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Top United States Blockchain Companies (696)

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Blockchain • Information Technology • Software • Cryptocurrency • Web3
2 Offices
200 Employees

Alchemy powers the top blockchain companies globally and has been featured in TechCrunch, Forbes, Bloomberg, and elsewhere. Our mission is to bring web3 to a billion people, by providing builders with the tools they need to build exceptional onchain products. Alchemy is the only complete developer platform that offers the powerful APIs, SDKs, and tools necessary to build and scale onchain apps and rollups. Our infrastructure powers 70% of the top web3 teams, 90%+ of web2 companies building in web3 and 100+ million end users. Our customers include top web3 brands like Polymarket, OpenSea, Circle, WorldCoin, as well as major global brands like Shopify and Adobe. The Alchemy team draws from decades of deep expertise in massively scalable infrastructure, AI, and blockchain from leadership roles at leading companies and universities like Google, Microsoft, Facebook, Stanford, and MIT. We're backed by the world's leading VCs and institutions, including Lightspeed, Silver Lake, a16z, Coatue, Pantera, Addition, Stanford University, Coinbase, and Charles Schwab, among others.


Blockchain • Internet of Things • Payments • Cryptocurrency • Web3
Fully Remote, USA
650 Employees

Chainlink Labs is the leading provider of secure and reliable Web3 services that have enabled trillions of dollars in transaction value across DeFi, insurance, gaming, NFTs, and other major industries. Chainlink Web3 services enhance smart contracts by connecting them to real-world data sources and off-chain computation across any blockchain and provide global enterprises with a universal gateway to all blockchains. Chainlink Labs is dedicated to the development and integration of Chainlink as the industry-standard Web3 services platform connecting the world to blockchains. At Chainlink Labs, we empower the broader Chainlink community and build world-class Web3 solutions with global enterprises such as AWS, Google, T-Systems, and leading development teams at the forefront of the smart contract ecosystem, including Aave, Compound, Synthetix, GMX, and many more. Through a fusion of cutting-edge academic research and an industry focus on user needs, our mission is to enable the next generation of smart contracts and build a world powered by truth.


Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
19 Offices
12,000 Employees

Block, Inc. (NYSE: SQ) is a global technology company with a focus on financial services. Made up of Square, Cash App, Spiral, TIDAL, and TBD, we build tools to help more people access the economy. Square helps sellers run and grow their businesses with its integrated ecosystem of commerce solutions, business software, and banking services. With Cash App, anyone can easily send, spend, or invest their money in stocks or Bitcoin. Spiral (formerly Square Crypto) builds and funds free, open-source Bitcoin projects. Artists use TIDAL to help them succeed as entrepreneurs and connect more deeply with fans. TBD is building an open developer platform to make it easier to access Bitcoin and other blockchain technologies without having to go through an institution.


Blockchain • Fintech • Security • Software • Cryptocurrency • Cybersecurity • Web3
Fully Remote, USA
40 Employees

Hiro is a company that creates developer tools for Stacks, a network that enables apps and smart contracts for Bitcoin. As a core entity within the Stacks Ecosystem, Hiro works alongside various independent entities, developers, and community members to establish a user-owned internet on Bitcoin. Hiro provides developers with the tools to innovate and build on Bitcoin in ways previously not possible.


AdTech • Blockchain • Digital Media • eCommerce • Machine Learning • NFT • Web3
Carbondale, Colorado, USA
120 Employees

SmartMedia Technologies (SMT) is reshaping the landscape of customer engagement and loyalty to help some of the world’s major enterprises to drive better business outcomes. SMT is the only complete end-to-end solution that bridges the gap between Web2 and Web3, making Web3 safe, easy and valuable for brands and fun, open and rewarding for consumers. Over 50 partners, including Accenture, Dentsu, NBA, PepsiCo, Unilever, Visa and WPP, leverage SMT’s enterprise SaaS engagement and loyalty platform to deliver immersive, gamified and personalized experiences - at scale. SMT also owns and operates the professional services companies FASTG8, Media Design Group and SmartMedia Labs, which are all powered by the SmartMedia Stack - a Self-Serve Audience Activation and Real-Time Programmatic SmartMedia Buying Platform.


Blockchain • Fintech • Mobile • Payments • Software • Financial Services
12 Offices
3,500 Employees

Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic app, bringing a better way to send, spend, invest, borrow and save to our millions of monthly active users. With a mission to redefine the world's relationship with money by making it more relatable, instantly available and universally accessible.


Blockchain • Fintech • Payments • Cryptocurrency
5 Offices
713 Employees

Nium is an advanced payments platform redefining the way consumers and businesses send, spend, and receive funds across borders. Nium’s goal is to make the movement of money seamless through being a universal plug for financial services. The company uses agile, elegant, and modular solutions for complex business problems. Be it an Individual, new-age digital bank, or a traditional industry behemoth, Nium prides itself on creating financial infrastructure for every level of sophistication. Nium’s key solutions: • Pay-ins • Pay-outs • Card issuance • Banking-as-a-service • Crypto-as-a-service We are a global leader in B2B modern money movement • Launched the world’s first global platform for crypto-as-a-service • $280M Funding • Series D • $2B Valuation o 130+M End customers o 190+ Payout markets o 100+ Supported currencies • Named on CB Insight’s Fintech 250 List • Financial Times’ List of Asia-Pacific High-Growth Companies 2021 • Fintech Employer of the Year’ at the 2021 Singapore Fintech Festival • Best B2B Payment Platform’ at the 2021 Future Digital Awards


Blockchain • Software • Web3
San Francisco, California, USA
34 Employees

About Us O(1) Labs is a blockchain technology company that has successfully incubated the Mina Protocol. Using Mina, we are now building a private and secure way to access Web3 as the world’s premier zero-knowledge application platform. Founded in 2017, we are a remote and global company. Our Hiring Philosophy We're building the next generation of web interfaces. Diversity of background, skills and opinion will be central to our success and are an integral part of our recruiting and hiring process. Follow us for updates on the industry, job postings, and profiles on our world class team of engineers, cryptographers and operators.


Blockchain • Cryptocurrency
New York, New York, USA
87 Employees

Blockchain technology and its associated currencies and markets will be the infrastructure on which much of the world's economic future will be built. We are creating a community, The Block, to cater to enthusiasts of blockchain technology and cryptoassets. It will be the on-ramp to the world of programmable money, distributed ledgers and decentralized applications for 10s of millions of people. Utilizing token-based incentives, The Block will cut through the noise and surface signal in an accessible way across key areas of blockchain and cryptoassets: social engagement and discourse, market information, media, education and much more. Everyone should have access and an opportunity to participate in the next great expansion of the internet driven by blockchains and cryptoassets. The Block will provide access for the next billion.


Blockchain • Information Technology • Logistics • Social Impact
Houston, Texas, USA
52 Employees

Topl is an ESG technology company that is building a blockchain ecosystem to prove a business’ ethical and sustainable business practices.


Blockchain • Fintech • Software
New York, New York, USA
140 Employees

21.co is the world’s leader in providing access to crypto through simple and easy to use products. 21.co is the parent company of 21Shares and Amun, and its mission is to build bridges into the crypto world. 21Shares is the world’s largest issuer of cryptocurrency exchange traded products (ETPs) and is powered by Onyx, a proprietary technology platform used to issue and operate cryptocurrency ETPs for 21Shares and third parties. 21Shares mission is to make crypto easy. Amun is a blockchain infrastructure company focused on making purchasing crypto more accessible by offering a suite of tools for passive strategies across major DeFi platforms. Amun’s mission is to simplify your crypto journey. The company was founded in 2018 by Hany Rashwan and Ophelia Snyder and is a global organization, with offices in Zurich and New York. Cathie Wood, Chief Executive Officer & Chief Investment Officer of ARK Invest is a board member.


Blockchain
Palo Alto, California, USA
30 Employees

Fueling blockchain, infinitely.


Blockchain • Web3
San Francisco, California, USA
71 Employees

Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the fastest Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets. The Sei Labs team is comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications. Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.


Blockchain • Software
Fully Remote, USA
32 Employees

Tools & infrastructure for more safe, open, performant blockchains


Blockchain • Information Technology
Fully Remote, USA
26 Employees

stakefish is the leading validator for Proof of Stake blockchains. With support for 10+ networks, our mission is to secure and contribute to this exciting new ecosystem while enabling our users to stake with confidence. Because our nodes and our team are globally distributed, we are able to maintain 24-hour coverage.


Blockchain • Financial Services
Fully Remote, USA
171 Employees

Exodus is a secure user-friendly crypto wallet and exchange where you can store, manage and trade all of your blockchain assets in one place. We are a one hundred percent remote company with people working for us across 44+ countries. We offer our team location autonomy and the option to choose their own hours. Come join us help half of the world exit the traditional financial system!


Blockchain • Fintech • Financial Services • Cryptocurrency
Austin, Texas, USA
90 Employees

Founded in 2016, Unchained is a top 10 bitcoin platform in the US by assets that has helped thousands of individuals and businesses truly own their wealth by holding bitcoin keys. Unchained's collaborative custody model allows clients to access financial services while continuing to have the benefits of self-custody, the ultimate consumer protection in these uncertain times.


Artificial Intelligence • Blockchain • Cryptocurrency
Fully Remote, USA
288 Employees

Worldcoin is a new, decentralized global currency that will be distributed fairly to as many people as possible. Worldcoin will launch by giving a free share to everyone on Earth. We believe that this is an essential step to accelerate the transition towards a more inclusive global economy, providing new ways for everyone to share future prosperity.


Blockchain • Information Technology • Software
Los Angeles, California, USA
10 Employees

Tixologi’s blockchain-based ticketing software is putting event organizers in control of their own ticketing experience


Blockchain • Cryptocurrency • NFT • Web3
Fully Remote, USA
21 Employees

The core development team supporting the growth and success of the Goldfinch protocol: goldfinch.finance. We believe crypto will reshape the global economy and expand access to capital around the world. We are building the tools and technology to make that possible.