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Top Internet of Things Companies in Cardiff

Ratings Updated: December 25, 2025
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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 77 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 IoT development company specializing in custom healthcare software solutions. They have consistently received positive feedback, with 100% of reviewers noting their reliable results and seamless integration into client processes. Yalantis excels in IoT integrations, enabling real-time health data collection, and is praised for their flexibility, transparency, and strong team continuity.

    See all 77 projects

    Reviews mention Patient

    Overall sentiment regarding Yalantis reflects a positive experience characterized by their patience and professionalism. Clients appreciated the team's willingness to clarify project details and provide constructive feedback. One client noted, "The team is patient and professional," while another highlighted their availability and support, stating, "Yalantis has always been there for me, and they’re very patient." This consistent feedback underscores their commitment to client satisfaction throughout the project lifecycle.
    • 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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    • iOS App & CMS Dev for Kids Activity and Event Platform
      5.0 Aug 27, 2018

      The team is patient and professional. The scenario sheet was very detailed and we had a feedback sheet to discuss issues that could be a bit vague.

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    • App Dev for Fashion Social Network App
      5.0 Jul 28, 2017

      I admire their communication. Yalantis was always available during weekends and at night. I am the type of person who thinks out loud, and I want to discuss my ideas. We communicate over email, Skype, and Slack. Yalantis has always been there for me, and they’re very patient.

      Read Full Review
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    2 of 2 reviews are 5 stars
    1 new review for IoT Development services
    $1,000,000 – $9,999,999 avg. project cost

    Reviewed 2 times in the past 6 months

    Recent reviews of Yalantis highlight a strong overall sentiment, emphasizing their effective project management and seamless integration with client teams. Clients appreciate their adaptability and responsiveness, with one noting a rapid delivery of a telemedicine module within ten days. Another client praised Yalantis as a reliable partner over seven years, commending their continuity of experienced staff and alignment with company values. Overall, clients express satisfaction with Yalantis's commitment to delivering quality solutions and their collaborative approach.
    Read 2 Recent Reviews

    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

    Clients consistently commend Yalantis for their exceptional value for money, noting that their pricing aligns well with project budgets. For instance, one client mentioned that Yalantis delivered high-quality work at a fraction of the cost compared to U.S. vendors. Another highlighted their ability to adapt quickly to changing requirements while maintaining budget clarity. Overall, the sentiment reflects satisfaction with the balance of cost and quality, with many clients expressing that Yalantis serves as a reliable and cost-effective partner.
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    View projects from:

    United States (44) Israel (3) China (3) Spain (2) Australia (2) England (2) Canada (2) Estonia (2) Sweden (2) Kuwait (1) Poland (1) Qatar (1) Norway (1) Nigeria (1) Switzerland (1) United Arab Emirates (1) Denmark (1) India (1)
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    Indeema Logotype

    Indeema

    5.0 75 reviews
    Premier Verified
    $50,000+
    $50 - $99 / hr
    50 - 249
    Serves Cardiff, Wales

    Services provided

    60% IoT Development
    20% AI Development
    10% AI Agents +1 service
    10% Custom Software Development

    Indeema Software Inc. is a specialized firm offering Internet of Things Development, IoT App Development, and IoT Solutions. The reviews indicate an 85% positive sentiment, with clients praising their technical expertise, flexibility, and effective communication. Several reviews highlight their seamless IoT integration and prototyping solutions, although some mention budgetary and timeline challenges. Overall, Indeema stands out for its commitment to client satisfaction and innovative IoT Consulting services.

    See all 75 projects
    5 of 5 reviews are 5 stars
    1 new review for IoT Development services
    $50,000 – $199,999 avg. project cost

    Reviewed 5 times in the past 6 months

    In the last six months, client reviews for Indeema highlight exceptional technical expertise and strong project management. Clients praised their proactive communication and ability to adapt to changing requirements. Specific feedback noted the successful delivery of reliable firmware and hardware solutions for UAV systems, significantly improving development timelines. Overall sentiment is highly positive, with no major areas for improvement identified, indicating a strong alignment of values and effective collaboration.
    Read 5 Recent Reviews
    7 of 7 IoT Development reviews are 5 stars
    1 new review for IoT Development in past 6 months
    $50,000 – $199,999 avg. project cost

    IoT Development PROJECT HIGHLIGHT

    Custom Hardware Development for Drone Solutions Company

    5.0 — Indeema Software Inc. provides custom hardware design and development services for a drone solutions company. The team's work includes hardware design, firmware development, system integration, and Read more
    Read 7 Reviews

    More responsive than most other service providers

    Indeema is responsive

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

    View projects from:

    United States (21) Ukraine (9) Israel (6) Switzerland (6) Germany (4) England (3) Denmark (3) Sweden (2) Netherlands (2) Australia (2) Canada (2) Belgium (2) Italy (1) Lebanon (1) New Zealand (1) Hungary (1) United Arab Emirates (1) Austria (1)
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    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
    4 of 4 reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Reviewed 4 times in the past 6 months

    Recent reviews of Cogniteq reflect a strong overall sentiment, highlighting their effective communication, timely delivery, and high-quality work. Clients praised their project management and responsiveness, with one CEO noting the 'easy and straightforward communication' and another highlighting their 'professional, competent, and creative' resources. Additionally, all reviewers expressed satisfaction with the outcomes and reported no significant areas for improvement, indicating a consistent ability to meet client expectations.
    Read 4 Recent Reviews

    Industry Experience

    Cogniteq has garnered positive feedback across various industries, including Software, Information Technology, Healthcare, and Business Services. They are praised for their technical expertise, particularly in mobile development and IoT solutions, with clients highlighting their responsiveness, project management, and high-quality deliverables. Overall sentiment is highly favorable, particularly in sectors like Software and Healthcare, where their services have significantly contributed to project successes.

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    Select Industry to see insights

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

    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.
    Read All Reviews

    Ząbki, Poland

    97 Piłsudskiego
    Ząbki, Poland 05-091

    50 - 75

    +48 614297108

    See All Locations (2)
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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

    Cardiff, Wales

    Wellington Street
    Cardiff, Wales CF11

    6 - 9

    +44330 1331225

    See All Locations (1)
    View Profile
  • 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

    Pencoed, Wales

    Pencoed Technology Park, Pencoed
    Pencoed, Wales CF35 5AQ

    2 - 5

    See All Locations (1)
    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)
    View Profile

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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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