Top Internet of Things Companies in Sofia

Ratings Updated: August 19, 2026

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18 Companies

Country: Bulgaria

City: Sofia

List of the Top Sofia IoT Developers

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Yalantis

4.8 79 reviews

Premier Verified

$50,000+

$50 - $99 / hr

250 - 999

Serves Sofia, Bulgaria

Services provided

60% IoT Development

10% AI Development

10% BI & Big Data Consulting & SI +2 services

10% Custom Software Development

10% Product Design

Yalantis is a prominent IoT App Development company recognized for its expertise in custom healthcare software solutions with IoT integration. They are praised for their seamless team integration, consistent delivery of reliable outcomes, and ability to adapt to changing requirements, with 100% positive feedback emphasizing their dedication, team continuity, and strategic partnership capabilities.

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Reviews mention Helpful
Yalantis has received positive feedback for their responsiveness and helpfulness throughout various projects. Clients highlighted the company's ability to deliver on time and adapt to specific needs, with one client noting the team's diligence and agile project management. Another client praised the account manager's kindness and support during the process. Overall, the sentiment is overwhelmingly positive, with clients appreciating Yalantis' professionalism and commitment to ensuring successful project outcomes.

Trading Platform & SaaS Development for B2B Software Co

5.0 Mar 26, 2024

Yalantis' management team was diligent and agile in their handling of the project. The first version was delivered on time with a high degree of accuracy to the product requirements and scope. Senior management especially was responsive and helpful in making sure everything worked smoothly and all our concerns were addressed.
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Staff Augmentation for Cloud Cost Management Company

5.0 Dec 14, 2023

In addition, the account manager Yalantis assigned us was super kind and helpful and held our hand throughout the process. He was also extremely courteous and patient guiding us in this project.
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Software Development Support for AI Cybersecurity Platform

5.0 Feb 27, 2025

They have been incredibly supportive, consistently providing quick responses and strictly adhering to our schedule. Their exceptional teamwork is evident in how they collaboratively address any irregular issues that arise, always working together to develop effective solutions. Their ability to scale resources according to project needs and seamlessly integrate with your team makes them a uniquely valuable partner in driving successful, trusted product development.
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Average Project Cost Breakdown

$50,000 to $199,999 (27) $200,000 to $999,999 (15) $10,000 to $49,000 (13) $1,000,000 to $9,999,999 (2)

What Clients Have Said
Yalantis is frequently recognized for providing high-quality services at competitive prices, with clients noting excellent value for money. Feedback highlights their ability to deliver projects on time and maintain clear communication, which fosters a strong partnership. One client emphasized that Yalantis offers a 'great quality-to-price ratio,' while another mentioned their pricing fit their budget perfectly. Overall, the sentiment regarding cost-effectiveness is overwhelmingly positive, although some clients expressed a desire for more precise initial estimates.
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More responsive than most other service providers

Yalantis is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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United States (45) Israel (3) England (3) China (3) Spain (2) Australia (2) Estonia (2) Canada (2) Sweden (2) Qatar (1) Poland (1) India (1) Norway (1) Nigeria (1) Switzerland (1) United Arab Emirates (1) Denmark (1) Kuwait (1)

This provider is fluent in 2 languages:

English

Ukrainian

This provider is available in 32 time zones:

Near East Time (NET)

Middle East Time (MET)

China Taiwan Time (CTT)

Brazil Eastern Time (BET)

Greenwich Mean Time (GMT)

India Standard Time (IST)

Japan Standard Time (JST)

Midway Islands Time (MIT)

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Cogniteq

4.9 45 reviews

Premier Verified

$10,000+

$50 - $99 / hr

50 - 249

Serves Sofia, Bulgaria

Services provided

10% IoT Development

75% Mobile App Development

10% Web Development +1 service

5% Custom Software Development

Cogniteq is a distinguished Internet of Things Development company, specializing in IoT App Development and IoT Solutions. Across various projects, 100% of reviews highlight their effective communication and project management, with clients appreciating their technical expertise, timely deliverables, and adaptability to project needs. Their consistent delivery of high-quality IoT features underscores their reputation for excellence in IoT App Development and consulting services.

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Reviews mention Collaborative
Cogniteq has received positive feedback regarding their collaborative approach, with clients emphasizing their proactive communication and teamwork. One client noted their 'very correct and friendly cooperation,' while another highlighted the company's 'transparency and collaborative problem-solving,' ensuring alignment throughout the project. Overall, the sentiment reflects a strong appreciation for Cogniteq's ability to foster a collaborative environment, contributing to successful project outcomes without any reported areas for improvement.

Web App React Development for IT Company

5.0 Dec 22, 2023

Both, their developers and key account managers were collaborative, pragmatic, and reliable. The focus on open communication and collaboration was evident throughout the project, ensuring a seamless working relationship. This approach facilitated a strong partnership and allowed for successful project execution.
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Mobile App Dev & UX/UI Design for Software Design Firm

5.0 Feb 9, 2024

The project management team oversaw both the hardware and software components, operating from our side of the collaboration. The team consistently met all deadlines but if they anticipated challenges in meeting specific feature deadlines, they proactively discussed them with us before making commitments. We ensured to consider and account for all potential risks in our planning. What stood out most about this company was its proactive approach to communication and planning. They consistently kept us informed about potential challenges in development and were open to discussing and mitigating risks together. Their level of transparency and collaborative problem-solving was truly impressive and ensured that we were always on the same page throughout the project.
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3 of 3 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 3 times in the past 6 months
Recent reviews of Cogniteq highlight strong client satisfaction with their flexibility, quality of work, and effective communication. Clients praised the company's ability to deliver projects on time and provide valuable insights, noting their proactive project management and responsiveness. Specific feedback emphasized the impressive outcomes achieved, including scalable infrastructure and successful feature development. Overall, the sentiment is overwhelmingly positive, with clients expressing a desire to continue partnerships and no significant areas for improvement identified.
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3 of 3 IoT Development reviews are 5 stars

$10,000 – $49,000 avg. project cost

IoT Development PROJECT HIGHLIGHT

Mobile App Dev for Control Systems Manufacturer
5.0 — Cogniteq developed an Android app for a control systems manufacturer. After learning the goals, they helped validate the client's IoT solution with a proof-of-concept app. Read more
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More responsive than most other service providers

Cogniteq is very responsive
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Sigma Software Group

4.8 37 reviews

Premier Verified

$50,000+

$50 - $99 / hr

1,000 - 9,999

Sofia, Bulgaria

Services provided

11% IoT Development

17% Mobile App Development

15% Custom Software Development +5 services

15% Web Development

11% BI & Big Data Consulting & SI

11% Cloud Consulting & SI

10% AI Consulting

10% Cybersecurity

Sigma Software Group is a versatile IT services company offering comprehensive software development, website creation, and application development solutions. The company is praised for its efficiency, creativity, and collaborative spirit, with 100% of reviewers highlighting timely delivery and satisfaction with product outcomes. While some suggest a need for more proactive guidance, 90% of feedback notes their adaptability and strong alignment with client needs and values.

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Reviews mention Detail-oriented
Clients consistently praise Sigma Software Group for their excellent attention to detail, noting that they effectively integrate into existing teams and maintain quality throughout the project lifecycle. One client highlighted their 'great quality and attention to detail relative to their price level,' while another emphasized their 'excellent attention to detail' and timely delivery of tasks. Overall, sentiment regarding detail-oriented work at Sigma Software Group is overwhelmingly positive, reflecting their commitment to quality and responsiveness.

Mobile App Development Services for Christian Tech Company

5.0 Aug 17, 2022

Sigma’s quality and attention to detail relative to their price level are great. Sigma’s project management style works well. They do a good job of dealing with bugs.
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Staff Aug & Web Development for Sports Data Co

5.0 Feb 20, 2025

Excellent attention to detail, and worked within our existing project management systems to ensure clear and timely delivery of tasks. They have always responded to our needs with urgency and quality.
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Industry Experience

Sigma Software Group has demonstrated strong expertise across various industries, particularly in Advertising & Marketing, Education, Financial Services, Food & Beverage, and Automotive. Clients consistently highlight their efficiency, creativity, and technical capabilities, with notable results in project management and collaboration. Overall sentiment is overwhelmingly positive, with many clients emphasizing their adaptability, cost-effectiveness, and alignment with company values, positioning Sigma as a strong candidate for projects in these sectors.
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IT Services Financial services Food & Beverage Other Industry Information technology Education Construction Arts, entertainment & music Software Sports Manufacturing Automotive Retail Real estate Design Healthcare Logistics & Supply Chain Advertising & marketing Gambling

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Average Project Cost Breakdown

$1,000,000 to $9,999,999 (8) $200,000 to $999,999 (7) $50,000 to $199,999 (5) $10,000 to $49,000 (3) Less than $10,000 (1)

What Clients Have Said
Clients consistently praise Sigma Software Group for their competitive pricing and strong value for money. Feedback highlights that their services fit well within budget constraints while delivering high-quality work. One client noted, "Good value for cost" and another emphasized that Sigma's pricing was a significant factor in choosing them over competitors. Overall, clients appreciate the balance between cost and the quality of services provided, often remarking on the efficiency and expertise of the Sigma team.
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Sofia, Bulgaria

bulevard "Cherni vrah"
Sofia, Bulgaria 1415
10 - 15

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App Streams Ltd

5.0 9 reviews

$25,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% IoT Development

30% Web Development

25% Mobile App Development +3 services

15% Application Testing

10% AI Development

10% UX/UI Design

App Streams Ltd is a versatile software development company specializing in front-end and back-end solutions, mobile applications, and full-stack services. Across various industries, they have consistently received positive feedback for their professionalism, timely delivery, and ability to integrate seamlessly with client teams. Approximately 100% of reviews highlight their strong communication, alignment in values, and exceptional project management skills.

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Industry Experience

App Streams Ltd has demonstrated expertise across diverse sectors, including healthcare, information technology, consumer products, manufacturing, automotive, and media. Clients commend their exceptional project management, strong culture fit, and the ability to deliver high-quality, reliable solutions promptly. In healthcare, their contributions significantly enhanced product usability and operational efficiency. In IT and consumer products, they excelled in developing interactive platforms. Overall, clients express high satisfaction, indicating a strong fit for projects requiring innovative development solutions in these industries.
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Software Other industries Information technology Consumer products & services Healthcare Manufacturing Automotive Media

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Average Project Cost Breakdown

$10,000 to $49,000 (1) $50,000 to $199,999 (1) $200,000 to $999,999 (1)

What Clients Have Said
Clients consistently report that App Streams Ltd offers excellent value for money, with many highlighting that their pricing aligns well with budget expectations. For instance, one client noted, 'Great culture fit' and 'Good value for cost,' while another remarked on their 'exceptional project management' and timely delivery of services. Overall, the sentiment is overwhelmingly positive, with clients expressing satisfaction with the quality of work relative to the cost, making App Streams a preferred partner for various projects.
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More responsive than most other service providers

App Streams Ltd is very responsive
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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

5.0

Willing to Refer

4.5

Local clients praise App Streams Ltd for their responsiveness and clear communication in developing web and mobile systems, including a successful e-bike fleet management platform. They emphasize professionalism and a good culture fit, highlighting the company's ability to deliver on time and meet project goals.
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Civitta

4.9 23 reviews

$25,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% IoT Development

25% AI Development

20% Cloud Consulting & SI +3 services

20% Custom Software Development

15% Enterprise App Modernization

10% Mobile App Development

Civitta is a digital transformation consultancy that provides IT services, SaaS development, and AI solutions. Reviews indicate strong project management, effective communication, and timely delivery, with a high client satisfaction rate of 95%. The recurring theme is their capability to integrate seamlessly with client teams and deliver innovative solutions that meet complex business needs.

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Reviews mention Reliable
Clients consistently regard Mediapark Group as a reliable partner, exemplified by one client's statement that the team 'gets the job done' and is 'responsive and reliable.' Their project management is praised for strong follow-through and availability, reinforcing the sentiment of dependability. The founder of a client company expressed confidence in Mediapark Group, stating they are 'a solid, good company' and indicating a long-term collaboration without seeking alternatives.

Mobile App Dev for Commercial Kitchen Equipment

4.5 Jan 30, 2017

Mediapark Group gets the job done, and the management is responsive and reliable. Mediapark Group has a very good project management team. There is strong follow-through, they're always available, and they try to understand our problems.
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Industry Experience

Civitta has demonstrated expertise across various industries, including Advertising & Marketing, Information Technology, Financial Services, and Business Services. Reviews consistently highlight their strengths in project management, timely delivery, and effective communication. Notably, clients in Advertising & Marketing praise their ability to enhance operational efficiency and reporting capabilities, while those in IT commend their software development and integration skills. Overall, Civitta is well-regarded for its innovative solutions and collaborative approach, making them a strong fit for projects across multiple sectors.
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Advertising & marketing Information technology Other industries Business services Financial services Media

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Average Project Cost Breakdown

$10,000 to $49,000 (5) $50,000 to $199,999 (5) $200,000 to $999,999 (3) Less than $10,000 (1)

What Clients Have Said
Clients consistently regard Civitta as offering good value for money, often highlighting their pricing as fitting within budget constraints. For instance, one client noted that Civitta's pricing 'fit our budget' while delivering high-quality outcomes. Overall sentiment reflects satisfaction with the cost-to-value ratio, with multiple reviews underscoring the company's ability to deliver effective solutions within reasonable financial parameters.
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United States (5) Lithuania (4) Russia (2) Australia (1) Hong Kong (1) Romania (1) United Arab Emirates (1) England (1)

This provider is fluent in 5 languages:

English

Polish

Estonian

Finnish

Ukrainian

This provider is available in 1 time zone:

Central European Time (CET)

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Quanterall

5.0 3 reviews

$50,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

15% IoT Development

30% Blockchain

30% Custom Software Development +2 services

15% Web Development

10% Mobile App Development

Quanterall is a software development company specializing in blockchain, smart contracts, and financial transaction systems. They are praised for their technical expertise, effective communication, and professionalism, with 100% of reviews mentioning high-quality deliverables and strong project management. Clients value Quanterall's flexibility and ability to integrate advanced technologies into complex projects efficiently.

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Industry Experience

Quanterall has demonstrated expertise across multiple industries, notably IT Services, Financial Services, and Logistics & Supply Chain. Clients commend their strong programming capabilities in Haskell and Erlang, effective testing practices, and flexibility in project management. The overall sentiment is highly positive, with clients noting Quanterall's ability to deliver high-quality solutions tailored to specific industry needs, particularly in developing financial smart contracts and integrated software solutions.
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IT Services Financial services Logistics & Supply Chain

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Average Project Cost Breakdown

$10,000 to $49,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
Quanterall is noted for delivering high-quality solutions that provide good value for money. Clients expressed satisfaction with the cost-effectiveness of their services, with one reviewer highlighting the company's ability to enhance existing systems efficiently. Another emphasized the strong relationship built through talent development, which contributed to the perceived value. Overall, feedback indicates that clients found Quanterall's pricing aligned with the quality of work delivered, reinforcing a positive sentiment regarding their cost and value proposition.
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Bulgaria (1) Singapore (1) England (1)

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Sofia, Bulgaria

Boulevard Tsarigradsko Shose 111, Sofia Tech Park, Labs Building
Sofia, Bulgaria 1784
76 - 100

+359 879 411 007

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BGO Software - The Digital Health Lab

4.8 18 reviews

$10,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% IoT Development

50% Custom Software Development

10% Application Management & Support +3 services

10% IT Managed Services

10% IT Strategy Consulting

10% Mobile App Development

BGO Software - The Digital Health Lab is a software development company specializing in creating solutions for healthcare, cybersecurity, and analytics. Client reviews highlight their professionalism, technical expertise, and commitment to project timelines, with 100% indicating satisfaction with deliverables and communication. Approximately 90% of reviewers emphasize their adaptability and understanding of complex project needs, underscoring their reputation for fostering strong client relationships and delivering tailored solutions.

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Reviews mention Accommodating
Clients have expressed a positive sentiment regarding BGO Software's accommodating nature, particularly highlighting their flexibility in adjusting schedules to support troubleshooting needs, even across time zones. A notable instance includes a project manager who ensured effective communication despite the distance, facilitating a smooth development process. Overall, feedback underscores BGO's commitment to client support and adaptability, contributing to a collaborative and efficient working relationship.

Custom Software Development for Clinical Research Center

5.0 Jul 7, 2023

Fast working and responding. Fully adaptable to our needs. They had an excellent attitude and care. Quite professional and fast working.
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Custom Software Development for Amazon Business Services Co

5.0 Jun 14, 2023

Yes, everything was delivered on time and they were adaptable as requirements changed. Amazon changed the way they display some of the product details 2 or 3 times during this year and we had to adapt. This was done seamlessly and to my satisfaction.
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Management Software Dev for Consulting Firm

4.0 Oct 10, 2017

They’re 8 hours ahead of us, so some of their developers apparently adjusted their schedules to be more accommodating to troubleshooting question/answers that we might have in the morning that come in late in their day. So, that hasn’t been an issue at all.
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Average Project Cost Breakdown

$50,000 to $199,999 (2) $200,000 to $999,999 (1)

What Clients Have Said
Clients consistently highlight BGO Software's strong value for money, with comments emphasizing their competitive pricing and high-quality deliverables. For instance, one client noted that while BGO was not the cheapest option, the exceptional skill and quality justified the investment. Another client appreciated the adaptability to budget constraints and the overall 'good value for cost.' Overall, the sentiment reflects satisfaction with the balance of cost and the value provided through their services.
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Switzerland (4) United States (4) Bulgaria (3) England (3) Netherlands (1)

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Review Rating from Clients

5.0/5.0

Quality

4.8

Schedule

4.8

Cost

4.8

Willing to Refer

5.0

Clients in Sofia praise BGO Software for their expertise in developing complex health and security solutions, emphasizing their responsiveness, professionalism, and ability to deliver tailored, scalable products on time. They highlight strong relationships and proactive communication throughout diverse projects.
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eLando

4.9 8 reviews

$25,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% IoT Development

30% Custom Software Development

10% Cloud Consulting & SI +5 services

10% Cybersecurity

10% IT Strategy Consulting

10% Low/No Code Development

10% Mobile App Development

10% Web Development

eLando is a software development company specializing in custom software solutions, digital transformation, and technical consulting. The overarching feedback from their reviews is overwhelmingly positive, with clients praising their technical expertise, responsiveness, and reliability. Approximately 90% of reviewers highlight eLando's ability to deliver projects on time and within budget, noting their excellent value for cost and strong alignment with client needs and company values.

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Reviews mention High-quality work
The feedback regarding eLando highlights their delivery of high-quality work consistently. Clients noted that eLando delivered projects on time, with one stating, "Everything was delivered on time with good quality," while another praised the "outstanding productivity and quality of work." The team was commended for their professionalism, technical expertise, and ability to add value at all stages of engagement, reinforcing the overall positive sentiment towards their capabilities.

Video Monitoring Tools Streaming & Communications Custom Software Solution Provider

5.0 Nov 10, 2023

Developed key components used by a critical service at the customer's site. Everything was delivered on time with good quality. Performed thorough research and applied new technologies whenever needed.
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Product Architecture & Dev Services for Consulting Company

5.0 Sep 27, 2023

Productivity and quality of work are outstanding. Very easy to work with the team as they are contributing to the product development discussion in a very professional and thoughtful way. Most impressive is working with a trusted partner who is adding value at every level of engagement - architectural discussions, technology stack choice, quality of work, productivity, user support.
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Average Project Cost Breakdown

$200,000 to $999,999 (3) $50,000 to $199,999 (2) $10,000 to $49,000 (1)

What Clients Have Said
eLando AD has received positive feedback regarding their cost and value for money, with clients highlighting that their pricing fits within budgetary constraints while still delivering high-quality services. One client noted the 'good value for cost' and another emphasized their 'competitive pricing.' Overall, the sentiment reflects satisfaction with eLando's ability to provide exceptional service at a reasonable price, making them a preferred choice for various projects.
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More responsive than most other service providers

eLando is very responsive
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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

5.0

Cost

4.8

Willing to Refer

5.0

Clients in the Sofia area praise eLando for their expertise in complex software development, including enterprise systems and digital transformation projects. They highlight successful outcomes like improved performance, scalability, and timely delivery, emphasizing strong communication and a good cultural fit.
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Devision

4.9 12 reviews

$50,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Services provided

20% IoT Development

40% Custom Software Development

30% Web Development +1 service

10% Mobile App Development

Devision is a versatile software development company providing services such as web application development, software updates, and staff augmentation. Reviews highlight their expertise in handling complex projects and their ability to integrate well with clients' teams. Approximately 90% of feedback is positive, with clients appreciating their professionalism, technical skills, and effective communication. Around 60% of reviewers specifically commend their project management capabilities, though some mention occasional challenges in estimating project timelines. Overall, Devision is recognized for delivering value and high-quality solutions.

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Reviews mention Professional
Clients consistently highlight Devision's professionalism, noting their readiness to assist and deliver on projects. One client emphasized their confidence in Devision's capabilities, stating, 'When Devision tells me that they can achieve something, I have complete confidence that they can.' Another remarked on their impressive professionalism and hard work, especially compared to other providers. Overall, the sentiment regarding professionalism is overwhelmingly positive, with no significant areas for improvement noted by clients.

Android App Redesign & Dev for SaaS Product

5.0 Nov 20, 2019

The team was great; they were always ready to help and deliver. We had almost daily follow ups and major weekly as well. Professionalism.
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Web Platform Development for Business Media Resource

5.0 Mar 23, 2016

Ultimately, Devision has been professional and very hard-working, which is typical for the eastern part of Europe. I would recommend them in a heartbeat without question. When Devision tells me that they can achieve something, I have complete confidence that they can in fact do it.
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Industry Experience

Devision has demonstrated expertise across various industries, including Education, Energy & Natural Resources, Manufacturing, Hospitality, and others. Clients commend their strong project management, technical capabilities, and ability to enhance operational efficiency. Positive feedback highlights their responsiveness and quality of work, leading to increased user engagement and revenue growth. Overall, Devision is well-suited for projects in sectors requiring innovative software solutions and team augmentation.
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Energy & natural resources Human Resources Software Arts, entertainment & music Hospitality & leisure Manufacturing Chemicals & Biotechnology Education IT Services

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Bulgaria (3) Netherlands (2) Croatia (1) Germany (1) Switzerland (1) United Arab Emirates (1) United States (1) England (1)

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Review Rating from Clients

5.0/5.0

Quality

5.0

Schedule

4.3

Cost

5.0

Willing to Refer

5.0

Local clients praise Devision for delivering diverse digital solutions, from booking platforms to complex management systems, with measurable business improvements like increased revenue and streamlined workflows. They emphasize the company's responsiveness, professionalism, and ability to handle projects of varying complexity.
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Aionys

5.0 13 reviews

$5,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Services provided

10% IoT Development

30% Custom Software Development

15% AI Development +4 services

15% Mobile App Development

10% Enterprise App Modernization

10% IT Staff Augmentation

10% Low/No Code Development

Aionys is an IoT development company specializing in IoT solutions and integration for the manufacturing industry. The reviews indicate a high level of satisfaction, with 100% of clients praising their seamless implementation and effective project management. Clients highlight Aionys's ability to enhance operational efficiency through automation and real-time inventory monitoring, underscoring their expertise in cyber-physical software development.

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Reviews mention Knowledgeable
Clients express a strong sentiment regarding Aionys' knowledgeable team, highlighting the extensive technical expertise of the founders and the skilled professionals they provide. One executive noted the successful onboarding of a highly qualified React/Electron developer, emphasizing the company's meticulous attention to detail and responsiveness. Overall, feedback indicates a high level of satisfaction with Aionys' ability to meet specialized project requirements efficiently.

Digital Platform Development for Healthcare Company

5.0 Jun 29, 2023

The company’s founders possess extensive technical expertise and diligently oversee the competency level of their team. They demonstrate meticulous attention to detail and maintain open lines of communication, ensuring constant availability and responsiveness.
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Industry Experience

Aionys has demonstrated expertise across various industries, including manufacturing, healthcare, eCommerce, real estate, and software development, consistently receiving positive feedback for their project management, technical skills, and communication. Clients in manufacturing praised their automation solutions, while those in healthcare highlighted their adaptability in developing safety and monitoring systems. In eCommerce and real estate, Aionys delivered efficient mobile and web applications. Overall, sentiment across industries reflects satisfaction with Aionys' responsiveness, quality of deliverables, and alignment with client values.
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Design Financial services IT Services Manufacturing Other Industry Arts, entertainment & music Healthcare Software Real estate Consulting eCommerce

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Average Project Cost Breakdown

$10,000 to $49,000 (3) $50,000 to $199,999 (3) $200,000 to $999,999 (1)

What Clients Have Said
Clients generally express satisfaction with Aionys' cost-effectiveness and value for money. For instance, one client noted that Aionys' pricing fit their budget and provided good value for the cost. Another client highlighted that the costs were predictable and remained within the target range. Overall, the sentiment reflects a positive perception of Aionys' pricing structure, with many clients appreciating the balance between quality and affordability in their services.
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Italy (2) Lithuania (2) United States (2) Canada (1) Czech Republic (1) Slovakia (1) Sweden (1) Ukraine (1)

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ThingsLog

5.0 1 review

$1,000+

Undisclosed

10 - 49

Sofia, Bulgaria

Services provided

40% IoT Development

20% IT Managed Services

10% AI Development +3 services

10% Application Management & Support

10% Mobile App Development

10% Web Development

ThingsLog is an IoT solutions provider specializing in designing, documenting, and implementing IoT devices and applications for client projects. The company consistently receives positive feedback, with 100% of reviewers mentioning their innovative and cost-efficient solutions. Clients commend their project management skills and responsiveness, appreciating their ability to deliver complex projects within budget and requirements.

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Industry Experience

ThingsLog has demonstrated strong expertise in the IT Services industry, particularly in IoT solutions and cybersecurity. Their innovative approaches have led to significant impacts, such as a 35% reduction in consumption leaks for clients. The team is noted for its exceptional project management and responsiveness, fostering long-term collaborations. Potential clients in IT services seeking advanced IoT integrations and data solutions would find ThingsLog a valuable partner.
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IT Services

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Average Project Cost Breakdown

$50,000 to $199,999 (1)

What Clients Have Said
Clients highlight ThingsLog's competitive pricing and the high value delivered through innovative IoT solutions. One client noted a $50,000–$60,000 investment, emphasizing that their collaboration has led to a 35% reduction in consumption leaks, showcasing cost efficiency. Overall, the sentiment is positive, with clients expressing satisfaction with the quality of service relative to investment, recommending ThingsLog as a wise choice for potential customers.
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Review Rating from Clients

5.0/5.0

Quality

4.5

Schedule

4.0

Cost

5.0

Willing to Refer

5.0

Local clients describe ThingsLog as a highly capable team that provides innovative, cost-effective IoT solutions, including leak detection and data security. They emphasize the company's professionalism, project management skills, and their ongoing collaboration since 2019.
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Dision

5.0 1 review

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Services provided

20% IoT Development

40% Mobile App Development

20% UX/UI Design +2 services

10% Wearable App Development

10% Web Development

Dision is an Android development company known for its exceptional technical skills and efficient project management. Reviewers consistently praise their organizational abilities, timely delivery, and innovative contributions, particularly in integrating client processes. Despite minor remote communication challenges, the feedback is overwhelmingly positive, with 100% of reviewers appreciating their adaptability and eagerness to tackle complex projects.

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Industry Experience

Dision has demonstrated strong expertise in the Information Technology sector, specifically in developing Android applications for preschool administration software. Feedback highlights their organizational skills, timely delivery, and collaborative approach, which have led to significant user engagement across 700 preschools in Southeast Asia. Clients appreciate their adaptability to new processes, though cultural communication nuances may arise. Overall, Dision is well-suited for projects requiring innovative mobile solutions in the educational technology industry.
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Information technology

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Average Project Cost Breakdown

$10,000 to $49,000 (1)

What Clients Have Said
Clients have noted that Dision offers competitive pricing for their services, with one client investing around $50,000 for a substantial project involving multiple Android applications. Overall sentiment reflects a strong perception of value for money, as clients appreciate the team's organizational skills and timely delivery. The ability to integrate well with existing processes and provide innovative solutions further enhances their perceived value, despite minor concerns regarding communication due to cultural differences.
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Sofia, Bulgaria

ul. Tsaribrodska 94
Sofia, Bulgaria 1309
2 - 5

+359.87.656.6334

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MENA Software

4.8 4 reviews

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% IoT Development

25% Blockchain

15% Back Office Outsourcing +5 services

10% BI & Big Data Consulting & SI

10% Business Consulting

10% Custom Software Development

10% Mobile App Development

10% Web Development

MENA Software is a versatile software development company specializing in platform development, blockchain solutions, and app creation. Their services have received overwhelmingly positive feedback, with approximately 100% of clients noting their effective project management and dedication. Clients consistently highlight the company's strong competence, high-quality output, and affordability, with no major areas for improvement suggested.

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Reviews mention Reasonable pricing
Clients have positively noted MENA Software's reasonable pricing, describing their services as 'affordable' and 'great prices.' One managing partner emphasized that the software updates provided were cost-effective, which contributed to overall client satisfaction. The feedback reflects a favorable sentiment towards their pricing strategy, highlighting it as a significant factor in their decision to choose MENA Software for development services.

Software Update for Online Consulting Service

5.0 Oct 19, 2018

The way they work and deal with customers is remarkable. They also offer great prices.
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Average Project Cost Breakdown

$10,000 to $49,000 (2) Less than $10,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
MENA Software has been recognized for offering competitive pricing and delivering significant value for money. Clients noted the cost-effectiveness of their services, with one stating they provided updates at an 'affordable price.' Effective project management and dedication were highlighted, contributing to a positive perception of value. Overall, the sentiment reflects satisfaction with the quality of work relative to the costs incurred, with no major complaints regarding pricing.
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Bulgaria (2) United Arab Emirates (1)

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Review Rating from Clients

4.8/5.0

Quality

5.0

Schedule

4.8

Cost

5.0

Willing to Refer

4.8

Reviewers in Sofia commend MENA Software for their competence in building cutting-edge systems, from company platforms to blockchain projects. Clients value their professionalism, seamless workflow, and commitment to delivering tailored, high-quality solutions on time.
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findy IoT

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sofia, Bulgaria

Services provided

70% IoT Development

15% Custom Software Development

15% Engineering

Findy IoT is an IoT development company. They were launched in 2015 and provide IoT development and Custom Software Development.
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IndigoVerge

Not yet reviewed

$10,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

30% IoT Development

30% Custom Software Development

15% Web Development +3 services

10% Business Consulting

10% Mobile App Development

5% Social Media Marketing

IndigoVerge is a software development company. In Sofia, Bulgaria, the firm was launched in 2006. Their team focuses on Custom Software Development and IoT development.
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Soitron

Not yet reviewed

$5,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Services provided

10% IoT Development

25% IT Managed Services

20% IT Staff Augmentation +4 services

15% Cybersecurity

15% Web Development

10% Custom Software Development

5% Back Office Outsourcing

Soitron is a Bratislava 25, Slovakia-based IT managed services company. The team provides IT managed services and IT staff augmentation.
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Sofia, Bulgaria

XS Tower, 5 “Panorama Sofia” Str.
Sofia, Bulgaria 1766
76 - 100

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Wildorb Interactive Design Studio

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% IoT Development

10% Application Testing

10% Branding +7 services

10% Custom Software Development

10% E-Commerce Development

10% Graphic Design

10% Mobile App Development

10% UX/UI Design

10% Web Design

10% Web Development

Wildorb Interactive Design Studio, a software development firm, is based in Sofia, Bulgaria. They provide Custom Software Development and UX/UI Design.
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NCB Ltd

Not yet reviewed

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Services provided

10% IoT Development

30% Custom Software Development

30% Web Development +2 services

20% Application Testing

10% Blockchain

Founded in 2013, NCB Ltd is a software development firm. Their team offers Custom Software Development and Web Development.
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OBG

Not yet reviewed

$10,000+

$25 - $49 / hr

2 - 9

Sofia, Bulgaria

Services provided

10% IoT Development

30% Mobile App Development

30% Web Development +3 services

10% Custom Software Development

10% Enterprise App Modernization

10% IT Managed Services

App development firm OBG was founded in 2014. The team focuses on Mobile App Development and Web Development and is based in Sofia, Bulgaria.
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Smartaly

Not yet reviewed

$25,000+

$50 - $99 / hr

10 - 49

Pravets, Bulgaria

Services provided

60% IoT Development

20% AI Development

20% Custom Software Development

Smartaly, an IoT development company, was founded in 2019. The team specializes in IoT development and Custom Software Development and is in La Roquette-sur-Siagne, France and Pravets, Bulgaria.
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Pravets, Bulgaria

sq. Todor Jivkov
Pravets, Bulgaria 2161
16 - 20

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Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Sigma Software Group

2 App Streams Ltd

3 Civitta

4 Quanterall

5 BGO Software - The Digital Health Lab

6 eLando

7 Devision

8 Aionys

9 ThingsLog

10 Dision

11 MENA Software

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

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Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 11 Sofia IoT Developers

Sigma Software Group

$50,000+

$50 - $99 / hr

1,000 - 9,999

Sofia, Bulgaria

Ability to deliver

37.4/40.0

17.6/20 Reviews

10/10 Clients & Experience

9.8/10 Market Presence

Service focus

11% IoT Development

89% Other

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App Streams Ltd

$25,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

35.4/40.0

17.6/20 Reviews

10/10 Clients & Experience

7.8/10 Market Presence

Service focus

10% IoT Development

90% Other

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Civitta

$25,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Ability to deliver

33.8/40.0

16.8/20 Reviews

10/10 Clients & Experience

7/10 Market Presence

Service focus

10% IoT Development

90% Other

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Quanterall

$50,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

33.5/40.0

16.2/20 Reviews

10/10 Clients & Experience

7.2/10 Market Presence

Service focus

15% IoT Development

85% Other

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BGO Software - The Digital Health Lab

$10,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

33.9/40.0

15.6/20 Reviews

10/10 Clients & Experience

8.3/10 Market Presence

Service focus

10% IoT Development

90% Other

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eLando

$25,000+

$50 - $99 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

32.2/40.0

17.6/20 Reviews

10/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% IoT Development

90% Other

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Devision

$50,000+

$50 - $99 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

28.5/40.0

16/20 Reviews

7.2/10 Clients & Experience

5.2/10 Market Presence

Service focus

20% IoT Development

80% Other

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Aionys

$5,000+

$25 - $49 / hr

50 - 249

Sofia, Bulgaria

Ability to deliver

29.9/40.0

16.8/20 Reviews

7.8/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% IoT Development

90% Other

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ThingsLog

$1,000+

Undisclosed

10 - 49

Sofia, Bulgaria

Ability to deliver

22.7/40.0

16.2/20 Reviews

1.2/10 Clients & Experience

5.3/10 Market Presence

Service focus

40% IoT Development

60% Other

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Dision

$10,000+

$50 - $99 / hr

2 - 9

Sofia, Bulgaria

Ability to deliver

21.4/40.0

16.2/20 Reviews

0/10 Clients & Experience

5.2/10 Market Presence

Service focus

20% IoT Development

80% Other

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MENA Software

$5,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

20.8/40.0

15.6/20 Reviews

0/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% IoT Development

90% Other

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findy IoT

Undisclosed

Undisclosed

10 - 49

Sofia, Bulgaria

Ability to deliver

12.6/40.0

0/20 Reviews

8/10 Clients & Experience

4.6/10 Market Presence

Service focus

70% IoT Development

30% Other

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IndigoVerge

$10,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

9.3/40.0

0/20 Reviews

4/10 Clients & Experience

5.3/10 Market Presence

Service focus

30% IoT Development

70% Other

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Soitron

$5,000+

$50 - $99 / hr

250 - 999

Sofia, Bulgaria

Ability to deliver

8.8/40.0

0/20 Reviews

3.2/10 Clients & Experience

5.6/10 Market Presence

Service focus

10% IoT Development

90% Other

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Wildorb Interactive Design Studio

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

5.2/40.0

0/20 Reviews

0/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% IoT Development

90% Other

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NCB Ltd

$1,000+

$25 - $49 / hr

10 - 49

Sofia, Bulgaria

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% IoT Development

90% Other

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OBG

$10,000+

$25 - $49 / hr

2 - 9

Sofia, Bulgaria

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% IoT Development

90% Other

View Profile Visit Website
Smartaly

$25,000+

$50 - $99 / hr

10 - 49

Pravets, Bulgaria

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

60% IoT Development

40% Other

View Profile Visit Website

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List of the Top Sofia IoT Developers

Reviews mention Helpful

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Yalantis is very responsive

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App Streams Ltd is very responsive

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Custom Software Development for Clinical Research Center

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eLando is very responsive

Reviews mention Professional

Android App Redesign & Dev for SaaS Product

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Reviews mention Knowledgeable

Digital Platform Development for Healthcare Company

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List of the Top 11 Sofia IoT Developers

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