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Top Internet of Things Companies in Cardiff

Ratings Updated: March 15, 2026
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0 Leaders 3 Contenders

3 Companies

Country: Wales
City: Cardiff

List of the Top Cardiff IoT Developers

  • Featured

    What are Featured Providers?

    Yalantis Logotype

    Yalantis

    4.8 78 reviews
    Premier Verified
    $50,000+
    $50 - $99 / hr
    250 - 999
    Serves Cardiff, Wales

    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 distinguished IoT App Development company, noted for its outstanding custom healthcare software solutions. With 100% positive feedback, clients commend their seamless integration, consistent team continuity, and ability to deliver complex IoT integrations under tight deadlines. Yalantis is praised for its reliable outcomes, professionalism, and role as a strategic tech partner, making it an ideal choice for IoT solutions.

    See all 78 projects

    Reviews mention Well-executed projects

    Clients have consistently praised Yalantis for their well-executed projects, noting their impressive speed and quality of delivery. One client highlighted that Yalantis completed the alpha version of a product in just 10 weeks, far exceeding competitors' timelines. The team is commended for their adaptability to changing requirements and effective project management, with extensive documentation supporting their work. Overall, the sentiment reflects high satisfaction with Yalantis' performance, emphasizing their excellent quality-to-price ratio.
    • Flutter-Based Mobile App Design & Dev for Nonprofit
      5.0 Nov 22, 2023

      Moreover, we’ve noticed a significant decrease in bugs and problems — the code is truly well done, and the Yalantis team has been thorough. Once we’ve nailed down what we’re truly trying to solve, they’ve executed well. Yalantis’ biggest strength is their ability to take information from us — a non-technical organization — and translate it into tasks. On top of that, their complete execution and quality of work are phenomenal.

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    1 of 1 IoT Development reviews are 5 stars
    $1,000,000 – $9,999,999 avg. project cost

    IoT Development PROJECT HIGHLIGHT

    IoT & Mobile App Development for IoT Hardware & Software Co

    5.0 — Yalantis provided development services for an IoT hardware and software company. The team extended the client's network and app version 2.0 and offered iOS and Android development, QA, and project Read more
    Read 1 Review

    Industry Experience

    Yalantis has demonstrated expertise across various industries, including healthcare, eCommerce, advertising & marketing, and information technology. Clients commend their strong project management, effective communication, and adaptability, particularly in the healthcare sector, where they excelled in custom software development and real-time integration. In eCommerce and advertising, their ability to deliver optimized solutions under tight deadlines has been noted. Overall, Yalantis is well-suited for organizations seeking reliable tech partnerships in these sectors.

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    Select Industry to see insights

    Software Supply Chain, Logistics, and Transport Healthcare eCommerce Information technology Engineering Real estate Food & Beverage Other Industry Medical Education IT Services Non-profit Consumer Products Logistics & Supply Chain Nonprofit Manufacturing Consulting Financial services Hospitality & leisure Automotive Business services Food & Beverages Arts, entertainment & music Telecommunications Energy & natural resources Media Advertising & marketing Other industries

    View projects from:

    United States (44) 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)
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    Indeema Logotype

    Indeema

    5.0 77 reviews
    Premier Verified
    $50,000+
    $50 - $99 / hr
    50 - 249
    Serves Cardiff, Wales

    Services provided

    40% IoT Development
    20% AI Development
    10% AI Agents +3 services
    10% Custom Software Development
    10% Product Design
    10% UX/UI Design

    Indeema is a company specializing in IoT development and consulting services, offering expertise in IoT app development, device development, and integration. Feedback from their clients is overwhelmingly positive, with 100% of reviews highlighting their technical expertise, effective project management, and commitment to client satisfaction. Clients consistently commend Indeema for its proactive approach and seamless communication, with no significant areas for improvement noted.

    See all 77 projects

    Reviews mention Personable

    The feedback highlights Indeema's personable approach, with clients appreciating their commitment and engagement. One client noted, "They are amazing to work with hands-down," emphasizing their responsiveness and attentiveness to needs. Another remarked on their "personal approach to engaging with our team," which contributed to a positive working relationship. Overall, the sentiment is highly favorable, reflecting a strong connection and satisfaction with Indeema's team dynamics and project involvement.
    • Engineering Services for Medical Services Company
      5.0 Feb 9, 2026

      Their team is extremely responsive and attentive to everyone of our needs. They consistently engaged with us, followed through on every commitment that they made, and delivered regularly ahead of schedule. They are amazing to work with hands-down. Their commitment to the project and their personal approach to engaging with our team. They really are great people, and the quality of their work was phenomenal.

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    Industry Experience

    Indeema Software has demonstrated significant expertise across a variety of industries including Consumer Products & Services, Financial Services, Advertising & Marketing, and Education. Clients consistently praise their project management, responsiveness, and technical proficiency, particularly in developing complex applications and hardware solutions. The overall sentiment is highly positive, highlighting their innovative approach and ability to meet project requirements effectively. These attributes make them particularly well-suited for projects in tech-driven sectors, healthcare, and consumer services.

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    Select Industry to see insights

    Engineering Energy & natural resources Retail Agriculture Consumer Products Nonprofit Sports Restaurants Research Consulting IT Services Other Industry Business services Arts, entertainment & music Software Other industries Education Manufacturing Healthcare Information technology Construction Financial services Advertising & marketing Consumer products & services

    Average Project Cost Breakdown

    $10,000 to $49,000 (25) $50,000 to $199,999 (22) $200,000 to $999,999 (9) Less than $10,000 (7) $1,000,000 to $9,999,999 (2)

    What Clients Have Said

    Clients have expressed strong satisfaction with the overall cost and value for money provided by the companies. For instance, a client noted that Perfsol delivered high-quality work at competitive prices, emphasizing their transparent communication and responsiveness. Another client appreciated Vakoms for being flexible and providing great value, stating they delivered on time and aligned well with budget expectations. Overall, feedback indicates that both companies offer excellent value relative to their pricing, with many clients highlighting their reliability and professionalism.
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    View projects from:

    United States (22) Ukraine (9) Israel (6) Switzerland (6) Germany (4) England (3) Denmark (3) Sweden (2) Belgium (2) Canada (2) Australia (2) Netherlands (2) Cyprus (1) New Zealand (1) Lebanon (1) United Arab Emirates (1) Italy (1) Hungary (1) Austria (1)
    View Profile Visit Website
    Cogniteq Logotype

    Cogniteq

    4.9 42 reviews
    Premier Verified
    $10,000+
    $50 - $99 / hr
    50 - 249
    Serves Cardiff, Wales

    Services provided

    10% IoT Development
    75% Mobile App Development
    10% Web Development +1 service
    5% Custom Software Development

    Cogniteq is a distinguished company specializing in IoT Solutions, IoT App Development, and IoT Integration. With approximately 100% of reviewers highlighting their proficiency in IoT projects, clients commend their high-quality coding, effective project management, and excellent communication. The firm is noted for its capability to align with client values and resolve technical challenges efficiently, exemplifying their expertise in cyber-physical software development.

    See all 42 projects

    Reviews mention Timely

    Overall, client sentiment regarding Cogniteq's timeliness is highly positive. Clients consistently noted that Cogniteq delivered projects on time and adhered to deadlines. For instance, one client praised their 'respect for timing and deadlines' while another highlighted their 'impressive consistency in meeting deadlines.' Additionally, a client mentioned that all deliverables were completed as agreed, reflecting a structured and efficient project management approach. These testimonials emphasize Cogniteq's reliability and commitment to timely project execution.
    • UX/UI Design Staff Augmentation for BI Consulting Company
      5.0 Sep 9, 2024

      They delivered on time and were very active in communication.

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    • Custom Software Dev & UX Design for Audio Intelligence Company
      4.0 Jun 26, 2024

      Standard scrum adjusted for small scale, scoping priorities and planning docs exchanged, delivery very timely - Errors and CRs reported via Slack etc. - quick turn around.

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    • Staff Aug & Software Dev for Ad Insertion Platform Provider
      5.0 Mar 15, 2024

      Their work is done on time and of a very high quality. Negotiations were friendly, efficient and unbureaucratic.

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    • Custom Software Development for Healthcare IT Company
      5.0 Jan 17, 2024

      Delivery on time, and budget.

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    • Mobile App Dev for Digital Product Dev Co
      5.0 Jan 16, 2024

      Cogniteq demonstrated excellent project management throughout the project. They consistently met deadlines, ensuring timely delivery of all work items.

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    2 of 2 reviews are 5 stars
    Unknown avg. project cost

    Reviewed 2 times in the past 6 months

    In the last six months, client feedback on Cogniteq highlights their effective project management and high-quality deliverables. One CEO noted their backend developer's proactive communication and alignment with project requirements, while another client praised Cogniteq's timely delivery and thorough project analysis. Overall sentiment is overwhelmingly positive, with clients appreciating the professionalism and competence of the team, and no areas for improvement were identified.
    Read 2 Recent Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (7) $200,000 to $999,999 (4) $50,000 to $199,999 (3) Less than $10,000 (1)

    What Clients Have Said

    Client feedback on Cogniteq highlights a consistent sentiment of good value for money and competitive pricing. Many clients noted that Cogniteq's pricing fit their budgets while providing high-quality deliverables. For instance, one client mentioned, "Good value for cost," while another highlighted their "excellent price-to-quality ratio." Overall, clients expressed satisfaction with the cost-effectiveness of Cogniteq's services, often remarking on the swift delivery and professional communication that accompanied their projects.
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    More responsive than most other service providers

    Cogniteq is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
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  • Cloudavian Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Cardiff, Wales

    Services provided

    25% IoT Development
    50% Cloud Consulting & SI
    25% BI & Big Data Consulting & SI

    Cloudavian, a cloud consulting & SI company, is headquartered in Cardiff, Wales. Founded in 2018, the team offers cloud consulting & SI and BI & big data consulting & SI.

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  • Wales Interactive Services Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Pencoed, Wales

    Services provided

    50% IoT Development
    50% AR/VR Development

    Wales Interactive Services, a small AR/VR development and IoT development company, is located in Pencoed, Wales. The team specializes in AR/VR development and IoT development.

    Read more
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  • Adex International Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Bynea, Wales

    Services provided

    20% IoT Development
    30% Cloud Consulting & SI
    20% Custom Software Development +2 services
    20% IT Strategy Consulting
    10% Business Consulting

    Adex International is a cloud consulting & SI company. In Lalitpur, Nepal and Bynea, Wales, the firm was established in 2018. Their services include cloud consulting & SI and IT strategy consulting.

    Read more
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List of the Top Cardiff IoT Developers

  1. Cloudavian Logotype

    Cloudavian

    $1,000+
    $50 - $99 / hr
    2 - 9
    Cardiff, Wales

    Ability to deliver

    6/40.0
    0/20 Reviews
    1.4/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    25% IoT Development
    75% Other
    View Profile Visit Website
  2. Wales Interactive Services Logotype

    Wales Interactive Services

    Undisclosed
    Undisclosed
    2 - 9
    Pencoed, Wales

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    50% IoT Development
    50% Other
    View Profile Visit Website
  3. Adex International Logotype

    Adex International

    $1,000+
    $25 - $49 / hr
    10 - 49
    Bynea, Wales

    Ability to deliver

    4.9/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    20% IoT Development
    80% Other
    View Profile Visit Website

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