Top Blockchain Development Companies in London
Goodfirms has reviewed 105 Blockchain Development Companies in London as of November 2026. The top-ranked firm is Probey Services (5.0 stars, 167 verified reviews, < $25/hr, founded 2016, London). Across the category, the median hourly rate is $37, median client rating is 4.9, and 39% of firms employ 50+ members. Explore the vetted Blockchain Development Companies in London below, compare their strengths, and connect with the provider best suited to your requirements.
Browsing online for top blockchain development companies in London for your business? Goodfirms has precisely what you need - a list of top blockchain technology companies in London with verified client reviews. The ingenious blockchains are the new kids on the technological block. And well, every business wants to benefit from the revolutionary development. Hence, finding skilled blockchain developers has become critical for companies that know the tech inside and out and can suggest the best possible ways of integrating it into their systems. Go through the rundown below of top blockchain companies in London by Goodfirms’ research team and choose the one that fits you best.
Goodfirms has verified 105 Blockchain Development Companies in London - part of 3,211+ Blockchain Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of Top London Blockchain Companies & Developers
Sponsored
Using AI Tools
ChatGPT
Claude
Gemini
Perplexity
GitHub Copilot- + 4 More
Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. With a strong presence in India and 11 global branches, we combine global reach with deep technical expertise. Our 320+ specialists have successfully delivered 1900+projects over ... read Probey Services reviews & insights
< $25/hr250 - 9992016London, United KingdomA well-executed website project that gave us a stronger foundation for future growth.
- Product ManagerWhy Probey Services?
- Delivered 1,800 projects in the last decade
- Awarded, Most-reviewed, most-rated (122 reviews)
- Reliable & scalable solution with 320 experts
Using AI Tools
- ChatGPT
With over 1,500 successfully completed projects and more than 500 highly satisfied clients, SoluLab is a leading blockchain development company in the USA. The company specializes in building Blockchain Games, Ethereum tokens, Web 3.0 solutions, and DeFi applications. SoluLab is also widely renowned for blockchain ... read SoluLab reviews & insights
$25 - $49/hr250 - 9992014London, United KingdomGreat experience, operations and value in one place
- AnonymousWhy SoluLab?
- ISO-Certified Development Team
- 10 plus Years of Digital Innovation
- Custom AI Solutions for Every Business
Using AI Tools
- ChatGPT
- Claude
- Gemini
- Perplexity
With 15+ years of experience, Debut Infotech is a leading blockchain development company recognized for its seamless creation of Web3 products. The company specializes in cryptocurrency exchange platforms, wallet development, coin creation, tokenization, and other advanced blockchain solutions. Backed by 200+ technical experts and business ... read Debut Infotech reviews & insights
$25 - $49/hr50 - 2492011London, United KingdomWorked with Debut Infotech on a DeFi project; delivery was smooth and well-structured.
- VP OF MARKETING at UniTeller Financial ServicesWhy Debut Infotech?
- Proven results with cutting-edge tech solutions
- Focused on clear communication and client success
- calable, high-performance solutions for any need
CML Team LTD is a global technology consultancy that builds holistic end-to-end solutions and platforms for startups and enterprises. We have extensive experience working with startups who grow fast and succeed. We know their needs precisely, as well as their problems. Our mission is to ... read CML Team Ltd reviews & insights
$50 - $99/hr10 - 492018London, United KingdomCML Team helped us with integration of the DeFi exchange into our solution.
- Chief Technology Officer
SPEQTO Technologies is a leading software development company and also a top-notch service provider in blockchain development services.Get the best blockchain developers and web development services at Speqto, with world-class customized solutions as per our clients' needs. ... read SPEQTO Technologies Pvt Ltd reviews & insights
$50 - $99/hr50 - 2492017London, United Kingdomthey delivered a custom software solution that perfectly met our needs,
- Director
Using AI Tools
- ChatGPT
- Claude
Cursor- GitHub Copilot
- Perplexity
- + 3 More
At Chop Dawg, we're more than an ordinary mobile app development agency. We're your extended team, focused on delivering the results your business needs. For over 18 years, we've launched 500+ apps for startups, growing businesses, Fortune 500s, nonprofits, & government agencies. When you partner ... read Chop Dawg reviews & insights
$25 - $49/hr50 - 2492009London, United KingdomChop Dawg went above and beyond to deliver a professional website while providing consistent updates, expertise, and exceptional service throughout the project.
- CEOWhy Chop Dawg?
- Over 500 apps launched in 18 years
- 92 percent of partners return for more
- Fixed monthly pricing, no surprises
Blockchain App Maker is a trusted blockchain development company that provides comprehensive solutions in NFT, DeFi, cryptocurrency, exchange platforms, launchpads, BSC, tokenization, the Metaverse, and Web3 technologies. Operating from the USA, India, and the UAE, the company has successfully delivered over 150 projects with a ... read Blockchain App Maker reviews & insights
NA50 - 2492021London, United KingdomA wide variety of understanding and knowledge about new blockchain technologies.
- founder
Tech Alchemy is an award winning software design and development agency based in Shoreditch, London, United Kingdom. We are trusted by a mix of large organizations, brands, as well as the most ambitious startups. Our products have been used by millions and received widespread critical ... read Tech Alchemy reviews & insights
$50 - $99/hr50 - 2492016London, United KingdomThe level of work and output has been awesome.
- Founder & Co-CEO
Using AI Tools
- Claude
- ChatGPT
- Cursor
Lovable- GitHub Copilot
Cubix is a US-based blockchain development company delivering customized and scalable blockchain solutions to businesses in over 50 countries. Backed by a team of 250+ technology professionals, the company specializes in enterprise blockchain, decentralized applications, e-wallet platforms, blockchain supply chain solutions, and blockchain cloud services. ... read Cubix reviews & insights
$25 - $49/hr50 - 2492008London, United KingdomGood product can be use
- Product ExecutiveWhy Cubix?
- 18 Years of Proven Industry Expertise
- 1,300 Plus Projects Delivered Globally
- Enterprise to Startup, We Scale With You
Since 2020, Galaxy4Games has grown into a full-cycle game development studio of over 40 specialists, delivering turnkey solutions for mobile, web and blockchain platforms. We partner with publishers, startups and global brands to transform bold ideas into successful titles on time and on budget. Mobile ... read Galaxy4Games reviews & insights
$25 - $49/hr10 - 492020London, United KingdomExceptional Full-Cycle Game Development Partner for Our Web3 Educational Game
- CEO & Founder
Using AI Tools
- Claude
- ChatGPT
Smartym Pro is a full-cycle development company specialized in Mobile, Web and Blockchain development. The company has strong development culture and focuses on innovative solutions, using cutting edge technologies and frameworks. Smartym Pro is based in Poland and has offices in (United Kindom, Germany). Our ... read Smartym Pro reviews & insights
$25 - $49/hr50 - 2492012London, United KingdomIt was a pleasure to work and communicate with Smartym Pro’s team
- ConsultantWhy Smartym Pro?
- Billing linked to value. You see who works
- We adapt to your process and task mix
- Talk built for long-term work together
Using AI Tools
Crystal
Crypto Legal is a multi-award-winning international law firm specialising in blockchain technology, cryptocurrency, digital assets, blockchain forensics, regulatory compliance, financial crime, and asset recovery. As one of the first crypto-native law firms established in the United Kingdom, the firm combines legal, forensic, and compliance expertise ... read Crypto Legal reviews & insights
$300+/hr10 - 492017London, United KingdomWe are using all state-of-the-art development best practices in terms of development cycles.
- Managing Director at Blockchain 121 | Executive Search - Over 29k web3 connectionsWhy Crypto Legal?
- Award-Winning Crypto Legal Experts
- Certified Blockchain Forensics Team
- Trusted by Clients Worldwide
HEXENS secures your business, data and assets by providing cutting-edge cybersecurity services and solutions, covering all the aspects of the company's digital presence.We go above and beyond expectations to secure digital assets and data. Our goal is to provide an incomparable experience when it comes ... read HEXENS reviews & insights
$100 - $149/hr10 - 492021London, United KingdomOur company received security services and protected our assets because of the hard work and expertise of Hexens specialists.
- Head of Marketing and Communications
We’re affordable for any business and provide a user-friendly dashboard with automated publishing and reporting. Our quick work is vital for your PR strategies. The blockchain industry is booming with daily innovations. A successful marketing plan is crucial for success. To connect with the audience, ... read Web3 Newswire reviews & insights
NA10 - 49London, United KingdomCrypto PR delivered on time and were well-coordinated.
- Marketer
Developers with 5+ years of experience in iOS, Android, and the Art of Clear Communication. The development community and our clients back up our expertise: 22 000+ stars on GitHub 33 5-star customer reviews Over 30 tech articles and tutorials available for free 50+ successfully ... read Exyte reviews & insights
$50 - $99/hr10 - 492014London, United KingdomLook no further: The folks at Exyte are the real deal!
- J Archer
In the heart of digital revolution, we are here to bridge gap between your business and the ever-expanding world of technology. Our team of experienced developers and consultants works closely with clients across diverse industries to craft solutions that meet their unique challenges, ensuring they’re ... read Nasnix Pvt Ltd reviews & insights
$25 - $49/hr50 - 2492021London, United KingdomI’m impressed by their communication skills,
- Co-Founder at Bitcoin Lottery Protocol
We have been providing custom block chain development services for the past few years now and we are experts at creating block chains that meet all the requirements. We offer complete support throughout the life cycle of your project. From consultation to post-launch maintenance, we ... read 5StarDesigners Ltd reviews & insights
$25 - $49/hr50 - 2492013London, United KingdomPerfectly delivery of project, they were best with providing solution at every stage.
- CEO
Applied Blockchain is a blockchain applications development company, focusing on distributed ledger technology and smart contracts. Based in London, Applied Blockchain has an expert team of in-house blockchain developers that have been building solutions for two years. The company is self-funded and has built private blockchain applications that are now live in production environments, being ... read Applied Blockchain reviews & insights
$25 - $49/hr10 - 492016London, United Kingdom
ChainThat is a technology-focused start-up that specializes in delivery of Blockchain-based enterprise distributed applications and products across different industry verticals. Our ethos is that all solutions we develop must be deployable and stand up to the rigors of practical use in the real-world. Our collective background is on taming complex technologies and deploying them to ... read Chain That reviews & insights
$25 - $49/hr2 - 92015London, United Kingdom
Blocksmith is a blockchain development studio that leverages the experience in building products by Whitesmith and supported by KR1, leading digital asset investment company. We want to demystify the application of blockchain in the business world helping startups and corporate mavericks pragmatically assess the advantages of using blockchain and define together a strategy that fits ... read Blocksmith reviews & insights
$25 - $49/hr2 - 92018London, United Kingdom
The Blockchain Development Company is established by young technology enthusiasts, with a mission of bringing qualitative changes in the world through Blockchain Technology. Being an optimist research team, we always venture to embrace game-changing technologies, providing innovative solutions to clientele across the furthest ends of business and scale spectrum. Our expertise in blockchain development enables ... read Blockchain Expert reviews & insights
NA10 - 492017London, United Kingdom
We are a biotechnology data and analysis company optimizing the way DNA is shared, secured and analysed. By utilizing innovative technologies such as blockchain and machine-learning algorithms, we are able to democratize genomics. ... read Shivom reviews & insights
< $25/hr10 - 492017London, United Kingdom
The CargoCoin team and advisors comprise of highly educated & skilled individuals with solid experience in the Shipping Industry and the IT sector. Team members’ job positions and range from small privately-owned company managers to senior management and shareholders of big multinationals with structural influence in the shipping and transport industry in the far east ... read CargoCoin reviews & insights
< $25/hr10 - 492018London, United Kingdom
Modex innovates in order to solve the last mile adoption problem of digital technology in society. Modex offers fully integrated data protection solutions and aims to make the blockchain technology user-friendly for organizations and people. Modex is a leading Blockchain Database provider offering real-time data integrity, immutability, and data security to help companies protect valuable ... read Modex reviews & insights
$25 - $49/hr50 - 2492017London, United Kingdom
Our company specializes in providing top-notch development and advisory services for businesses looking to integrate blockchain technology into their operations. We provide expert guidance on the implementation of blockchain solutions and work with our clients to develop custom strategies that meet their specific needs. ... read InWings reviews & insights
$25 - $49/hr2 - 92023London, United Kingdom
Laba Corp Labs is a cutting-edge decentralized crypto staking and DeFi platform designed for secure, transparent, and high-yield financial solutions. Empowering users with smart contract-based staking, yield farming, and liquidity pooling, it offers full control over digital assets with no intermediaries. Join Laba Corp Labs to experience the future of decentralized finance and grow your ... read Laba Corp Labs reviews & insights
NA10 - 492024London, United Kingdom
LutinX is a Blockchain Platform specializing in Digital Data Certification and Data Supply Chain Traceability. Our primary focus is to create a “Trusted Digital World” of identified people, companies, and Institutions for a great and ethical world. With our technology, you can easily timestamp documents, and trace the best supply chain for your needs. With ... read Lutin Technologies Ltd. reviews & insights
NA2 - 92021London, United Kingdom
As a technology and solutions consulting company we bring software innovations to working businesses to increase their efficiency. We manage all stages of the software lifecycle, including ideation, architecture, design, development and quality assurance. When the product is up and running we are ready to ... read Accellabs reviews & insights
$25 - $49/hr10 - 492010London, United KingdomExceptional Results
- Vice President of Technology
FortySeven Software Professionals (FSSP) is a European based IT consulting, IT outsourcing and full-cycle software development company. Over a decade FSSP helping clients to scale their business operations from startups to Fortune 500 companies. FortySeven has offices in UK, Spain, Latvia and Poland. FortySeven certified ... read FortySeven Software Professionals reviews & insights
$50 - $99/hr250 - 9992006London, United KingdomSuccesful Financial Software Development
- Key Account Manager
Webskitters LTD is a dynamic software development company specializing in UI/UX design, web development, mobile app creation, and digital marketing solutions in London, UK. Our diverse expertise also encompasses real estate, online ordering apps, travel booking engines, fintech innovations, eLearning platforms, and BFSI services. With ... read Webskitters LTD reviews & insights
NA2 - 92010London, United KingdomMobile App Dev & Design for Marketing Agency
- President @ Blue Gorilla Digital | Marketing Communications Expert
We create great mobile and web apps using the latest technologies focused on building elegant and functional products. What sets us apart is our can-do attitude about every project we take up. We are a bright team of 20+ developers, designers, analysts, and QA engineers ... read ESTENX reviews & insights
$50 - $99/hr10 - 492022London, United KingdomEfficient collaboration with a dedicated team ESTENX on the SaaS product Effex.cloud
- Anonymous
Coders, A CISIN Company. We work one next to the other with aggressive organizations, brands, and authors to settle on bolder decisions and reveal extraordinary change with client-driven and genuinely client approved advanced items. Vital Business Consulting — Partnering to characterize and gain by extraordinary ... read Coders.Dev reviews & insights
$25 - $49/hr10 - 492010London, United KingdomMusic Streaming App Development
- Epson Kyra
We are a cutting-edge team that redefines the way people work. Forming meaningful and personal relationships with our clients is very important to us. We cooperate with clients' developers or work as an independent, self-sufficient team. We are capable of going far beyond single apps. ... read Aurity.co reviews & insights
$50 - $99/hr10 - 492015London, United KingdomGreat company to work with
- CTO & Co-Founder
We provide IT outstaffing and IT outsourcing services in various areas, including software development, web and mobile applications, as well as ML and AI. Main in-house tech stack: Vue.js, React.js, Next.js, Angular.js, Nuxt.js, Node.js, PHP, Laravel, WordPress, Yii2, Python, React Native, Flutter, etc. Business domains: ... read Zentix Soft LTD reviews & insights
$50 - $99/hr50 - 2492021London, United KingdomMost notable was their ownership mindset.
- Anonymous
Augment Blockchain Ltd is a blockchain technology company based in London, UK, focused on providing innovative solutions for businesses and organizations that want to leverage the power of blockchain technology. The company strives to provide comprehensive solutions for clients that will help them unlock the potential of blockchain technology and create new opportunities for growth. ... read Augment Blockchain reviews & insights
$100 - $149/hr2 - 92022London, United Kingdom
Using AI Tools
- Lovable
7BlockLabs is a premier blockchain product studio dedicated to building production-grade Web3 infrastructure for enterprises, brands, and protocols that cannot afford security failures or launch-day chaos. Unlike typical development shops that rely on freelancers, we operate as a dedicated, audit-ready engineering pod, delivering battle-tested smart contracts and scalable backend systems. Our mission is to professionalize ... read 7Block Labs reviews & insights
$25 - $49/hr10 - 492025London, United KingdomWhy 7Block Labs?
- Security first blockchain engineering
- Production grade Web3, zero launch chaos
- Enterprise grade infra for Web3 products
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 ... read Gorilla360 Ltd reviews & insights
< $25/hr10 - 492020London, United KingdomExcellent Team
- Anonymous
Devtrios is a London-based web and mobile app development agency delivering scalable, high-performance digital solutions for startups, SMEs, and growing enterprises worldwide. Our team of 35+ designers, developers, and strategists combines modern technology stacks with a user-first approach, ensuring every product we build is fast, ... read Devtrios reviews & insights
$25 - $49/hr10 - 492019London, United KingdomDevtrios delivered a modern website with great design, smooth UX, and strong SEO results.
- Anonymous
The system is a set of decentralized nodes of the network that process, store and execute transactions and confirm the terms of smart contracts, process requests from third-party systems, and provide information when requested. ... read Credits reviews & insights
< $25/hr50 - 2492016London, United Kingdom
Get business solutions from Loyakk Inc. one of the best blockchain technology companies offering blockchain technology applications for worldwide business solutions and blockchain technology solutions using LYK Tokens. ... read Loyakk Vega reviews & insights
NA250 - 999London, United Kingdom
We Lead Advanced Transformations for Organizational & Government Leaders to achieve Deeper Stakeholder Relationships & Enterprise Value Maximization with Industrial Intelligence driven by our Global Management & Technological Prowess. ... read Cosdec Alpha reviews & insights
< $25/hr10 - 492020London, United Kingdom
Blockchain technologies form a complex and ever evolving ecosystem of ideas and utility. Whether your interests be investment, integrating new services into an existing business, or developing a new project that leverages these technologies, our goal is to help you stay at the forefront of this rapidly advancing landscape. ... read blockproof. reviews & insights
$25 - $49/hr2 - 9London, United Kingdom
Our goal is to identify how blockchain technology can affect your core business and industry.Whether you are new to blockchain and web3 technologies or are already live with your blockchain initiatives, our products and services will assist in the delivery of your business goals using Web3 technologies. The company founder, Conor, was keen to explore ... read Web3 Labs reviews & insights
NA10 - 492017London, United Kingdom
Syntagma labs was founded to help ambitious projects build the future. Our services cover cutting-edge technologies and emerging markets. Unlike other projects, we embrace a data-driven approach in all our projects. Any idea you may have will first be checked and validated by our data analysis and research. With 10 years of cumulative experience in ... read Syntagma Labs reviews & insights
$50 - $99/hr2 - 92021London, United Kingdom
Bitorix is a web3 consulting firm that specializes in custom software development for crypto payments, tokens, NFTs, smart contracts and DeFi projects. We have built a wide range of systems from reliability-critical fintech systems, and large data analytics pipelines to high-performance web services. The company founders have worked at the leading tech companies and know ... read Bitorix reviews & insights
NA2 - 92018London, United Kingdom
Idealdevs is a software house, dedicated to delivering software engineering excellence while ensuring quality and transparency at every stage of the process. We specialize in delivering high-tech innovations from startups to established enterprises, enhancing their operations and boosting the value they contribute in today’s digital environment. With a team of over +30 engineers distributed across ... read Idealdevs reviews & insights
$50 - $99/hr10 - 492023London, United Kingdom
Using AI Tools
- Claude
- Gemini
Grammarly- Perplexity
- GitHub Copilot
Chainsense India Pvt. Ltd. is an emerging technology company specializing in AI, Blockchain, SaaS and enterprise digital infrastructure. With experience across 400+ national and international projects, Chainsense delivers custom blockchains, DApps, AI tools, ERP/CRM systems and GovTech solutions. Its reusable IP, rapid execution and full-stack capabilities position it as a strategic technology partner for businesses, ... read Chainsense reviews & insights
$25 - $49/hr50 - 2492020London, United KingdomWhy Chainsense?
- Cost Effective
- Complete Development Suite In-house
- Complete end to end solutions.
Using AI Tools
- Claude
MLabs builds and reviews software where the cost of being wrong is high. The work splits four ways: advice for founders and engineering leaders, development in Haskell, Rust and Nix, and independent review and formal verification before a system goes live. The fourth is running the identity and secrets infrastructure a team deploys and then ... read MLabs reviews & insights
$100 - $149/hr10 - 492018London, United KingdomWhy MLabs?
- Verification with model-checkers and proofs
- Audit reports published where the client allows
- We tell you if you don't need us
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