London is fast becoming a global hub for blockchain innovation. With its strong financial foundation, access to top-tier talent, and a forward-thinking regulatory approach, the city has fostered an environment where blockchain companies thrive.
From fintech applications to digital identity systems, blockchain is redefining how data, transactions, and trust are managed in both public and private sectors.
In this article, we highlight the top 10 blockchain companies in London, exploring how each is contributing to the UK’s growing blockchain ecosystem. Whether you’re a business seeking technological transformation or an investor scouting industry leaders, these companies represent the best the capital has to offer.
What Makes a Blockchain Company Stand Out in London?
The blockchain scene in London is rich and competitive, but not all companies are created equal. What differentiates the top performers is their ability to translate complex blockchain protocols into tangible, scalable, and secure solutions that solve real-world problems.
These companies go beyond offering basic development services; they create systems that drive efficiency, enhance transparency, and increase security across industries.
A standout blockchain company typically has a deep understanding of smart contracts, distributed ledgers, and interoperability. They are also capable of delivering tailor-made platforms that integrate seamlessly with existing infrastructure, whether in finance, healthcare, logistics, or the public sector.
Their trustworthiness stems not only from technical excellence but also from their adaptability to UK compliance standards in data security and financial governance.
Which Are the Top 10 Blockchain Companies in London?
1. Applied Blockchain – “Engineering the Future of Enterprise Blockchain”
Based in London, Applied Blockchain has built a strong reputation for creating privacy-centric and scalable blockchain platforms tailored to enterprise needs.. Founded in 2015, it has partnered with global brands like Shell, KPMG, and the UK Government to implement decentralised technologies in high-impact sectors.
The firm excels in custom smart contract development, zero-knowledge proofs, and Web3 infrastructure for enterprises. Their engineers bring deep expertise in multiple blockchain protocols, ensuring robust integration across networks.
With offices in London and Porto, Applied Blockchain continues to drive digital transformation across energy, automotive, and financial sectors. Their commitment to R&D sets them apart in a rapidly evolving tech space. As the blockchain landscape matures, Applied Blockchain remains at the forefront of innovation in the UK.
Focus Area
Enterprise-grade distributed ledger applications for regulated sectors.
Best Suited For
Large corporations and institutions requiring custom blockchain solutions.
Pricing: Custom pricing based on project scope
- Website: appliedblockchain.com
- Phone: +44 20 3865 3460
- Address: 86-90 Paul Street, London EC2A 4NE
- Email: info@appliedblockchain.com
Review: ★★★★☆
“They delivered a secure, scalable platform that exceeded our expectations in both speed and compliance.”
2. Quant Network – “Powering Blockchain Interoperability”
Quant Network revolutionises the way blockchains communicate through its patented Overledger OS. Founded in London in 2015, Quant is bridging the gap between existing IT infrastructure and emerging blockchain ecosystems. Its platform enables secure and seamless interoperability across multiple blockchains and enterprise systems.
Financial institutions, governments, and multinational organisations use Quant to power data mobility and application agility. The company’s unique Multi-Ledger Token (MLT) and API framework allow real-world applications to connect easily with multiple distributed ledgers.
Quant is not building another blockchain it’s building the glue that connects them all. It plays a vital role in creating a unified future for decentralised technology in the UK and beyond.
Expertise
Blockchain interoperability and multi-chain integration.
Ideal For
Financial institutions and governments needing cross-chain data visibility.
Pricing: Enterprise licensing and modular API fees
- Website: quant.network
- Phone: +44 20 4538 3200
- Address: 1 Fore Street Avenue, London EC2Y 9DT
- Email: info@quant.network
Review: ★★★★★
“Quant made it possible for our systems to speak to each other across networks. Truly transformative.”
3. R3 – “Corda for the World’s Most Trusted Institutions”
R3 is a global leader in enterprise blockchain technology, headquartered in London and best known for its Corda platform. Since 2014, R3 has partnered with over 350 financial institutions, including HSBC, BNP Paribas, and ING. Their permissioned blockchain provides scalability and privacy, making it ideal for use cases in finance, insurance, and trade.
The Corda platform is tailored for regulated industries that demand secure, efficient transaction networks without the public exposure of traditional blockchains. In addition to its core platform, R3 provides a suite of developer resources, strategic partnerships, and expert advisory to support project deployment.
With a strong focus on compliance and interoperability, R3 enables institutions to future-proof their operations. R3 remains a key player in shaping the UK’s blockchain-driven financial innovation landscape.
Area of Mastery
Permissioned blockchain for secure, high-volume transactions.
Most Suitable For
Enterprises in finance and trade requiring robust compliance and privacy.
Pricing: Tiered licensing for Corda Enterprise
- Website: r3.com
- Phone: +44 20 3984 1242
- Address: 2 London Wall Place, London EC2Y 5AU
- Email: info@r3.com
Review: ★★★★☆
“We needed a solution trusted by banks, and R3 delivered it with precision and reliability.”
4. Everledger – “Provenance Through Blockchain Transparency”
Everledger is a pioneer in blockchain-based asset tracking and digital provenance. Launched in 2015 and headquartered in London, the company builds immutable digital records for high-value assets such as diamonds, fine art, and wine. Using a mix of blockchain, AI, and IoT, Everledger ensures that physical items come with tamper-proof histories and ownership records.
This helps industries prevent fraud, meet compliance standards, and support sustainable sourcing. Everledger’s blockchain infrastructure is extensively used across sectors like luxury retail and insurance to verify authenticity and provenance.
The platform empowers consumers and companies to make informed decisions by accessing transparent product histories. As blockchain adoption increases, Everledger is setting the standard for supply chain transparency in the UK and globally.
Core Competency
Asset traceability and digital provenance systems.
Best Matched With
Supply chain organisations and ethical brands tracking high-value items.
Pricing: Subscription and per-asset tracking model
- Website: everledger.io
- Phone: +44 20 3318 6622
- Address: 70 Wilson Street, London EC2A 2DB
- Email: hello@everledger.io
Review: ★★★★☆
“We finally have full confidence in our sourcing process thanks to Everledger’s blockchain records.”
5. SettleMint – “Low-Code Blockchain for Fast Deployment”
SettleMint has redefined how enterprises approach blockchain development through its low-code platform. With a presence in London, the company enables fast and efficient deployment of decentralised applications without the need for extensive programming skills.
Since its launch in 2016, SettleMint has helped businesses cut development times by up to 85%, making blockchain adoption far more accessible. SettleMint’s versatile architecture is compatible with platforms like Ethereum, Hyperledger, and Corda, making it ideal for multi-sector enterprise adoption including finance, health, energy, and government.
Their intuitive tools empower IT teams to quickly prototype, test, and launch solutions. SettleMint is democratising blockchain development and making it a realistic choice for mid- to large-sized businesses.
Primary Strength
Low-code blockchain development with enterprise features.
Recommended For
Businesses launching dApps without large in-house tech teams.
Pricing: SaaS subscription model + usage-based tiers
- Website: settlemint.com
- Phone: +44 20 3936 1268
- Address: 1 Primrose Street, London EC2A 2EX
- Email: info@settlemint.com
Review: ★★★★☆
“Their streamlined development process brought our vision to life in just a few weeks much faster than we anticipated.”
6. Outlier Ventures – “Accelerating the Open Metaverse”
Outlier Ventures is more than just a blockchain company. it’s the UK’s leading Web3 venture platform and accelerator. Since its launch in 2014, the firm has supported over 200 early-stage blockchain startups through funding, mentorship, and go-to-market strategy.
Its flagship Base Camp program nurtures projects in DeFi, NFTs, and metaverse infrastructure, helping founders raise capital and scale rapidly. Outlier Ventures has cultivated a unique ecosystem that connects entrepreneurs with industry experts, VCs, and technical resources.
Their focus on decentralised data economies and tokenised business models positions them at the cutting edge of Web3 innovation. With a strong base in London, they’re helping shape the global future of decentralised technologies.
Specialism
Startup acceleration and token ecosystem design.
Perfect For
Web3 and blockchain startups seeking funding, mentorship, and launch support.
Pricing: Equity or token-based accelerator programs
- Website: outlierventures.io
- Phone: +44 20 3239 8765
- Address: 14 Bonhill Street, London EC2A 4BX
- Email: hello@outlierventures.io
Review: ★★★★★
“They didn’t just invest they opened doors to a whole ecosystem of partners and mentors.”
7. Blockchain.com – “The World’s Most Trusted Crypto Platform”
Founded in 2011, Blockchain.com is one of the most recognised names in the crypto industry, with a strong operational base in London. It offers a full suite of services including crypto wallets, exchange trading, institutional custody, and real-time blockchain data analysis. The platform has over 80 million wallet users globally and handles billions in monthly crypto transactions.
Known for its intuitive interface and high-level security, Blockchain.com has become the go-to solution for both beginners and experienced crypto investors. Its institutional arm also provides OTC trading, lending, and asset management services. The company’s strong foundation in UK fintech fuels its ongoing contributions to advancements in digital financial infrastructure.
Field of Excellence
Cryptocurrency wallets and blockchain data analytics.
Best Fit For
Retail and institutional users managing crypto assets securely.
Pricing: Free wallets; trading and transaction fees apply
- Website: blockchain.com
- Phone: +44 20 7193 4113
- Address: 5 Bonhill Street, London EC2A 4BX
- Email: support@blockchain.com
Review: ★★★★☆
“Simple, secure, and trustworthy exactly what we needed in a crypto platform.”
8. Aventus Network – “Enterprise-Grade Blockchain for Real-World Assets”
Aventus Network is a London-based Layer-2 blockchain protocol that enhances Ethereum with high throughput and reduced fees. Originally designed to improve inefficiencies in ticketing and digital asset management, Aventus has since expanded into sectors like freight logistics, loyalty rewards, and enterprise transactions.
Its protocol provides scalable infrastructure while retaining Ethereum compatibility, making it ideal for businesses needing cost-effective, secure solutions. Aventus uses staking mechanisms and on-chain governance to maintain decentralisation while supporting corporate adoption.
The platform has processed millions of transactions and continues to gain traction with global enterprise partners. Its UK presence has made it a key player in Ethereum’s scalable future.
Primary Capability
Scalable Layer-2 blockchain infrastructure for business use.
Ideal Use Case
Companies needing Ethereum-compatible systems with faster throughput.
Pricing: Custom based on integration and usage
- Website: aventus.io
- Phone: +44 20 8126 4560
- Address: 1 Snowden Street, London EC2A 2DQ
- Email: contact@aventus.io
Review: ★★★★☆
“Aventus gave us the scalability we needed without compromising on Ethereum compatibility.”
9. Tech Alchemy – “Your Web3 Product Partner”
Tech Alchemy is a digital product studio based in Shoreditch, London, with a strong focus on blockchain and Web3 applications. The company partners with startups and enterprises to build fully functional decentralised apps, NFT marketplaces, and smart contract solutions.
Their approach combines product strategy, UI/UX design, and agile blockchain development, making them a one-stop-shop for launching digital products. With a fast-growing client base and a team skilled in Solidity, Rust, and React, Tech Alchemy delivers high-quality MVPs and scalable systems.
Their collaborative process and attention to detail have earned them recognition as one of London’s most trusted blockchain agencies. From initial concept validation to international scaling, Tech Alchemy delivers reliable, full-spectrum blockchain development services.
Technical Focus
Web3 product design and custom blockchain development.
Best For
Startups looking for end-to-end development and branding under one roof.
Pricing: Starts from £15,000 for MVPs
- Website: techalchemy.co
- Phone: +44 20 8133 8990
- Address: 35 Luke Street, London EC2A 4DP
- Email: hello@techalchemy.co
Review: ★★★★★
“They don’t just code; they think like product partners. Brilliant experience.”
10. Elliptic – “The Blockchain Intelligence Company”
Elliptic is a leading London-based blockchain analytics firm that helps businesses and regulators detect and prevent financial crime in the crypto space. Founded in 2013, Elliptic specialises in blockchain forensics, anti-money laundering (AML) compliance, and transaction monitoring tools for digital assets.
Its advanced platform is trusted by crypto exchanges, financial institutions, and law enforcement agencies worldwide. Elliptic’s software provides deep visibility into blockchain activity, allowing users to trace illicit transactions and ensure regulatory compliance.
The company has contributed to shaping crypto policy in the UK and beyond, actively working with the Financial Conduct Authority (FCA). With growing demand for regulatory tech, Elliptic continues to play a crucial role in securing the blockchain ecosystem.
Primary Expertise
Blockchain analytics and crypto transaction monitoring.
Well-Suited For
Exchanges, banks, and regulators requiring crypto compliance tools.
Pricing: Enterprise pricing available on request
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Website: elliptic.co
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Phone: +44 20 3911 1239
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Address: 130 Wood Street, London EC2V 6DL
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Email: info@elliptic.co
Review: ★★★★☆
“Their blockchain intelligence tools gave us the insights we needed to stay fully compliant and ahead of threats.”
What Services Do These London Blockchain Companies Offer?
The top blockchain companies in London offer a wide array of services, covering everything from consulting and advisory to full-stack development. A significant number of these companies focus on smart contract solutions, enabling businesses to automate workflows and reduce reliance on intermediaries.
Others focus on creating decentralised platforms that support use cases like digital wallets, NFT marketplaces, and decentralised finance.
Consulting is also a key area, with several companies helping traditional firms understand and implement blockchain strategies aligned with their business goals. Enterprise blockchain solutions are another strength, particularly among companies like R3 and Quant Network, which build private, permissioned platforms for regulated industries.
How Do These Companies Contribute to the UK’s Blockchain Ecosystem?
The role of these companies extends beyond just delivering technology they actively shape the blockchain community in the UK. Many collaborate with government institutions, contribute to academic research, and engage in public-private partnerships to promote blockchain innovation.
For instance, Outlier Ventures runs extensive accelerator programmes that nurture early-stage blockchain startups. Similarly, companies like R3 and Blockchain.com play a major role in financial innovation, providing infrastructure that powers digital asset exchanges and banking operations. These efforts help London maintain its status as a European leader in decentralised technologies.
What Should You Consider When Choosing a Blockchain Firm in London?
Choosing the right blockchain partner can determine the success or failure of a project. It’s important to evaluate a firm’s experience, the industries they’ve worked in, and the technologies they specialise in.
A good track record in smart contract development, blockchain integration, and post-launch support should be prioritised.
Moreover, understanding whether the company uses platforms like Ethereum, Hyperledger, or their own proprietary systems can help in assessing compatibility with your business needs.
Pricing, while important, should be weighed against the potential return on investment, scalability of the solution, and ongoing support. Regulatory awareness is another crucial factor, especially in the UK’s tightly governed financial environment.
How Is the Future Looking for Blockchain Startups in London?
The future for blockchain startups in London looks exceptionally bright. The city has seen a surge in venture capital activity focused on Web3 and decentralised solutions. Startups are exploring everything from decentralised finance to blockchain-based gaming, with many choosing London as their base due to its favourable business conditions and access to global markets.
Government agencies have also begun to recognise the potential of blockchain, with various initiatives aimed at fostering innovation while ensuring compliance. As artificial intelligence and blockchain continue to converge, there is growing interest in hybrid solutions that use both technologies to offer more advanced and secure systems.
Why Is London Becoming a Hotspot for Blockchain Innovation?
London’s appeal lies in its unique blend of finance, technology, and regulation. The city provides unparalleled access to venture capital, a steady pipeline of tech talent from universities, and a startup-friendly infrastructure. Its legal and regulatory frameworks are robust yet adaptable, allowing blockchain companies to operate with clarity and confidence.
Moreover, the multicultural and global outlook of the city attracts entrepreneurs and developers from all over the world. The result is a dynamic ecosystem where innovation thrives, collaboration is frequent, and the pace of technological advancement remains high.
Conclusion
As blockchain technology continues to disrupt traditional systems, London stands out as a beacon of innovation. The top blockchain companies in London are not only developing the tools and platforms of tomorrow but also shaping the narrative around how we perceive trust, transparency, and decentralisation.
Whether you’re a business ready to transition into Web3, a developer seeking career opportunities, or an investor looking to support the next tech giant, these companies offer a solid starting point. London’s blockchain future looks promising and these organisations are leading the way.
FAQs About Blockchain Companies in London
How do I verify the credibility of a blockchain company in London?
You can assess credibility by checking client reviews, analysing case studies, and confirming the company’s registration and track record through directories like Clutch or Google Business.
Are these companies only focused on cryptocurrency?
While some began in crypto, most now offer broader solutions like smart contracts, supply chain systems, and enterprise data platforms beyond digital currencies.
Which blockchain platform is most used by UK companies?
Ethereum remains the most popular due to its flexibility and large developer community, though Hyperledger is also common in enterprise environments.
How much does blockchain development cost in London?
Costs typically start from £10,000 for smaller projects and can exceed £250,000 for complex, enterprise-grade platforms.
Can startups approach these companies for MVP development?
Yes. Firms like Tech Alchemy and SettleMint are especially supportive of startups and provide MVP development tailored to quick market launches.
Is blockchain legal and regulated in the UK?
Blockchain technology is legal in the UK, with oversight mainly focused on its financial applications under FCA guidelines and GDPR for data handling.
Are these companies hiring blockchain developers in London?
Most of the top firms are continuously recruiting, with roles ranging from smart contract developers to blockchain architects and security analysts.