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Top Internet of Things Companies in Cardiff

Ratings Updated: June 4, 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 79 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 an Internet of Things Development company specializing in IoT App Development and custom healthcare software solutions. Praised for their seamless integration and strong team continuity, 100% of reviewers commend their reliable and timely delivery, particularly highlighting their IoT integrations for telehealth. Clients appreciate their flexibility and transparency, enhancing project success and collaboration.

    See all 79 projects
    2 of 2 reviews are 5 stars
    Unknown avg. project cost

    Reviewed 2 times in the past 6 months

    Recent reviews for Yalantis reflect a strong overall sentiment, highlighting their collaborative approach and effective project management. Clients praised their ability to meet deadlines and provide essential engineering support, with one noting, "Yalantis is very easy to work with, collaborative, and communicative." Another client emphasized their proactive efforts, stating, "Yalantis always looked to go above and beyond." There were no significant areas for improvement mentioned, indicating high client satisfaction.
    Read 2 Recent Reviews
    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, advertising & marketing, real estate, and information technology. In healthcare, clients praised their ability to deliver reliable, user-friendly solutions that enhance patient engagement and data management. In advertising & marketing, their optimization skills were highlighted for improving platform performance. The overall sentiment is positive, with clients consistently noting Yalantis's professionalism, responsiveness, and strong project management, making them a suitable partner for businesses in need of quality software development across these sectors.

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    Select Industry to see insights

    Software Supply Chain, Logistics, and Transport Healthcare eCommerce 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 Information technology

    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

    Client feedback regarding Yalantis highlights a consistent sentiment of good value for money. Many clients noted that Yalantis' pricing matched their budgets while delivering high-quality results. For instance, one client emphasized their excellent quality-to-price ratio, stating, 'Their pricing is excellent, and we haven’t had to sacrifice the quality of the output for the price.' Overall, clients feel they receive strong expertise and effective communication, contributing to a positive perception of value despite some noting higher costs compared to local options.
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    Cogniteq Logotype

    Cogniteq

    4.9 44 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 prominent IoT development company specializing in IoT app development and IoT solutions, delivering high-quality cyber-physical software development. The reviews reveal a 100% positive feedback rate, highlighting their exceptional communication, timely delivery, and expert IoT consulting. Clients commend their ability to integrate seamlessly with internal teams and appreciate their flexible team scaling and IoT infrastructure expertise.

    See all 44 projects

    Reviews mention Helpful

    Clients have expressed high satisfaction with Cogniteq's helpfulness, noting their responsive communication and eagerness to assist. One project manager highlighted the team's professionalism and quick resolution of issues, stating, 'They were always available and happy to answer any questions.' Similarly, a CEO acknowledged their dedication, remarking, 'The point of contact is very friendly, helpful, and dedicated to genuinely helping us.' Overall, feedback reflects a strong sentiment of appreciation for the team's supportive and collaborative approach.
    • Web Dev for Design & Communications Agency
      4.5 Mar 9, 2023

      We are very satisfied with the management and quality of the team’s work, their expertise and the fast response times. They were always available and happy to answer any questions we had and helped with other topics such as web hosting too. All the specialists that we communicated with were very professional and helpful. We felt like we were in good hands!

      Read Full Review
    • iOS & Android App Dev for Career Platform Startup
      5.0 Feb 8, 2021

      The workflow was effective and efficient and the communication was great. Their feedback about how each solution affects the cost and quality was very helpful to us as a startup. We have a great relation with Cogniteq: it feels like we are one team. The Cogniteq-team is competent, proactive, flexible and they show great dedication to the project.

      Read Full Review
    • Web & App Dev for Product Development Agency
      5.0 Jan 22, 2021

      Aside from the quality engineers, our point of contact is very friendly, helpful, understanding and dedicated to genuinely helping us. Communication is excellent and they never drop the ball. Any criticisms, or request for improvement are always met with a positive attitude and implemented. This makes coordination a pleasure.

      Read Full Review
    Read All Reviews
    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 Cogniteq highlight a strong overall sentiment, with clients praising their professionalism, effective communication, and timely project delivery. For instance, the Head of Operations at Lindcom noted the team's proactive engagement and swift responses to challenges. Similarly, the CMO of Zipp Labs emphasized Cogniteq's flexibility and solution-oriented approach, contributing to successful project outcomes. Both clients expressed satisfaction with the value provided relative to cost, indicating a solid partnership for ongoing development.
    Read 2 Recent Reviews
    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
    Read 3 Reviews

    View projects from:

    Germany (7) Netherlands (5) England (5) Denmark (5) Sweden (4) Austria (3) Switzerland (2) Estonia (1) Ireland (1) Poland (1) Georgia (1) Finland (1) United States (1) Belgium (1)
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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.

    Read more
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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
    View Profile
  • 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

    Bynea, Wales

    21 Heol-Y-bwlch
    Bynea, Wales SA14 9ST

    6 - 9

    +44 7414 579579

    See All Locations (2)
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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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