Top IoT Development Companies in the UK in May, 2026

<p>WITH a team OF 15+ senior engineers across California, Washington D.C., AND Turkey, we provide custom development, AI-enhanced solutions, staffe <p>AT Horizon Labs, we move fast WITHOUT breaking things-ensuring startups ship scalable, maintainable, AND USER-driven products ON time AND WITHIN <p>Trusted BY startups LIKE Bloom, Arketa, Flair Labs, RareWaters, AND more.</p> <p> Let's build something great together. GET IN touch AT horizon-labs.co</p> Read More About Dynac

Debut Infotech is an AI-augmented blockchain and software development company founded in 2011, helping enterprises in financial services, healthcare, supply chain, and digital platforms build production-grade systems. With delivery centers across the USA, UK, Canada, and India, we combine 15 years of engineering discipline with blockchain-native expertise — serving Fortune 500 clients and high-growth startups across 25+ verticals. Read More About Debut Infotech

Debut Infotech delivered a secure, scalable CEX with great support and clear communication.

Cameron Chambers, Director of Supply Chain and Procurement at ISS Facility Services UK

Plavno is a premier software development house with over 20 years of experience and a highly qualified team of experts in your industry. Fully-fledged teams of specialists cover each stage of product creation, from product management and analysis to design, development, testing, and ongoing support. Read More About Plavno

Good Company

SUCHMITA BORO, Developer

AllianceTek has more than 18+ years of experience providing end-to-end software engineering services, with extensive experience in building Mobile, Cloud, and Web solutions.  Our core expertise lies in building solutions based on leading technologies and platforms, such as Microsoft .NET, Salesforce, Microsoft SharePoint, Azure, Amazon Web Services, iOS, Android, and many others. Read More About AllianceTek Inc.

Web Development for Sharepoint and Azure workflow development

Gerald Donlon, VP

GeekyAnts is a global tech consulting firm specializing in digital transformation, app development, and custom software. With teams in the USA, India, and UK, we deliver scalable solutions across industries like Healthcare, Fintech, and Real Estate, etc. Our expertise spans design, frontend (React Native, Flutter), backend (Node.js, Python), databases, QA, and microservices—blending human skill with modern tech. Read More About GeekyAnts

They were consistently receptive to our feedback and remained agile and flexible as our requirements evolved

AI-Powered Video Analytics Firm, CTO

Seasia Infotech, a CMMI Level 5 certified software development company, has been empowering businesses with innovative solutions for over two decades utilizing Seasia Agile Model (SAM). Read More About Seasia Infotech

Exceptional Application Services for Health Business App Development

Jasica,

We are a reliable partner in Digital Engineering and Enterprise Modernization. Our team combines extensive technical expertise with industry experience to assist our clients in predicting what is coming next and finding answers to potential questions. Our proven solutions and services provide a distinctive competitive edge for our clients by enabling them to gain a broader perspective and surpass their competitors. Read More About Persistent Systems

Andersen is a global software development company with 17+ years of experience, specializing in custom web and mobile solutions using cutting-edge tech like AI, Big Data, and Machine Learning. We deliver enterprise-level software for industries such as Healthcare, FinTech, Logistics, and more. Trusted by major brands like Siemens, Ryanair, and Johnson & Johnson, our team of 3,500+ experts has completed over 1,000 projects. Read More About Andersen

Collaboration, professional project management

Andrea Willeken, Consultant of Data

At Gorilla360 Ltd, we offer a full suite of services tailored to meet your business needs, leveraging the latest in technology and innovation. Whether you're looking for IT support, software development, digital marketing, or staffing solutions, we've got you covered. Our team of experts is dedicated to providing top-notch services to help your business thrive in today's competitive landscape. Read More About Gorilla360 Ltd

Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in Top-rated Mobile App Development, Blockchain, Web Excellence and innovative solutions. Our experienced team is dedicated to delivering high-quality service and support to help businesses achieve their goals. With a passion for technology and a commitment, we have the expertise and resources to streamline operations and drive success. Read More About Junkies Coder

Collaborative Social Music App Where Everyone Controls the Vibe Seamlessly

Rick Smith, Founder

SDLC Corp is a software development company founded in 2015 and headquartered in San Francisco, California. With a global delivery presence and a team of 400+ professionals, the company provides custom software, web and mobile applications, AI, ERP, blockchain, SaaS, cloud, and gaming development services for startups, mid-sized businesses, and enterprises across multiple industries. Read More About SDLC CORP

M TECHUB LLC is a full-cycle mobile app, web, and AI development studio trusted by global startups, agencies, and enterprise teams. With a team of 200+ experienced engineers, designers, and product builders, we help companies turn ideas into scalable digital products that grow, perform, and stand out. Read More About M TECHUB LLc

Vention is a leading software development company with over 20 years of experience. The company has empowered SaaS startups, product companies, and global tech leaders by delivering solutions in AI/ML, cloud computing, data analytics, DevOps, IoT, mobile, and web development. With 3,000+ engineers worldwide, Vention provides teams in aligned time zones, ensuring seamless collaboration and project success. Read More About Vention

Mobile App Dev for Sports Tracking Platform

Brent Varrall, Founder

Folio3 is a Global Salesforce Consulting Partner serving enterprises across various industries providing implementation, integration and managed services for Commerce cloud, Marketing cloud, Service cloud, Sales Cloud and Experience cloud. Read More About Folio3 Salesforce

Folio3 did a great job

Sarah, CTO

A pure-play software testing provider with 20+ years of experience focusing exclusively on quality assurance. Renowned for delivering high-level, complex projects, a1qa is a leader in the software field. With a team of 1,000+ specialists, they ensure secure, top-tier IT products while maintaining ISO-certified standards. Read More About a1qa

DevOps Managed Services for Insurance Provider

Anonymous, Technology Director, Insurance Provider