Leave a Review For Providers 0 0
  • Post a Project
Home IoT Cardiff

Top Internet of Things Companies in Cardiff

Ratings Updated: April 25, 2026
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust
Get Matched

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 Great project management

    Yalantis has received consistently positive feedback regarding their project management capabilities. Clients highlighted their strong communication skills, adaptability to changing project needs, and proactive risk management. For instance, one client noted their project manager's ability to maintain clear and timely updates, while another praised the team's responsiveness to shifting priorities. Overall, reviewers expressed satisfaction with Yalantis's organized approach, which ensured transparency in scope, timelines, and budgets throughout the project lifecycle.
    • Android Mobile App Development for Education Programs Co
      5.0 Mar 21, 2024

      They'd get great scores from me for project management. From the start, they developed a development strategy and have continued to offer helpful advice. Basecamp and Jira are used for coordination.

      Read Full Review
    • Web App Dev Services for AI Music Search Company
      5.0 Mar 12, 2024

      Project management is their strongest point; they’re great at communicating, and the way they operate is very clear. They achieve our deadlines and let us know when a timeline doesn’t work so we can plan it differently.

      Read Full Review
    • Services Backend & Mobile App Development for Medical Group
      5.0 Mar 8, 2024

      Yalantis has had impeccable project management. Every two weeks, we receive a detailed report on time and cost; we regularly review burndown charts; in 18 months of weekly collaboration, we have had few if any surprises.

      Read Full Review
    • Custom Software Dev for Data Platform
      5.0 Mar 15, 2023

      They were fantastic when it came to project management. Working with Yalantis was a great experience; they never missed a deadline. They consistently delivered good-quality content.

      Read Full Review
    • Technical Assessment for Managment Consulting Company
      5.0 Nov 1, 2022

      Yalantis’ project management was excellent. We communicated via Microsoft Teams.

      Read Full Review
    Read All Reviews
    2 of 2 reviews are 5 stars
    Unknown avg. project cost

    Reviewed 2 times in the past 6 months

    Recent reviews of Yalantis highlight their exceptional project management and technical expertise. Clients praised their proactive approach, with one noting, 'Yalantis always looked to go above and beyond.' Another client appreciated their ability to solve critical issues efficiently and optimize platform performance. Overall sentiment is highly positive, with no significant areas for improvement mentioned, indicating a strong fit for various projects.
    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 highlight Yalantis's competitive pricing and excellent value for money. For instance, one client noted that Yalantis's pricing fit their budget while delivering high-quality work. Another client emphasized that the quality of Yalantis's services justified their costs, stating they received better results compared to more expensive alternatives. Overall, feedback reflects satisfaction with the balance of cost and deliverables, reinforcing Yalantis's reputation as a cost-effective partner in software development.
    Read All Reviews

    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)
    View Profile Visit Website
    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
    3 of 3 reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Reviewed 3 times in the past 6 months

    In the past six months, Cogniteq has received positive feedback for their effective project management and high-quality deliverables. Clients noted their proactive communication and responsiveness, with one stating, "Cogniteq is a consistently professional team that communicates clearly and meets commitments." Another client highlighted their flexibility and solution-oriented approach, stating, "Cogniteq is a flexible partner that is aligned with the business." Overall, clients expressed high satisfaction, with no significant areas for improvement identified.
    Read 3 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

    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

    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)
    View Profile Visit Website
  • 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
    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
    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

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches
tracking image

Why Trust Clutch

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.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

  • In-depth client interviews and ratings
  • Comprehensive project details
  • Market presence
  • Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Ability to deliver
Focus
Clutch Leaders Matrix

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

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

Similar Categories

Related Services

Ruby on Rails in Cardiff Web Developers in Cardiff Software Developers in Cardiff Mobile App Development in Cardiff eCommerce in Cardiff Artificial Intelligence in Cardiff AR/VR in Cardiff
View More

Get personalized agency matches based on your project goals.