Top California Blockchain Companies (274)
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...
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...
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...
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...
Bitcoin is the best money. It should be used like it. We build and fund free, open-source projects aimed at making bitcoin the planet’s preferred currency.
Online reputation management in the Blockchain ecosystem. Expanding online presence for startups and well-recognized companies. Mostly in FinTech, Trading, Blockchain, SaaS niches. Boosting companies to the top 10 of their business categories on review platforms partnered with Google, increasing trust scores for stock trading, wallets, cloud mining, SaaS, mining equipment sellers, ICOs, DeFi, DEX, any blockchain, web3 projects, and startups on...
Securitize is a global fintech, Top 50 blockchain company, with a mission to provide investors with access to invest in and trade alternative assets, and for companies to raise capital and offer shareholder's liquidity. Securitize has pioneered a fully digital, regulatory compliant, end-to-end platform for issuing, managing and trading digital asset securities (also known as security tokens), with over 200...
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Harmony is a fast and scalable blockchain. Harmony recently launched on Binance and shipped Day ONE Mainnet. We are crazily recruiting Rust/Go language enthusiasts, protocol researchers and database hackers. Apply at harmony.one/careers! See https://harmony.one/whitepaper for our latest research and roadmap. Harmony is a fast and secure blockchain with key innovations in state sharding and peer-to-peer networking. Its sharding uses secure proof-of-stake and...
The first and most experienced company in bitcoin payments, BitPay builds powerful tools for spending, accepting, and building with bitcoin. The company has offices in North America, Europe, and South America and has raised over $70 million from top investors including Index Ventures, Aquiline Technology Growth, Menlo Ventures, Founders Fund, and Sir Richard Branson.
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...
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.
Halliday is a blockchain company and product lab working to create a unified, cross-chain payments ecosystem. Its flagship product, Halliday Payments, is a unified payments platform that makes it easy for users to onramp, swap, and take other onchain actions. Halliday’s products are built on the Workflow Protocol, which removes the need to code smart contracts by hand and enables...
We are developing Lightning: an open protocol layer that leverages the power of blockchains and smart contracts to make cheap, fast, private transactions available to anyone around the world.
Subzero Labs is the original contributor behind Rialo, the Real World Blockchain. Our team comprises experienced builders and researchers from leading organizations across blockchain infrastructure and hyper-growth products. Collectively, we have contributed to some of the most foundational projects in the ecosystem. Today, we are focused on designing a next-generation blockchain architecture that transcends incremental innovation.
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...
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A Web3 social media ecosystem that lets users collaboratively create and monetize digital assets with complete control
Ripple provides one frictionless experience to send money globally using the power of blockchain technology. By joining Ripple’s growing global network, financial institutions can process their customers’ payments anywhere in the world instantly, reliably and cost-effectively. Banks and payment providers can use the digital asset XRP to further reduce their costs and access new markets. Founded in 2012, Ripple's vision...
Trojan builds client-centric trading tools which cater across the gamut, from new users to professional traders. Since launch, we’ve processed $30b in trading volume and attracted over 3 million users. Unique among competitors, our architecture is built from the ground-up to be the fastest and most accurate on the market. Trojan’s mission is to bring the centralized exchange trading experience, but...
Together Labs redefines social networking by pairing blockchain innovation with technologies that empower users across the globe to connect, create and earn in the metaverse. The Together Labs portfolio of products include: IMVU, the world’s largest friendship discovery and social metaverse platform; WithMe, a mobile metaverse platform now in open beta built on insights from the science of friendship; and...
