Top California Blockchain Startups (224)
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.
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.
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...
Blockstream’s mission is to create the financial infrastructure of the future. We build crypto-financial infrastructure based on Bitcoin, the most robust and secure blockchain. Applying cutting-edge cryptography and security engineering, we’re building the products and networks that make financial markets more efficient by reducing reliance on trust. With a long term outlook on delivering robust and scalable solutions, we invest...
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.
Courtyard.io leverages blockchain and NFTs to transform the way physical assets are collected and traded.
AI expert that understands your codebase, as an API. Greptile can review your pull requests, answer questions about your codebase, write descriptions for JIRA tickets and more.
Akash Network is a decentralized peer-to-peer marketplace for cloud compute and provides a fast, efficient, and low-cost application deployment solution. Akash Network is the world’s first decentralized and open cloud https://linktr.ee/Akashnet Known as the "Airbnb for Cloud," Akash Network provides a fast, efficient, and low-cost application deployment. Developers leveraging Akash Network can access cloud computing at up to 3x less than the...
Hivemapper is a decentralized, ever-updating map built by people, using dashcams, who soon will mine our cryptocurrency, HONEY. This new mapping economy represents a fundamental shift in how maps are built and who owns them, sharing the economic benefits of a global map with those who are building it. Forward looking businesses use our Map API.
Lightspark is the easiest, low-cost, most reliable, enterprise-grade way to send and receive payments globally, enabling money to move just like bits and bytes do on the Internet. We're delivering open payments for the Internet at scale, using the Lightning Network. We aim to help businesses around the world benefit from real time payments and build amazing new experiences for...
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...
It all started with a challenge. We were enthralled by blockchain technology and its potential to change everything on the internet, but saw that it was hampered by terrible performance. We recognized pretty early on that just attempting to make a single faster blockchain wasn’t the best solution. To truly reach web-scale on Ethereum, we would need to scale horizontally. In...
Azra Games believes that the childhood experience of bashing, smashing, and storytelling with your favorite toys in unhinged and imaginative play is the purest form of gaming. We are on a mission to recapture that freedom for the modern era with kickass collectibles and combat RPGs powered by Web3 technology. LFG! We are both gamers and crypto natives. Founded by virtuoso...
A Web3 social media ecosystem that lets users collaboratively create and monetize digital assets with complete control
Gauntlet’s mission is to drive understanding and participation in the financial systems of the future. Building decentralized systems creates new challenges for protocol developers, smart contract developers, and asset holders that are not seen in traditional development and investing. Gauntlet has created a blockchain simulation and testing platform that leverages battle tested techniques from other industries to build financial models...
0G is the largest AI Layer 1 blockchain, purpose-built to power the future of decentralized AI. Its modular architecture separates data storage from data publishing, delivering unmatched scalability, with data throughput of 50 GB/second—50,000x faster and 100x cheaper than competitors. This makes 0G the foundation for high-performance AI applications, scalable L2s, and on-chain autonomous agents. By democratizing access to AI...
