Top Private Blockchain Development Companies in UK
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List of the Best Private Blockchain Development Agencies and Private Blockchain Developers in UK
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
16 Companies
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UK
4.9 (16 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering peace of mind
Vention is a global software development company with over 20 years of experience delivering innovative, scalable solutions for startups and large enterprises. We handle projects of any size and complexity, enabling clients to accelerate growth, launch new products, and seize emerging opportunities. With a global network of 3,000+ experienced developers, we provide top engineering talent aligned to your time zone, technology stack, and business goals. We’ve partnered with 500+ industry-leading organizations, including PayPal, IBM, Mount Sinai, PwC, and Postman, contributing to more than $15B in client acquisitions. Our engagement model helps companies reduce operational costs by up to $600K annually, while our long-term relationships—averaging over 36 months and extending up to 16 years—reflect strong client trust and satisfaction. Vention offers full-cycle software development services, from strategy and architecture to deployment and optimization. Our capabilities include custom software development, web and mobile app development, QA and testing, cloud and DevOps, eCommerce platforms, AR/VR experiences, artificial intelligence, and blockchain solutions. As a trusted technology partner, Vention empowers businesses to innovate faster, scale efficiently, and stay competitive in an evolving digital landscape.
See all 9+ Case Studies
Undisclosed/hr
$25,000+
1,000 - 3,000
London, UK
Verified Client Review
Mobile App Dev for Sports Tracking Platform
Reviewed by: Brent Varrall, Founder at AllGains View all 16 Reviews
5.0 (18 Reviews)
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
54
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Redefining Software Design and Development with AI
Debut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service Areas Enterprise AI and generative AI — LLM integration, AI agents, RAG pipelines, and intelligent process automation Blockchain and Web3 — smart contracts, DeFi protocols, RWA tokenization, exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda Mobile — native iOS, Android, and cross-platform applications built for enterprise security and scale Web and software — full-stack platforms, SaaS products, and API-first enterprise systems Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and T?M 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplines
See all 9+ Case Studies
$25-$49/hr
$10,000 - $25,000
50 - 100
Oxford, UK
Verified Client Review
Robust Technical Proficiency in Web3 Architecture & Cryptocurrency Exchange Development
Reviewed by: Kellen Murphy, Identity Architect View all 18 Reviews
4.8 (8 Reviews)
52
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
52
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Technology Partner
SDLC Corp is a full-spectrum software engineering and technology company founded in 2015 and headquartered in Illinois, USA. With 1,200+ software engineers and 3,400+ completed projects, we deliver AI development, ERP consulting and custom software solutions for Clients across fintech, healthcare, retail, logistics, manufacturing and a wide range of other industries. Our global client base spans the USA, UK, UAE, India, Australia and Canada, along with other international markets. We are ISO 9001:2015, ISO/IEC 27001:2022, and SOC Type 2 certified, reflecting our commitment to quality management, information security, and client data protection. Our clients include Transworld, Huawei, Orange Telecom, Kiss USA, Equity Builders, Wadiaa, Jeffcolib, Port of Fujairah and Transworld Airavat, along with mid-market businesses across these industries. Our Services: AI and machine learning development ERP system integration and customization Custom software development Salesforce CRM implementation Cloud infrastructure, DevOps and platform engineering Digital transformation consulting Web development Game development using Unity and Unreal Engine Proven Client Results: 70% revenue increase for an engineering services client 90% AI detection accuracy for a financial services firm 1,00,000 –1,50,000 monthly users on a platform in operation since 2017 AI Integration, Public Sector Projects and Governance: We integrate AI with enterprise systems to automate repetitive tasks, improve operational efficiency, manage operating costs and improve the customer experience. Better access to business information also supports revenue growth through more consistent sales and service workflows. Alongside our enterprise engagements, we continue to work on AI projects for public sector organizations in USA, UK, UAE, India, Canada, Australia and other international markets, using our AI development and systems integration expertise to support government needs. Our AI governance consulting covers risk assessment, data protection, human oversight and lifecycle controls, helping organizations assess applicable requirements for AI adoption in different markets. Proprietary Products: DAN: data automation Pulastya AI: voice automation Foresite: business intelligence Praxis AI: institute management The products listed above are part of SDLC Corp’s broader portfolio of 50+ products. Engagement Models: We offer dedicated development teams, full-cycle product development, white-label solutions, staff augmentation and long-term product maintenance. Clients retain ownership of custom-developed source code and intellectual property, subject to the agreed contract terms.
See all 40+ Case Studies
$25-$49/hr
$25,000 - $50,000
100 - 1,200
Holbrooks, UK
Verified Client Review
4.9 (8 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
De[coding] Capabilities
Ezulix is a custom AI software development company specializing in engineering hyperautomation solutions across all business industries. Certified as a CMMI Level 5 IT company, Ezulix caters to the digital transformation and overall IT operations needs of enterprises, startups, SMBs, and large corporations. It uses a consulting-first approach and carefully analyzes the existing workflows of a business, strategizes a step-by-step automation roadmap, and curates an AI-powered business process automation solution for businesses, helping businesses reduce manual workload at speed and scale with intelligent workflows. In addition to business software solutions, Ezulix also specializes in first-of-its-kind mobile app development. It fulfils unique app development requirements with dedicated app development teams.
View Ezulix Software Profile
Undisclosed/hr
$7,000+
50 - 100
London, UK
Verified Client Review
Mobile App & Web Revamp & Maintenace for Car Manufacturer
Reviewed by: Bob Laishley, CEO at Caterham View all 8 Reviews
0.0 (0 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Built for Traders,By Traders
Moneda is a leader in trading technology and automated systems, founded on a commitment to integrity and innovation. We deliver a full suite of transparent, data-driven solutions, including institutional-grade strategies and highly efficient automated trading tools. Our ecosystem supports over 2,000 members with expert community support and a clear path for financial expansion.
View monedafx Profile
$25-$49/hr
$500+
20+
Kensington, UK
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Enterprise Mobile App Development Company
Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in web development Excellence, Top-rated Mobile App Development, Top-rated Android App Development, Top-rated iOS App Development, Top-rated Wearable App Development, Trusted Blockchain Development 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 to delivering impactful results, we have the expertise and resources to streamline operations and drive success. Trust Junkies Coder for your technology needs and Hire Mobile App Developers. Junkiescoder stands at the forefront of innovation, specializing in crafting stellar Mobile apps, captivating Web Applications, and sophisticated enterprise custom solutions. We excel in tailoring, enhancing, and seamlessly integrating intricate enterprise-grade systems, empowering businesses with insightful analytics, and pioneering cutting-edge web and mobile innovations. Boasting a rich legacy of over a 8+ years, our endeavors have catered to a diverse clientele spanning individuals, burgeoning startups, and esteemed organizations alike. At Junkiescoder, our adept team continually surges forward, honing their skills to keep pace with the dynamic industry landscape. From Blockchain to E-Learning, from IoT to Artificial Intelligence, from Machine Learning to SaaS, from Augmented Reality to Virtual Reality, the spectrum of our expertise knows no bounds. Our seasoned development squad has not only mastered these domains but also perpetually evolves alongside industry advancements. Let our achievements speak volumes; delve into our illustrious portfolio and peruse the glowing testimonials from our esteemed clients on our website. With Junkies Coder, you can trust that your technology needs are in good hands. What is the estimated timeline and cost for developing our website or mobile app? The estimated timeline and cost for developing your website or mobile app will depend on various factors such as project complexity, required features, design customization, and integration needs. We will analyze your specific requirements and provide you with a detailed timeline and cost proposal tailored to your project. Can you assist with integrating third-party services or APIs into our websites or mobile apps? Yes, we can assist with integrating third-party services or APIs into your websites or mobile apps. we have experience in seamless integration to enhance the capabilities of your digital products. What is our approach to quality assurance and testing during the development process? Our approach to quality assurance and testing is comprehensive. We follow industry best practices and conduct thorough testing at different stages of development to ensure the functionality, performance, and reliability of your website or mobile app. How we handle ongoing support, maintenance, and updates for the websites and mobile apps after the initial development? We provide ongoing support, maintenance, and updates for websites and mobile apps. Our team is available to address any issues, implement updates, and provide technical assistance to ensure your digital products continue to operate smoothly and remain up-to-date.
View Junkies Coder Profile
< $25/hr
$5,000 - $25,000
15 - 20
London, UK
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Digital Partner
SDNA Tech transforms concepts into real-world applications that are scalable, dependable, and appealing to consumers. We are inspired by your ideas and want to help you bring it to life.
View SDNA Tech Profile
< $25/hr
$10,000 - $15,000
100 - 1,501
London, UK
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5.0 (5 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Unlock Tomorrow
This IT-leader provides qualified assistance in designing smart products and adopting the latest technology innovations. In less than a decade, Computools has become a major player in global markets and currently excels at coming up with the best solutions in cross-platform mobile app development. The other sides of Computools’s business activity touch upon the IoT, VR & AR, Fintech, Consulting and Consumer services, and game software development. The company’s approach involves customized consulting during which the client has an opportunity to get a tailor-made solution that fits their high-level goals and business ambitions best. Computools’s brand has been repeatedly awarded for deep expertise and excellent digital solutions many of which were produced in association with numerous European and international enterprises.
View Computools Profile
$25-$49/hr
$50,000+
50 - 249
UK
Verified Client Review
Custom Software Development for System Integrator
Reviewed by: Tokio Kuwamura, Director at Sakura-Communication View all 5 Reviews
4.6 (2 Reviews)
25
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
25
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Make your ideas fly high with us.
Design Zilla, an AI-powered development consultancy, specializes in data-driven products and solutions for SMEs, focusing on end-to-end development. Established in 2019, they excel in AI use cases and development consultancy across various industries.
View Design Zilla Profile
$50-$99/hr
$25,000+
10 - 49
Dundee, UK
Verified Client Review
Web Dev, Design & Branding for Design Agency
Reviewed by: Shajjar Abbas Khan, Founder at Deminimalist.agency View all 2 Reviews
5.0 (1 Reviews)
5.0 (1 Reviews)
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Outsource Innovations
Rendmate is an IT solutions provider that fosters clients' ideas into successful products, focusing on creativity, competence, and commitment. They offer services like product design, hardware and software architecture, and analysis. Rendmate's success is measured by their clients' success, spanning multiple business sectors.
View Rendmate Profile
$50-$99/hr
$25,000+
50 - 249
London, UK
Verified Client Review
Web Design for e-Commerce
Reviewed by: Boris Kagan, Senior Manager at Superior Promos View all 1 Reviews
4.8 (1 Reviews)
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
22
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Delivering Goals
InnotatzIT Solutions focuses on helping businesses transition from digital thinking to digital being, offering enterprise-wide automation using Salesforce platforms, delivering a fast-paced transformational experience, and building trust with clients. They believe effective solutions are created through collaboration and a focus on excellence.
View InnotatzIT Solutions Profile
$25-$49/hr
$10,000+
10 - 49
Harrow, UK
Verified Client Review
Custom Software Development for IT Service Company
Reviewed by: Christopher D'souza, Project Delivery Head at Aartechso Solutions View all 1 Reviews
0.0 (0 Reviews)
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
20
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transforming AI into tangible business value
Halo is a London-based R&D organization that focuses on delivering high value outcomes with AI. They have an in-house team of industry experts who identify market trends and develop innovative solutions. They also focus on design, focusing on experience and robust engineering principles. Halo has over 10 years of experience working with clients globally in AI, Machine Learning, Cloud, and Data Science.
View Halo Technology Lab Ltd Profile
$150-$199/hr
$25,000+
10 - 49
London, UK
0.0 (0 Reviews)
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Empower your business with our expertly crafted bespoke software
Twin3's diverse IT and software development experience allows them to efficiently solve problems and build new applications, enabling them to solve problems at an accelerated pace.
View Twin3 Profile
$25-$49/hr
$50,000+
10 - 49
Loughborough, UK
0.0 (0 Reviews)
13
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
13
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Empowering Tomorrow with Digital Innovation
SUF Digital is a global technology company specializing in Artificial Intelligence, Blockchain & Digital Assets, Product Engineering, Data Engineering, Cloud Infrastructure, and enterprise software development. Founded in 2020, the company has evolved from digital services into a technology engineering and research-driven organization supporting enterprises, startups, financial institutions, and innovation-led businesses across international markets. SUF Digital combines research, engineering, and product development to design and build production-grade digital platforms, intelligent systems, blockchain infrastructure, real-world asset tokenization solutions, enterprise applications, and cloud-native technology. Through its technology ecosystem, SUF Digital works across the complete innovation lifecycle—from research and validation to architecture, product engineering, deployment, and continuous evolution—with a growing focus on technologies shaping the digital economy toward 2030 and beyond.
View SUF Digital Profile
Undisclosed/hr
$5,000+
10 - 49
London, UK
0.0 (0 Reviews)
12
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
12
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
transform ideas into Digital Solution
Akxens Inc. is a premier enterprise software engineering firm redefining the standards of digital transformation by bridging the critical gap between boutique agility and institutional scale. We specialize in architecting high-performance digital infrastructure—from custom ERP and CRM ecosystems to scalable SaaS platforms and secure financial ledgers—delivered with a "Zero-Latency" execution model. Unlike traditional outsourcing agencies, Akxens operates as a sovereign venture technology partner, deploying elite, pre-vetted engineering squads to convert complex business visions into robust, future-proof assets.
View Akxens Profile
$25-$49/hr
$1,000 - $50,000
50 - 150
London, UK
0.0 (0 Reviews)
10
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
10
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Building the Future with AI-Powered Software Solutions
DreamzTech Solutions is a global technology consulting and custom software development company helping startups, SMBs, and Fortune 500 enterprises build scalable, secure, and future-ready digital solutions. With more than 15 years of experience, DreamzTech has delivered 750+ projects for 500+ clients across 40+ industries, supporting businesses with strategy, design, development, integration, deployment, and long-term technology support. The company has a global presence, with offices and delivery capabilities in the USA, the UK, and India, enabling clients to work with experienced teams across time zones. DreamzTech specializes in custom software development, enterprise application development, web and mobile app development, SaaS product engineering, cloud solutions, AI consulting, IoT-enabled platforms, RFID-based tracking systems, BI dashboards, API integrations, ERP/CRM implementation, and legacy system modernization. Its core focus is to help businesses automate manual workflows, improve operational visibility, reduce inefficiencies, and make smarter data-driven decisions. The company has worked with leading global brands such as Adobe, DHL, Nestlé, AB InBev, Close Brothers, FLSmidth, Tata NYK, and many more. DreamzTech has also earned recognition from platforms and organizations such as Deloitte, The Economic Times, Clutch, Capterra, Software Advice, and other industry bodies for its innovation, service quality, and customer-focused delivery. A major strength of DreamzTech is its ability to combine emerging technologies with real business workflows. Through AI and Generative AI, DreamzTech helps businesses build intelligent chatbots, AI assistants, predictive analytics tools, workflow automation systems, smart dashboards, and AI-powered enterprise applications. With IoT, the company enables real-time monitoring, connected asset management, predictive maintenance, sensor-based alerts, and automated operational insights. Through RFID technology, DreamzTech helps organizations improve asset tracking, inventory accuracy, warehouse visibility, logistics automation, audit efficiency, and real-time supply chain control. DreamzTech also offers its own enterprise platforms, including DreamzCMMS for AI-powered maintenance and asset management, DreamzFSM for field service operations, RFIDTracks for smart asset and inventory tracking, and BestBrain.ai for enterprise AI chatbot and knowledge automation use cases. With a strong global delivery team, agile development practices, and deep industry expertise across manufacturing, logistics, facility management, retail, healthcare, fintech, real estate, field service, and eCommerce, DreamzTech acts as a long-term technology partner for businesses looking to innovate, scale, and transform digitally.
View DreamzTech Solutions Profile
Undisclosed/hr
$10,000+
50 - 249
Watford, UK
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