Top California Blockchain Companies (274)
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...
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...
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.
BitGo is the leader in digital asset financial services, providing institutional investors and crypto platforms with liquidity, custody, and security. In 2020, the company reached new milestones with the launch of BitGo Prime, the first and only deeply integrated, full-stack solution with custody, trading and lending. With the launch of BitGo Portfolio and BitGo Tax, the company also manages activities across...
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.
Anchorage Digital was founded in 2017 to advance institutional participation in digital assets. With an emphasis on security and usability, we provide the technology, infrastructure, and tools that make it easy for institutions across the world to participate in crypto. Our team brings together the brightest minds from security, finance, and distributed systems to build the infrastructure of a new financial...
It’s rare that a new asset class is born. Nevertheless, we’re witnessing exactly that with the rise of crypto. Over just the last few years, since Bitwise was founded, crypto has evolved from an embryonic $50B market to a growing $3T+ juggernaut. At Bitwise, we believe that crypto has reached a turning point, and is headed north of $10T over...
At Backpack, we ship relentlessly to bring you products that make using crypto easy, rewarding, and enjoyable. We offer a globally regulated exchange with a strong focus on compliance and a self-custodial wallet and browser extension. With over 1 million users, we’re just getting started. We're hiring! --> jobs.backpack.app
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...
Frustrations with filing crypto taxes It all started with trying to be compliant when reporting taxes on crypto gains, a nearly impossible task. Our founders envisioned a future where modern API-powered technology automates data ingestion, calculation, and required information and financial reporting. Enable digital assets for the global economy Blockchain, crypto, and tokenized assets are helping modernize financial infrastructure and money movement around...
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...
Saga is recognized as one of the best developer ecosystems in crypto, and probably the best in web3 gaming. Its mission is to help creators unblock themselves and build where blockspace is at its most plentiful and simple. Saga dismantled then rebuilt mainframes in a new way to create the developer environment of the future.
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...
Quest Global technologies is an award winning company which works on Blockchain, Salesforce, ERP Implementation, Mobile App Development, Website Development and Custom Software Development. Quest Global Technologies works on a mission of increasing the sales and decreasing operational cost with the help of digitization. With a team of 50+ strong people across US, Romania, Canada, Australia and India, the company...
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.
A Web3 social media ecosystem that lets users collaboratively create and monetize digital assets with complete control
Aptos Labs is a people-first blockchain on a mission to help billions of people achieve universal and fair access to decentralized assets in a safe and scalable way. Founded by some of the original creators and maintainers that researched, designed, and built the Diem blockchain to serve this purpose, we have dedicated several years toward this mission. We believe the open-source...



































