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Top Blockchain Companies in London (157)

Block
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Block builds technology for economic empowerment.

Block, Inc. is a global technology company with a focus on financial services. Made up of Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, Block, Inc. builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the...

Block

Block's Top Stability & Growth Strengths

Profitability: Record adjusted operating income and margin accompanied the growth, with management lifting 2026 adjusted operating income guidance to a higher margin level. Operating leverage was emphasized alongside strong second‑quarter results.

Resilient & Sustainable Growth: Gross profit accelerated year over year into Q2 2026 (after an even stronger Q1), and full‑year 2026 gross profit guidance was raised meaningfully. Leadership framed gross profit as the clearer indicator of underlying momentum given revenue mix effects.

Cost & Operational Efficiency: Efficiency measures, including running a leaner organization, boosted margins and contributed to record profitability. Leaders also pointed to continued strength into the second half with healthy monetization and risk metrics, indicating efficient scaling.

Mastercard
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
We are a global technology company in the payments industry.

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

Mastercard

Mastercard's Top Stability & Growth Strengths

Strong Revenue Growth: Net revenue rose 14% year over year in Q2 2026 (12% currency‑neutral) to $9.3B, with first‑half 2026 up 15% and full‑year 2025 up 16% (15% currency‑neutral). These results indicate sustained top‑line momentum across recent periods.

Diversified Revenue Streams: Value‑Added Services & Solutions grew 20% in Q2 2026 (18% currency‑neutral) and 23% in 2025, outpacing Payment Network growth. This mix shift adds a faster‑growing second engine alongside the core network.

Resilient & Sustainable Growth: Transaction fundamentals remained healthy in Q2 2026—gross dollar volume +8% to $2.9T, cross‑border +12%, and switched transactions +9% (local‑currency). Multi‑year growth from 2025 into the first half of 2026 underscores durable momentum.

Euler Labs
Blockchain • Information Technology • Software
London
50 Employees

Euler Labs is a talented, international, and fully remote team of professionals who believe in DeFi’s promise and egalitarian ethos. We are backed by world-leading investors, and believe in the long-sighted promise of DeFi. Our mission is to build an integrated suite of customizable and permissionless protocols that, together, provides users with the highest performance environment in which to trade...

Euler Labs
Magicave
Blockchain • Gaming
Fully Remote
17 Employees

Crafting Digital Toys ∙ Building New Hobbies ∙ Empowering Communities

Magicave
Adhara
Blockchain • Fintech • Information Technology • Payments • Software • Financial Services
London
95 Employees

A decentralized, real time, multi-currency global liquidity management and international payments network based on tokenized money over a smart contract-enabled distributed ledger

Adhara
Cudo
Blockchain • Fintech • Information Technology • Software • Cryptocurrency
London
30 Employees

The World's First Global, Carbon-Neutral, Cryptocurrency Mining Software. We innovate. We care about our planet. We do good in the world. Our mission: To provide easy access to disruptive technologies. Our vision: To create the largest global distributed platform for good. We are committed to creating ethical, collaborative and transparent cryptocurrency business ventures. Our aim is to make a big...

Cudo
Supercede
Blockchain • Information Technology • Security • Software • Consulting
London
23 Employees

Supercede revolutionises the reinsurance value chain by offering cedents streamlined data preparation, brokers a consolidated deal management platform, and reinsurers access to qualified deals. With powerful analytics, global marketplace access, and seamless, secure collaboration, it enables more accurate risk assessments, better placements, and efficient deal executions for all parties. Supercede ensures reinsurance is efficient, transparent, and highly connected. Supercede is...

Supercede
ConsenSys
Blockchain • Software • Web3
11 Offices
900 Employees
25 Benefits
We unlock the collaborative power of communities by making Web3 universally easy to access, use and build on.

ConsenSys is a leading Ethereum and decentralized protocols software company. We enable developers, enterprises, and people worldwide to build next-generation applications, launch modern financial infrastructure, and access the decentralized web. Our product suite, composed of Infura, Quorum, Codefi, MetaMask, Truffle, Diligence and our NFT platform, serves millions of users, supports billions of blockchain-based queries for our clients, and has handled...

ConsenSys
Metrika
Blockchain • Analytics
5 Offices
43 Employees

Metrika is the industry leader in blockchain risk management, enabling proactive risk assessment and compliance across digital asset services. Implement strategic risk frameworks, navigate regulatory compliance, and protect operations with ongoing monitoring and surveillance. Learn more: www.metrika.co

Metrika
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BCB Group
Blockchain • Fintech • Payments • Financial Services • Cryptocurrency
2 Offices
151 Employees
Hiring Now

BCB Group is a leading crypto-dedicated payment services provider, serving many of the industry’s largest clients including Bitstamp, Crypto.com, Fireblocks, Galaxy, Gemini, Huobi and Kraken. BCB Group provides payment services in over 30 currencies, FX, cryptocurrency liquidity, digital asset custody and BLINC, which is BCB’s free, instant settlements network for the BCB client ecosystem. Responding to corporate and institutional demand...

BCB Group
ICONOMI
Blockchain • Fintech • Payments • Financial Services
London
33 Employees

The ICONOMI platform is designed to provide businesses or retail investors an entry point cryptocurrency market. The ICONOMI trade engine is built on top of exchanges, resulting in exchange diversification. It searches multiple global exchanges simultaneously to find you the best possible price for each transaction, both buys and sells. Our state-of-the-art platform technology provides you with the ability to...

ICONOMI
Kiln
Blockchain • Software • Cryptocurrency
London
115 Employees
1 Benefits

Kiln is the leading digital asset rewards management platform, enabling institutional customers to earn rewards on their digital assets, or to whitelabel earning functionality into their products. Our platform is API-first and enables fully automated validators, rewards, and data and commission management. With over $10 billion crypto assets being programmatically staked, Kiln has a particularly strong track record on Ethereum...

Kiln
Exohood Labs
Artificial Intelligence • Blockchain • Software • Quantum Computing
London
45 Employees

Exohood Labs Limited is the for-profit division of our organization, dedicated to harnessing the power of Artificial Intelligence, Quantum Computing and Blockchain technologies for the advancement of society. This subsidiary division of Exohood Labs was established to complement the non-profit entity founded in 2020. The purpose of Exohood Labs Limited is to enhance our research capabilities and ensure sustainable growth...

Exohood Labs
Elliptic
Blockchain • Financial Services • Cryptocurrency
2 Offices
181 Employees
Hiring Now

We help our customers make the crypto economy a safe place to transact and invest as crypto paves the way for a new, digital monetary system. Crypto businesses, financial institutions, and government turn to Elliptic for blockchain analytics, training, and certification to better manage financial crime risk in crypto.

Elliptic
Crurated
Blockchain • Marketing Tech
London
53 Employees

Crurated was born out of the desire to pursue and continue reliving the exciting moment that all wine lovers have in common - that first bottle that made us fall in love with wine. By bridging the gap between wine collectors and their favorite producers, and making bottles more accessible to enthusiasts, we have set out to create a new...

Crurated
Sweatcoin
Blockchain • Fitness • Healthtech • Software
146 Offices
200 Employees
Hiring Now

Sweatcoin is a health and fitness app that rewards users for their steps with a currency called Sweatcoin, which can be spent on rewards, donated to charity, or converted into $SWEAT.

Sweatcoin
Aurus - Empowering precious metals
Blockchain • Fintech • Software • Financial Services
London
17 Employees

Aurus empowers the traditional precious metals industry by offering blockchain-based products and services that revolutionize both the accessibility and usability of gold, silver and platinum. Precious metal businesses can now deliver new products to mass markets, broadening clientele and revenue. People around the world are able to easily buy, store and trade gold, silver and platinum in a highly fractionable,...

Aurus - Empowering precious metals
OpenTrade
Blockchain • Fintech • Software • Financial Services • Cryptocurrency • Web3
London
10 Employees

OpenTrade provides an institutional grade platform for lending and yield products designed for fintechs and institutional investors across Web2 and Web3 ecosystems. Our offerings combines a technology platform with legal and operational frameworks and services that together support safe, compliant, and scalable lending and yields products for the next generation of financial services & markets.

OpenTrade
NexGen Cloud
Artificial Intelligence • Blockchain • Cloud • Software
London
92 Employees
Hiring Now
The AI Factory. Accelerating the Future.

NexGen Cloud, founded in 2020, is a global leader in sustainable AI Cloud solutions, offering Data Sovereignty to its clients. Powered by 100% renewable energy, NexGen Cloud's expertise is rooted in the deployment and management of advanced AI infrastructure and cloud services. NexGen Cloud’s solutions are tailored to meet the diverse needs of AI enterprises and practitioners through a suite...

NexGen Cloud
5ireChain
Blockchain • Fintech • Information Technology • Financial Services • Cryptocurrency
London
109 Employees

5ire Token Launches on Dec 05! 5ire - Sustainable Distributed Computing 5ireChain is a layer-1 EVM compatible smart contract platform that focuses on developing a for-benefit blockchain ecosystem based on the Sustainable Development Goals (SDGs) defined by the United Nations (UN). 5irechain’s main goal is to create a user-centric sustainability-driven ecosystem. This is achieved by embedding sustainability in the consensus...

5ireChain

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