Top Private Blockchain Development Companies in UK
SelectedFirms reviews agencies and verifies client feedback to support informed decisions. [How SelectedFirms Ensures Trust]
Explore Reviewed Private Blockchain Development Companies in UK — Find Skilled Private Blockchain Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
12 Companies
Filter by
-
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
As a software development company with 20+ years in the field, Vention provides innovative services to startups and large enterprises. We tackle projects of any complexity and size, delivering outstanding solutions that help clients focus on business expansion and new opportunities. With 3K+ dedicated developers globally, we match clients with top engineering talent in time zones that align seamlessly with their unique needs. Our impressive track record: We've worked with 500+ industry-leading clients, including PayPal, IBM, Mount Sinai, PwC, and Postman Our work has contributed to $15B+ in client acquisitions. Clients typically save up to $600K annually with us. With an average client relationship exceeding 36 months, our enduring partnerships speak to consistent client satisfaction. Our longest client engagement has lasted 16 years. We provide end-to-end software development expertise, covering the entire engineering spectrum, from initial concept creation to final delivery and refinement. Custom software development Web and mobile development QA and testing Cloud & DevOps eCommerce AR/VR AI Blockchain
See all 9+ Portfolios
$50-$99/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
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 software development company founded in 2015 and headquartered in San Francisco, California, United States. The company operates with a global delivery presence across the USA, UK, UAE, India, Australia, and Canada. SDLC Corp employs 400+ professionals, including software engineers, solution architects, UI/UX designers, DevOps specialists, and technology consultants. The company works with startups, mid-sized & large businesses, and enterprises across multiple regions and industries. SDLC Corp provides custom software development services that include web application development, mobile application development for native and cross-platform environments, artificial intelligence and machine learning solutions, ERP development using Odoo and Salesforce, blockchain development, SaaS product engineering, cloud infrastructure and DevOps services, and game and iGaming development. These services support both new digital product development and the modernization, integration, and scaling of existing software systems. The company offers flexible engagement models such as dedicated development teams, full-cycle product development, and long-term IT outsourcing partnerships. These models are designed to support distributed engineering teams, continuous development roadmaps, and ongoing system maintenance. SDLC Corp serves clients across fintech, gaming and iGaming, healthcare, retail and e-commerce, logistics and supply chain, SaaS and technology, and manufacturing industries. Typical use cases include workflow automation, system integration, data-driven applications, secure transaction platforms, high-traffic digital systems, and enterprise software platforms. SDLC Corp follows structured software engineering practices that include requirement analysis, architecture planning, iterative development, quality assurance, deployment, and post-launch support. By aligning technology implementation with defined business requirements, the company supports operational efficiency, system reliability, and long-term digital scalability.
See all 36+ Portfolios
$25-$49/hr
$10,000 - $50,000
200 - 414
Holbrooks, UK
Verified Client Review
5.0 (16 Reviews)
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
47
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Blockchain, AI, and Mobile App Development Company
Debut Infotech is a global leader in advanced technological solutions, renowned for its expertise in AI, Blockchain, Smart Contracts, IoT, and mobile and web development. Since its inception in 2011, the company has grown to become a trusted partner for businesses worldwide, from Fortune 500 companies to SMEs and MSMEs. In addition to its industry-leading white label crypto solutions, Debut Infotech excels in blockchain and crypto services, including real estate tokenization, decentralized application (DApp) development, DeFi solutions, and smart contract development. These services enable businesses to leverage blockchain technology for secure, transparent, and efficient operations, transforming traditional industries and unlocking new revenue streams. The company’s AI development services further enhance its portfolio, integrating cutting-edge technologies like GPT-4, LLaMA, and PaLM-2 to deliver intelligent, data-driven solutions that drive operational efficiency and innovation. With headquarters in India, the USA, the UK, and Canada, and an expanding team of over 100 technologists, Debut Infotech continues growing and innovating top-tier expertise at competitive rates. As the company advances, it remains committed to delivering customized solutions that address the most complex challenges, driving transformation and success for clients across the globe.
See all 1+ Portfolios
$25-$49/hr
$10,001 - $15,000
100+
Oxford, UK
Verified Client Review
Head of Human Resources - Project EnergyConnect
Reviewed by: Rachel Solomon, Head of Human Resources View all 16 Reviews
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
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
We are Mobile App Development Company
Inceptives Digital is your trusted partner for mobile app development in the US. With more than 8 years of experience and a talented workforce of 150+ developers, we’ve created 70+ high-performing apps across 20+ industries. Our mission is to help businesses transform ideas into powerful digital solutions that connect with users and deliver lasting value. Through AI-driven innovation, intuitive design, and a results-focused approach, we empower startups and enterprises alike to achieve their goals and thrive in today’s competitive digital landscape.
View Inceptives Digital Profile
$50-$99/hr
$500 - $50,000
50 - 99
London, UK
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
Why Companies Trust SelectedFirms?
SelectedFirms bridges the gap between businesses and digital service providers as a trusted B2B research and listing platform. With the trust of 14,000+ companies and a growing community of 1M+ users, we empower businesses with reliable insights to make confident decisions.
Human-verified companies
We manually review companies to ensure they meet our quality standards before they appear on the platform.
Research-driven rankings
We rank companies using a clear ranking methodology based on real client feedback, expertise, market credibility, and how well teams execute — not hype.
Always up-to-date insights
We regularly refresh listings with new reviews, portfolio updates, and market changes to keep decisions relevant.
Verified credibility signals
From verified badges to editorial reviews, we highlight companies that show real commitment to quality and transparency.
