Top Application Modernization Services in Zagreb

Ratings Updated: April 4, 2026

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10 Leaders 12 Contenders

22 Companies

Country: Croatia

City: Zagreb

List of the Top Zagreb Legacy Modernization Services

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Notch

4.9 19 reviews

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Premier Verified

$50,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Services provided

15% Enterprise App Modernization

35% Custom Software Development

20% AI Development +3 services

10% AI Agents

10% AI Consulting

10% IT Staff Augmentation

Notch is a software modernization company specializing in enterprise application modernization and digital transformation. With a strong focus on app modernization, they have been praised for their dedication and innovative solutions, leading to significant improvements in client tools and user experience. Approximately 100% of the reviews highlight their effective project management and responsiveness to client needs, resulting in exceeding expectations and fostering strong partnerships.

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Reviews mention Collaborative
The sentiment regarding collaboration with Notch is overwhelmingly positive. Clients appreciate Notch's open communication and responsiveness, noting that they actively engage in discussions to enhance project outcomes. One client emphasized the importance of their agile approach, which allows for flexibility and adaptability throughout the development process. The client's feedback highlighted Notch's willingness to provide constructive suggestions rather than simply agreeing, fostering a productive partnership. Overall, the collaboration is seen as effective and beneficial for achieving project goals.

Custom Software Development for Crop Insurance Company

4.5 Apr 18, 2023

Notch delivered on the commitments they made and were very responsive to our needs. They would also bring concerns forward when necessary and didn't hesitate to ask for what they needed in order to meet our expectations. The strong partnership they brought to the table from day one was evident. They took accountable for their commitments, raised concerns when necessary, and were 100% on board with meeting the goals that we had.
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Industry Experience

The provider has demonstrated expertise across multiple industries including Information Technology, Telecommunications, and Automotive. Clients commend their proficiency in software development, AI integration, and project management, often noting effective communication and the ability to meet tight deadlines. Overall sentiment is highly positive, with significant praise for their innovation and commitment to project success, making them a strong fit for IT and digital transformation projects.
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Automotive Agriculture Software Sports IT Services Construction Education Manufacturing Information technology Telecommunications

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Average Project Cost Breakdown

$200,000 to $999,999 (9) Less than $10,000 (1) $10,000 to $49,000 (1) $1,000,000 to $9,999,999 (1)

What Clients Have Said
Clients consistently praised Notch for providing excellent value for money, highlighting their competitive pricing and high-quality service. For instance, one client noted that Notch's pricing fit their budget while delivering outstanding results, and another emphasized the team's dedication and impactful advice, which exceeded expectations. Overall, the sentiment reflects strong satisfaction with the cost-to-value ratio, with several clients expressing a desire to continue or expand their engagements due to the effectiveness and affordability of Notch's services.
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Review Rating from Clients

5.0/5.0

Quality

4.9

Schedule

5.0

Cost

4.6

Willing to Refer

5.0

Zagreb-based clients highlight Notch’s skilled developers in software engineering, AI, and system integration, successfully managing national research systems and telecom projects. Their proactive approach, technical excellence, and seamless communication lead to impactful, timely results in diverse, high-stakes initiatives.
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Thespian

4.9 7 reviews
Premier Verified

$10,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

15% Enterprise App Modernization

30% Custom Software Development

25% Web Development +2 services

15% Blockchain

15% UX/UI Design

Thespian is a software development company known for creating custom applications, platforms, and solutions tailored to diverse industries. They have received overwhelmingly positive feedback, with clients highlighting their technical expertise, professionalism, and commitment to long-term partnerships. Notably, 100% of reviewers praised their communication and project management, while 83% emphasized their ability to deliver tailored solutions effectively.

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Reviews mention Open to feedback
The feedback regarding Thespian's openness to feedback is overwhelmingly positive. Clients appreciated the continuous communication and transparency throughout the project, as highlighted by one CEO who noted the weekly progress reports and the ability to provide ongoing input. Their team responded promptly and professionally to requests for adjustments, demonstrating a commitment to client satisfaction. Overall, clients feel confident in Thespian's ability to handle complex projects while remaining receptive to client needs.

Custom Software Dev for National Dog Breeding Association

5.0 Jan 13, 2026

One of the aspects we appreciated the most was Thespian’s communication and transparency. We received weekly progress reports, and we had an open communication channel where we could continuously provide feedback, request adjustments, and clarify requirements. Their team reacted promptly and professionally to our inputs throughout the entire development process.
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Average Project Cost Breakdown

$50,000 to $199,999 (3)

What Clients Have Said
Clients consistently highlight Thespian's pricing as fitting their budgets and providing good value for the cost. One client noted, 'Good value for cost' while another emphasized, 'Pricing fit our budget.' The overall sentiment reflects satisfaction with the cost-effectiveness of their services, with multiple clients recommending Thespian for their reliability and the quality of work delivered within budgetary constraints.
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More responsive than most other service providers

Thespian 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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Croatia (2) Norway (2) Canada (1) Germany (1) Switzerland (1)

This provider is fluent in 3 languages:

English

Croatian

Serbian

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LeverUP

5.0 4 reviews
Premier Verified

$10,000+

$100 - $149 / hr

10 - 49

Zagreb, Croatia

Services provided

15% Enterprise App Modernization

50% CRM Consulting and SI

20% Email Marketing +1 service

15% AI Development

LeverUP is a consulting agency specializing in Salesforce development and Salesforce Marketing Cloud support and implementation. They have received overwhelmingly positive feedback from clients, with 100% of reviewers highlighting their exceptional project management skills and timely delivery. Clients appreciate their expertise, transparency, and collaborative approach, with 75% mentioning their ability to enhance platform performance and streamline operations. LeverUP is consistently recognized as a reliable and responsive partner.

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Reviews mention Reliable
Clients consistently highlight LeverUP's reliability and responsiveness, emphasizing their proactive support and timely issue resolution. One client noted a significant improvement in the stability of their Salesforce Marketing Cloud environment, attributing it to LeverUP's efficient handling of platform incidents and clear communication. The firm's deep expertise and collaborative approach have established them as a trusted partner, with feedback indicating satisfaction and no major areas for improvement, reinforcing their reputation for delivering high-quality support.

Cloud Support & Maintenance for Telecommunications Company

5.0 Oct 7, 2025

Since engaging LeverUP, we’ve seen a noticeable improvement in the stability and reliability of our Salesforce Marketing Cloud environment. Platform incidents are resolved faster, recurring issues have been reduced, and campaign delivery performance has become more consistent. Their proactive support has also helped us streamline internal processes, reduce downtime, and increase confidence in our automated journeys and data integrations. Overall, LeverUP’s contribution has led to smoother operations and more efficient use of SFMC across our marketing activities. LeverUP has demonstrated excellent project management and responsiveness throughout our cooperation. They handle requests efficiently, communicate clearly, and consistently deliver agreed tasks on time. Their team is flexible and attentive to our needs — whether it’s resolving urgent platform issues or supporting ongoing improvements. We especially value their proactive approach, structured communication, and willingness to adapt to our internal priorities and timelines. What stands out most about LeverUP is their deep Salesforce Marketing Cloud expertise combined with a truly collaborative approach. They don’t just solve issues — they take the time to understand our setup, explain the reasoning behind their solutions, and suggest improvements that make a real difference. LeverUP has been a reliable, knowledgeable, and responsive partner, consistently delivering high-quality support and helping us get the most out of Salesforce Marketing Cloud. Their responsiveness, reliability, and ability to translate complex technical topics into practical guidance have made them a trusted partner rather than just a support vendor. We’ve been very satisfied with LeverUP’s support and collaboration. Their team is knowledgeable, reliable, and easy to work with. At this stage, there aren’t any major areas for improvement — we simply look forward to continuing our cooperation and building on the strong foundation already established.
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2 of 2 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews of LeverUP highlight their exceptional project management and deep expertise in Salesforce solutions. Clients from CGI and Bite Group praised their thorough assessments, proactive support, and timely issue resolution, noting significant improvements in operational stability and campaign efficiency. The feedback emphasizes LeverUP's collaborative approach, effective communication, and ability to deliver on time and under budget. Overall, client sentiment is overwhelmingly positive, with no major areas for improvement identified.
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Industry Experience

LeverUP demonstrates strong expertise in Information Technology, Manufacturing, Gambling, and Telecommunications. Clients commend their exceptional project management, timely delivery, and deep knowledge in Salesforce solutions. Feedback highlights their ability to enhance operational stability, streamline processes, and provide tailored support. Overall sentiment is highly positive across industries, indicating LeverUP is well-suited for clients seeking expert Salesforce implementation and ongoing support.
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Information technology Manufacturing Gambling Telecommunications

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Austria (2) Canada (1) Latvia (1)

This provider is fluent in 2 languages:

English

Croatian

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OmnifIT d.o.o.

Not yet reviewed
Verified

$5,000+

$50 - $99 / hr

2 - 9

Varaždin, Croatia

Services provided

25% Enterprise App Modernization

25% Custom Software Development

15% API Development +5 services

15% IT Strategy Consulting

5% Computer Engineering

5% IT Managed Services

5% Microservices Architecture Services

5% Other IT Consulting and SI

OmnifIT d.o.o., a custom software development company, was launched in 2020. The small team offers Custom Software Development and Enterprise App Modernization.
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$5,000 Startups & MVPs with fast launch needs. $10,000 SMEs building scalable, multi-platform apps. $20,000 Enterprises needing robust, complex systems.

Custom Software Development powered by Zendify
From POC to enterprise systems, each tier includes UI/UX design, custom development, launch, and post-launch support. Medium and large tiers add system architecture, CI/CD automation, and expert guidance. Powered by Zendify for faster delivery, seamless upgrades, zero-downtime updates, and easy client-side maintenance.
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Five, an Endava company

4.9 36 reviews

$10,000+

$100 - $149 / hr

250 - 999

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

25% UX/UI Design

15% Digital Strategy +4 services

15% Mobile & App Marketing

15% Mobile App Development

10% AR/VR Development

10% Web Development

Five, an Endava company, is a versatile digital agency specializing in mobile app development, strategic consulting, and user acquisition. Reviewers commend their comprehensive project management and innovative approach, highlighting their effectiveness in delivering high-quality work on time and within budget. Approximately 90% of clients praise their expertise, adaptability, and client-focused service, underscoring their commitment to fostering successful, long-term partnerships.

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Industry Experience

Five, an Endava company, has demonstrated strong expertise across various industries including Pharmaceuticals, Education, Software, Financial Services, IT Services, and Hospitality. Clients commend their strategic consulting capabilities, particularly in user acquisition and mobile app development, highlighting their adaptability and effective project management. Feedback emphasizes their commitment to meeting client needs, fostering long-term partnerships, and delivering quality results. Overall sentiment is positive, particularly in Education and Software sectors, where their impact has been notably beneficial.
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Pharmaceuticals Education Software Financial services Arts, entertainment & music Other Industry Hospitality & leisure Consumer Products IT Services Publishing Retail Advertising & marketing Chemicals & Biotechnology Healthcare Information technology Media Design

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Average Project Cost Breakdown

$50,000 to $199,999 (13) $10,000 to $49,000 (7) $200,000 to $999,999 (7) $1,000,000 to $9,999,999 (3) Less than $10,000 (1)

What Clients Have Said
Five, an Endava company, is frequently praised for delivering excellent value for money, with clients noting their competitive pricing and high-quality outcomes. One client reported spending between $150,000 and $250,000, emphasizing that Five exceeded expectations and effectively managed budgets. Another client highlighted their investment of $40,000 to $50,000, appreciating the agency's strategic insights that significantly reduced costs. Overall, the sentiment is overwhelmingly positive, with many clients recommending Five for their responsiveness and commitment to client success.
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United States (29) Ireland (3) Canada (2) France (1)

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Zagreb, Croatia

Heinzlova ulica 33
Zagreb, Croatia 10000
101 - 150

+385 1 5535 036

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Codebooq

5.0 4 reviews

$10,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

30% Enterprise App Modernization

30% IT Staff Augmentation

25% Custom Software Development +1 service

15% Mobile App Development

Codebooq is a comprehensive software development company that offers services across web, mobile, embedded, and infrastructure development. They have received overwhelmingly positive reviews, with clients praising their strong technical expertise, adaptability, and proactive approach. Around 90% of reviewers highlight Codebooq's great culture fit and commitment to meeting project needs efficiently, though there are minor suggestions for improvement in communication and timeline definitions.

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Reviews mention Well-organized projects
Clients have praised Codebooq for their well-organized project management, highlighting timely delivery and effective communication. One client noted their proactive approach in addressing potential challenges, which contributed to a smooth execution of the project. Additionally, the team’s ability to present various scenarios helped clients make informed decisions, further emphasizing their organizational skills. However, there was a suggestion for improved timeline definition amidst evolving project requirements.

Web & Mobile App Dev for Gardening Company

5.0 Jul 24, 2023

The project team consisted of four full-stack developers, with two backend developers, one frontend developer, and one mobile developer. The items were delivered on time. The project is still ongoing. We are planning for a second iteration to further improve the product. When faced with multiple options, they presented various scenarios and helped us make informed decisions that best fit our business needs.
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Industry Experience

Codebooq has demonstrated expertise primarily in the Software and Manufacturing industries. In Software, they excel in developing distributed systems and custom applications, with clients noting their strong technical skills and proactive communication. In Manufacturing, they provide comprehensive software solutions for advanced systems, successfully meeting tight deadlines and project demands. Overall, feedback across both sectors reflects high satisfaction with their commitment, technical knowledge, and alignment with client values, indicating a strong fit for projects in these industries.
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Software Manufacturing

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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently commend Codebooq for delivering good value for cost, highlighting their strong alignment with customer needs and company values. For instance, one client noted their selection of Codebooq was due to 'good value for cost' and another mentioned satisfaction with a €30,000 investment, citing experienced developers and timely delivery. Overall, the sentiment reflects a positive perception of Codebooq's pricing relative to the quality of services provided.
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Croatia (2) Austria (1)

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Serengeti

4.9 13 reviews

Undisclosed

$25 - $49 / hr

50 - 249

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

40% Custom Software Development

10% AI Development +4 services

10% IT Managed Services

10% IT Staff Augmentation

10% IT Strategy Consulting

10% IoT Development

Serengeti is a software development company specializing in providing staff augmentation services, particularly in the fields of Java development and integration with financial and public sector systems. Their clients consistently praise their flexibility, quick adaptation, and professional approach, with over 90% of reviewers highlighting their responsiveness and integration capabilities. While a few suggest keeping up with agile trends, the overall feedback is overwhelmingly positive, with many recommending Serengeti for their quality and reliability.

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Reviews mention Timely
The overall sentiment regarding Serengeti's timeliness is highly positive. Clients have praised their impressive response times and adherence to project deadlines. For instance, one reviewer highlighted their 'awe-inspiring' response time, which was crucial for project success. Additionally, another client noted that all deliverables were completed on time, with minimal bugs reported. This consistent punctuality has contributed to client satisfaction and led to further project opportunities.

IT Staff Augmentation for IT Services Company

5.0 Nov 10, 2022

The team was able to adapt quickly and fully integrate with our team in very short time. Their response time was awe-inspiring, which was very important to us.
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Custom CRM Development for Software Company

5.0 Aug 17, 2020

The project had an agile approach, we had daily standups, and we used Jira. Everything was delivered on time, and the number of bugs was incredibly low. There were only two blocker bugs in the whole project.
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Industry Experience

Serengeti has demonstrated expertise across various sectors, notably IT Services, Financial Services, Telecommunications, Information Technology, and Healthcare. Reviews highlight their strengths in staff augmentation, responsiveness, and integration with client teams, leading to successful project outcomes. Clients praised their ability to adapt to specific business needs and deliver high-quality software solutions. Overall, the sentiment is positive, especially in IT and Financial Services, indicating a strong fit for projects requiring flexible, skilled development teams.
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IT Services Financial services Information technology Telecommunications Healthcare

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Croatia (7) Germany (2) Austria (1) Serbia (1)

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Review Rating from Clients

4.9/5.0

Quality

4.8

Schedule

4.7

Cost

4.8

Willing to Refer

5.0

Reviewers from Zagreb commend Serengeti's extensive experience in Java development, system integration, and team augmentation for financial, telecom, and government projects. They value their technical proficiency, agile management, and ability to deliver scalable solutions on time, making them a trusted, long-term partner.
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Leapwise

5.0 3 reviews

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

50% Custom Software Development

15% IoT Development +3 services

10% Cybersecurity

10% Microservices Architecture Services

5% Low/No Code Development

Leapwise is a technology services company specializing in customized software development and integration solutions, particularly for BSS/OSS platforms. The company is praised for its ability to quickly adapt to client needs, with 100% of reviewers highlighting their efficient project management and responsiveness. Clients value Leapwise for its cultural compatibility, cost-effectiveness, and highly qualified team.

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Reviews mention Timely
The overall sentiment regarding Leapwise's timeliness is highly positive. Clients noted 'quick response times' and emphasized that items were generally delivered on time, attributing delays primarily to unclear requirements. One client specifically highlighted their trust in Leapwise, stating, 'they've never let us down.' This reflects a strong reliability in meeting deadlines and adapting to changes swiftly, reinforcing their reputation for effective project management.

Software Development for Cybersecurity Company

5.0 Aug 11, 2023

Yes, most of the time. Not delivered items or back-and-forth discussions are mainly a result of not clear requirements. Aside from that, changing things happened also in a very short time.
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Custom Software Development for MVNOs Provider

5.0 Feb 5, 2025

Again, as this is a long lasting partnership, we found an efficient and transparent way for planning/alignment purposes using slightly adapted scrum methodology. Meeting deadlines is key in our business, we're known to delivery timeline. Detailed planning is done collectively, there's room to react on unforeseen changes, obstacles.
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Industry Experience

Leapwise demonstrates strong expertise in the Telecommunications and IT Services industries, as evidenced by positive feedback on their responsive project management and high-quality deliverables. Clients appreciate their capability to provide customized software solutions and adapt quickly to changing project needs. Overall sentiment indicates that Leapwise is a reliable partner, particularly for organizations requiring specialized BSS/OSS solutions and agile development processes.
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Telecommunications IT Services

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Average Project Cost Breakdown

What Clients Have Said
Clients consistently highlight Leapwise's competitive pricing and excellent value for money. One client noted that Leapwise was selected due to its 'pricing fit our budget' and 'good value for cost,' emphasizing a strong alignment with their financial expectations. Another reviewer echoed this sentiment, stating Leapwise provided a 'great culture fit' while maintaining affordability. Overall, the feedback reflects a positive sentiment regarding the company's cost-effectiveness and the quality of services rendered.
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littlecode

4.9 9 reviews

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

25% Custom Software Development

25% Web Development +3 services

15% AI Consulting

15% AI Development

10% Mobile App Development

Littlecode is a software development company specializing in Enterprise Application Modernization and digital transformation services. Reviews highlight their high coding standards and competence, with 100% of reviewers praising their adaptability and alignment with company values. Clients appreciate their timely delivery and flexibility, indicating a strong cultural and budget fit.

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1 of 1 Enterprise App Modernization reviews are 5 stars

$200,000 – $999,999 avg. project cost

Enterprise App Modernization PROJECT HIGHLIGHT

Staff Augmentation for Software Development Company
5.0 — littlecode supplements a software company's development capabilities. They're tasked with helping develop the UI/UX of a QA test strand software for an end client. Read more
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Industry Experience

Littlecode has demonstrated notable expertise in the IT Services, Software, and Energy & Natural Resources industries. Feedback highlights their strong communication skills, technical knowledge, and ability to meet deadlines consistently. In IT Services, clients appreciated their integration flexibility and coding standards, while in Software, they excelled in collaboration and adapting to project demands. The Energy sector feedback emphasizes their capability in developing specialized SaaS solutions. Overall, Littlecode is well-suited for projects requiring agile development and technical competence across these fields.
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IT Services Software Energy & natural resources Consumer Products

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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently highlight LittleCode's exceptional value for money, noting their competitive pricing and high-quality service. One client emphasized that their project was executed on time with a "good value for cost," while another remarked on how the pricing fit their budget perfectly. Overall, the sentiment is overwhelmingly positive, with clients appreciating the alignment of values and the professional expertise demonstrated by LittleCode, reinforcing their reputation as a cost-effective partner for software development.
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Zagreb, Croatia

Strojarska cesta 20
Zagreb, Croatia 10000
10 - 15

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Intellexi

5.0 8 reviews

$25,000+

$25 - $49 / hr

10 - 49

Zagreb, Croatia

Services provided

50% Enterprise App Modernization

30% Custom Software Development

10% AI Development +1 service

10% IoT Development

Intellexi is a software development company known for delivering high-quality, tailored software solutions across various industries, including finance, telecommunications, and IT services. The reviews indicate that Intellexi is highly regarded for its technical expertise, reliability, and professionalism, with approximately 90% of clients praising their timely delivery and strong project management. The company's adaptability and focus on continuous improvement are frequently highlighted by clients.

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Reviews mention Proactive
The feedback regarding Intellexi's proactive approach is overwhelmingly positive. Clients highlighted their project management team's exceptional proactivity, noting their ability to anticipate risks and suggest effective mitigation strategies. One client emphasized that Intellexi's project manager consistently delivered on time and responded adeptly to evolving project needs, demonstrating flexibility amidst scope changes. Overall, the sentiment reflects a strong appreciation for Intellexi's proactive engagement and commitment to client success.

Solution Modules for Telecommunications Company

5.0 May 15, 2023

Intellexi PM support have been on the highest level. They have executed successfully and on time all required deliverables. Also, their PM has been very proactive, bringing risks and providing suggestions for mitigations.
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Industry Experience

Intellexi has demonstrated expertise in IT Services and Telecommunications, successfully delivering high-quality software solutions across industries including finance, energy, aviation, and telecom. Clients praised their technical skills, strong project management, and seamless integration into existing teams. Overall sentiment is positive, highlighting their responsiveness and solution-oriented approach. Notably, their adaptability and commitment to joint success make them a strong candidate for projects requiring rigorous digital transformation and system integration.
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IT Services Telecommunications

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Average Project Cost Breakdown

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

What Clients Have Said
Clients have consistently highlighted Intellexi's competitive pricing and strong value for money. One project director noted that their pricing fit within budget and provided great value for the cost, while another praised the cost efficiency achieved through optimized resource allocation, saving up to 15% against original budgets. Overall, the sentiment reflects satisfaction with the quality of deliverables relative to the costs involved, reinforcing Intellexi's reputation as a reliable partner in software development.
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Austria (2) Croatia (1) Slovenia (1) England (1)

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Ignitech Solutions

5.0 1 review

Undisclosed

Undisclosed

10 - 49

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

50% Custom Software Development

15% API Development +4 services

10% IT Strategy Consulting

5% Business Consulting

5% Corporate Training & Coaching

5% IT Staff Augmentation

Ignitech Solutions is a business and Agile consulting firm that excels in integrating Scrum and Agile practices within organizations. Their reviews are overwhelmingly positive, highlighting impressive culture alignment, on-time delivery, and exceptional project management. Notably, 100% of the feedback praised their ability to improve communication and organizational structure, leading to higher project success rates.

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Industry Experience

Ignitech Solutions has received praise for its expertise in the consulting industry, particularly in Agile and Scrum methodologies. Clients highlight their strengths in project management, adaptability, communication, and fostering a collaborative culture. The successful outcomes from projects, including improved organizational structure and stakeholder satisfaction, indicate Ignitech's impactful contributions. Overall sentiment is highly positive, making them a strong contender for consulting projects, particularly for organizations looking to enhance their project management practices.
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Consulting

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Average Project Cost Breakdown

What Clients Have Said
Clients have consistently praised Ignitech Solutions for providing good value for cost. One review highlighted their selection due to 'good value for cost' alongside high ratings and cultural fit. The company's ability to deliver projects on time while maintaining flexibility and responsiveness has contributed to a positive perception of their pricing. Overall, the sentiment reflects satisfaction with the balance of cost and quality of service, reinforcing their reputation as a cost-effective partner.
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CROZ

Not yet reviewed

$50,000+

Undisclosed

50 - 249

Zagreb, Croatia

Services provided

30% Enterprise App Modernization

30% Cloud Consulting & SI

25% BI & Big Data Consulting & SI +2 services

10% IT Managed Services

5% IT Strategy Consulting

CROZ is an Enterprise App Modernization company located in Zagreb, Croatia. Their services include Enterprise App Modernization and cloud consulting & SI.
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Shard Labs

5.0 1 review

$1,000+

$25 - $49 / hr

2 - 9

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

30% Blockchain

30% Custom Software Development +1 service

30% Web Development

Shard Labs offers comprehensive blockchain development services, specializing in migrating and onboarding users to new blockchain platforms, implementing backend features, and creating new frontend designs. The reviews consistently highlight Shard Labs' expertise in blockchain technology, their exceptional problem-solving skills, and their effective project management and communication, resulting in a highly satisfactory client experience.

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Zagreb, Croatia

Palinovečka 49
Zagreb, Croatia 10110
2 - 5

+385996827754

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3mi Lab

Not yet reviewed

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

20% Enterprise App Modernization

20% API Development

20% Custom Software Development +3 services

20% Web Development

10% Blockchain

10% Business Consulting

3mi Lab is a custom software development firm. They offer Custom Software Development and Web Development and were launched in 2018. The company is in Zagreb, Croatia.
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TIS Grupa

Not yet reviewed

$5,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Services provided

20% Enterprise App Modernization

20% Custom Software Development

10% AI Development +8 services

10% Other IT Consulting and SI

10% Web Design

5% Application Testing

5% ECM Consulting and SI

5% ERP Consulting and SI

5% IT Managed Services

5% Mobile App Development

5% Web Development

Based in Zagreb, Croatia, TIS Grupa is a custom software development firm. They specialize in Custom Software Development and Enterprise App Modernization.
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Solvership

Not yet reviewed

$5,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

25% BI & Big Data Consulting & SI

20% Other IT Consulting and SI +5 services

10% AI Consulting

10% AI Development

10% Generative AI

10% Other Application Development

5% Application Management & Support

Solvership is a business intelligence company established in 2001. Based in Zagreb, Croatia and London, England, the team provides BI & big data consulting & SI and other IT consulting and SI.
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BISS d.o.o.

Not yet reviewed

$25,000+

Undisclosed

50 - 249

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

50% Custom Software Development

25% Mobile App Development +3 services

5% AI Development

5% Application Testing

5% IoT Development

BISS d.o.o., a custom software development firm, was launched in 2009. The agency provides Custom Software Development and Mobile App Development.
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Kodilion

Not yet reviewed

$5,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

30% Custom Software Development

11% Cloud Consulting & SI +8 services

10% IT Managed Services

9% Web Development

5% Application Management & Support

5% Application Testing

5% IT Staff Augmentation

5% IT Strategy Consulting

5% Mobile App Development

5% Other Application Development

Kodilion, a custom software development firm, is based in Zagreb, Croatia and Zagreb, Croatia. They specialize in Custom Software Development and cloud consulting & SI and were established in 2021.
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Opto Software

Not yet reviewed

$5,000+

$100 - $149 / hr

2 - 9

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

30% Web Development

20% Advertising +2 services

20% E-Commerce Development

20% Mobile App Development

Launched in 2000, Opto Software is a small Zagreb, Croatia-based website development company. Their team offers Web Development and Advertising.
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Portobyte

Not yet reviewed

Undisclosed

$200 - $300 / hr

Freelancer

Zagreb, Croatia

Services provided

30% Enterprise App Modernization

20% Web Development

10% Custom Software Development +4 services

10% IT Strategy Consulting

10% Low/No Code Development

10% Other Application Development

10% Other IT Consulting and SI

Web development firm Portobyte was launched in 2022. The team offers Web Development and Enterprise App Modernization.
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Flyntech

Not yet reviewed

$5,000+

$25 - $49 / hr

Freelancer

Velika Gorica, Croatia

Services provided

20% Enterprise App Modernization

20% API Development

20% Custom Software Development +2 services

20% Mobile App Development

20% Web Development

Flyntech is a software development firm. They are based in Velika Gorica, Croatia and have small team of experts. Their services include Custom Software Development and Web Development.
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CyberQode

Not yet reviewed

$1,000+

$50 - $99 / hr

2 - 9

Zagreb, Croatia

Services provided

10% Enterprise App Modernization

40% Custom Software Development

20% Web Development +3 services

15% Mobile App Development

10% API Development

5% Application Testing

CyberQode is a custom software development firm. The Zagreb, Croatia-based firm was founded in 2021. Their services include Custom Software Development and Web Development.
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At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

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

1 Notch

2 Five, an Endava company

3 Codebooq

4 Serengeti

5 Leapwise

6 littlecode

7 Intellexi

8 Thespian

9 LeverUP

10 Ignitech Solutions

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)

Focus accounts for a company’s specialization within a certain service.

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 10 Zagreb Legacy Modernization Services

Notch

$50,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Ability to deliver

34.5/40.0

17.4/20 Reviews

10/10 Clients & Experience

7.1/10 Market Presence

Service focus

15% Enterprise App Modernization

85% Other

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Five, an Endava company

$10,000+

$100 - $149 / hr

250 - 999

Zagreb, Croatia

Ability to deliver

32.4/40.0

15.8/20 Reviews

9.2/10 Clients & Experience

7.3/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Codebooq

$10,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

30.1/40.0

16.6/20 Reviews

8.1/10 Clients & Experience

5.4/10 Market Presence

Service focus

30% Enterprise App Modernization

70% Other

View Profile Visit Website
Serengeti

Undisclosed

$25 - $49 / hr

50 - 249

Zagreb, Croatia

Ability to deliver

32.3/40.0

16.2/20 Reviews

8.4/10 Clients & Experience

7.7/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Leapwise

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

32.2/40.0

16.8/20 Reviews

7.7/10 Clients & Experience

7.6/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
littlecode

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

28.9/40.0

16.6/20 Reviews

6.7/10 Clients & Experience

5.6/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Intellexi

$25,000+

$25 - $49 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

21.9/40.0

17/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

50% Enterprise App Modernization

50% Other

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Thespian

$10,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

25.9/40.0

17.4/20 Reviews

3.3/10 Clients & Experience

5.2/10 Market Presence

Service focus

15% Enterprise App Modernization

85% Other

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LeverUP

$10,000+

$100 - $149 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

24.2/40.0

17.8/20 Reviews

1/10 Clients & Experience

5.3/10 Market Presence

Service focus

15% Enterprise App Modernization

85% Other

View Profile Visit Website
Ignitech Solutions

Undisclosed

Undisclosed

10 - 49

Zagreb, Croatia

Ability to deliver

20.2/40.0

16.2/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
CROZ

$50,000+

Undisclosed

50 - 249

Zagreb, Croatia

Ability to deliver

9.5/40.0

0/20 Reviews

3.8/10 Clients & Experience

5.7/10 Market Presence

Service focus

30% Enterprise App Modernization

70% Other

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Shard Labs

$1,000+

$25 - $49 / hr

2 - 9

Zagreb, Croatia

Ability to deliver

10.4/40.0

0/20 Reviews

5.1/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
3mi Lab

$25,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

7.1/40.0

0/20 Reviews

3.1/10 Clients & Experience

4/10 Market Presence

Service focus

20% Enterprise App Modernization

80% Other

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TIS Grupa

$5,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

20% Enterprise App Modernization

80% Other

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Solvership

$5,000+

$50 - $99 / hr

50 - 249

Zagreb, Croatia

Ability to deliver

5.6/40.0

0/20 Reviews

0/10 Clients & Experience

5.6/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

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BISS d.o.o.

$25,000+

Undisclosed

50 - 249

Zagreb, Croatia

Ability to deliver

5.2/40.0

0/20 Reviews

0/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Kodilion

$5,000+

$50 - $99 / hr

10 - 49

Zagreb, Croatia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Opto Software

$5,000+

$100 - $149 / hr

2 - 9

Zagreb, Croatia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

View Profile Visit Website
Portobyte

Undisclosed

$200 - $300 / hr

Freelancer

Zagreb, Croatia

Ability to deliver

5.5/40.0

0/20 Reviews

1.5/10 Clients & Experience

4/10 Market Presence

Service focus

30% Enterprise App Modernization

70% Other

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Flyntech

$5,000+

$25 - $49 / hr

Freelancer

Velika Gorica, Croatia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% Enterprise App Modernization

80% Other

View Profile Visit Website
CyberQode

$1,000+

$50 - $99 / hr

2 - 9

Zagreb, Croatia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Enterprise App Modernization

90% Other

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OmnifIT d.o.o.

$5,000+

$50 - $99 / hr

2 - 9

Varaždin, Croatia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

25% Enterprise App Modernization

75% Other

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Top Application Modernization Services in Zagreb

List of the Top Zagreb Legacy Modernization Services

Reviews mention Collaborative

Custom Software Development for Crop Insurance Company

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviews mention Open to feedback

Custom Software Dev for National Dog Breeding Association

Average Project Cost Breakdown

What Clients Have Said

Thespian is very responsive

Reviews mention Reliable

Cloud Support & Maintenance for Telecommunications Company

Reviewed 2 times in the past 6 months

Industry Experience

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Custom Software Development powered by Zendify

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviews mention Well-organized projects

Web & Mobile App Dev for Gardening Company

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviews mention Timely

IT Staff Augmentation for IT Services Company

Custom CRM Development for Software Company

Industry Experience

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Reviews mention Timely

Software Development for Cybersecurity Company

Custom Software Development for MVNOs Provider

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Staff Augmentation for Software Development Company

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviews mention Proactive

Solution Modules for Telecommunications Company

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

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List of the Top 10 Zagreb Legacy Modernization Services