Top Private Blockchain Development Companies in London

Discover top private blockchain development companies in London. Compare reviewed agencies, portfolios, pricing, and services to hire the best Private Blockchain Developers for your project.
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4.9 out of 5, based on 25 real reviews.
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Explore Reviewed Private Blockchain Development Companies in London — 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.

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Vention
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Claimed by Official Representatives

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

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Services Provided
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Expertise Distribution (%)
  • 10% Blockchain Development

  • 10% Ecommerce Development

  • 10% Mobile App Development

  • 10% Software Development

  • 10% Web Development

  • 10% Web Design

  • 10% IT Services

  • 10% Artificial Intelligence

  • 10% Product Engineering services

  • 10% Cloud Computing Services

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.

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Inside Service Listing

Undisclosed/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

1,000 - 3,000

Team size
Inside Service Listing

London, UK

Location
Verified Client Review

Verified Client Review

Mobile App Dev for Sports Tracking Platform

Reviewed by: Brent Varrall, Founder at AllGains View all 16 ReviewsView all Reviews
Ezulix Software
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agency_climbed
Claimed by Official Representatives

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

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Services Provided
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Expertise Distribution (%)
  • 5% Blockchain Development

  • 25% Artificial Intelligence

  • 20% Mobile App Development

  • 20% Software Development

  • 10% Web Development

  • 10% Digital Transformation

  • 5% Web Design

  • 5% IT Services

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
Inside Service Listing

Undisclosed/hr

Hourly Rate
Inside Service Listing

$7,000+

Min. Budget Size
Inside Service Listing

50 - 100

Team size
Inside Service Listing

London, UK

Location
Verified Client Review

Verified Client Review

Mobile App & Web Revamp & Maintenace for Car Manufacturer

Reviewed by: Bob Laishley, CEO at Caterham View all 8 ReviewsView all Reviews
Junkies Coder
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agency_climbed
Claimed by Official Representatives

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

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Services Provided
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Expertise Distribution (%)
  • 20% Blockchain Development

  • 40% Mobile App Development

  • 20% Artificial Intelligence

  • 20% CMS

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
Inside Service Listing

< $25/hr

Hourly Rate
Inside Service Listing

$5,000 - $25,000

Min. Budget Size
Inside Service Listing

15 - 20

Team size
Inside Service Listing

London, UK

Location

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

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Services Provided
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Expertise Distribution (%)
  • 25% Blockchain Development

  • 25% Software Development

  • 25% Artificial Intelligence

  • 25% Web Development

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
Inside Service Listing

$50-$99/hr

Hourly Rate
Inside Service Listing

$25,000+

Min. Budget Size
Inside Service Listing

50 - 249

Team size
Inside Service Listing

London, UK

Location
Verified Client Review

Verified Client Review

Web Design for e-Commerce

Reviewed by: Boris Kagan, Senior Manager at Superior Promos View all 1 ReviewsView all Reviews
Akxens
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agency_climbed
Claimed by Official Representatives

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

View Profile Visit Website
Services Provided
info
Expertise Distribution (%)
  • 20% Blockchain Development

  • 20% Mobile App Development

  • 20% Software Development

  • 10% Ecommerce Development

  • 10% Web Development

  • 10% Digital Marketing

  • 5% Digital Transformation

  • 5% Artificial Intelligence

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
Inside Service Listing

$25-$49/hr

Hourly Rate
Inside Service Listing

$1,000 - $50,000

Min. Budget Size
Inside Service Listing

50 - 150

Team size
Inside Service Listing

London, UK

Location

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