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Top Internet of Things Companies in Cardiff

Ratings Updated: May 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 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 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 79 projects

    Reviews mention Honest

    Clients express a strong sentiment of honesty regarding Yalantis, highlighting their transparent approach to project management and budgeting. One client noted, "They weren’t just trying to take the money" and appreciated how Yalantis guided them in understanding project costs and expectations. This straightforward communication helped prevent unnecessary budget inflation. Clients recommend trusting Yalantis, as they prioritize the client's best interests, fostering a collaborative atmosphere throughout the development process.
    • Custom Software Development for Telemedicine Company
      5.0 Jun 13, 2024

      I like their honesty. They weren’t just trying to take the money. Yalantis understands what we can and can’t do, what it’ll cost, and if some things aren’t worthwhile. They always have a purpose for everything and ask why we’re trying to do something or what outcome we expect, which helps us cut back on budget.

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    Read All 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

    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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    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)
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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 an IoT App Development company specializing in IoT Solutions and IoT Integration for diverse sectors, including energy management and emergency vehicle systems. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their effective communication, extensive IoT expertise, and timely delivery. Clients appreciate their ability to collaborate closely and adapt to project needs.

    See all 44 projects

    Reviews mention Dedicated

    The feedback reflects a highly positive sentiment regarding Cogniteq's dedication to the project. Clients noted that the team demonstrated great commitment, proactivity, and flexibility throughout the development process. One client specifically highlighted that Cogniteq's team felt like an integral part of their own, emphasizing their dedication and pride in performance. Overall, the collaboration was described as effective, with timely delivery within budget, indicating a strong partnership and dedication to client success.
    • 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. On the engineering side, their team members are very dedicated and hard-working. Even though they are not directly employed by us, they really care for our projects, which is fantastic (and rare).

      Read Full Review
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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

    In the past six months, Cogniteq has received positive feedback from clients, highlighting their professionalism, clear communication, and timely project delivery. A client from Lindcom praised their proactive project management and engagement, noting significant platform growth and feature development. Zipp Labs commended Cogniteq's flexibility and expertise, particularly in app development, resulting in successful project milestones. Overall, the sentiment is highly favorable, with clients expressing satisfaction and no significant areas for improvement identified.
    Read 2 Recent Reviews

    Industry Experience

    Cogniteq has demonstrated expertise across various industries, including Consumer Products, Information Technology, Automotive, and Advertising. Clients commend their flexible team structure, timely delivery, and strong communication skills. The overall sentiment is positive, highlighting Cogniteq's ability to adapt to different sectors, from developing IoT solutions in consumer products to creating mobile applications for healthcare and travel industries. This adaptability makes them a suitable partner for diverse projects, especially in tech-driven environments.

    Read All Reviews

    Select Industry to see insights

    Business services Consulting IT Services Advertising & marketing Medical Engineering Healthcare Automotive Design Telecommunications Pharmaceuticals Media Software Consumer products & services Information technology

    Average Project Cost Breakdown

    $10,000 to $49,000 (7) $50,000 to $199,999 (5) $200,000 to $999,999 (4) Less than $10,000 (1)

    What Clients Have Said

    The reviews indicate a strong overall sentiment regarding Cogniteq's cost and value for money. Multiple clients noted that Cogniteq offers 'good value for cost' and that their pricing fits within project budgets. For instance, one client remarked on their 'great price-to-quality ratio,' while another highlighted their 'flexibility and responsiveness' as key advantages. Overall, clients express high satisfaction with the balance of quality and affordability found in their services.
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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

    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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