List of blockchain companies and projects

Bitcoin is a cryptocurrency and a digital payment system invented by an unknown programmer, or a group of programmers, under the name Satoshi Nakamoto. It was released as open-source software in 2009.

Cryptocurrency company developing a quantum secure decentralised network for crypotocurrency and blockchain networks.

Ethereum is an open-source, public, distributed blockchain computing platform featuring smart contract (scripting) functionality, which facilitates online contractual agreements.

Coinbase is a digital asset exchange company headquartered in San Francisco, California. It operates exchanges of Bitcoin, Bitcoin Cash, Ethereum, and Litecoin.

Spacemesh is a blockmesh infrastructure using the proof-of-space-time (PoST) consensus protocol. It allows users to participate via mining with their personal computers.

CryptoKitties is a game built on the Ethereum blockchain in which users can collect and trade digitally scarce virtual cats.

National Digital Asset Exchange Inc. (NDAX) is a Canadian-based digital asset trading platform founded in 2017 that allows individuals and institutions the ability to buy and sell Bitcoin and other cryptocurrencies.

Lisk is a peer-to-peer blockchain platform for the development of decentralized applications. It utilizes a delegated-proof-of-stake consensus and uses sidechains to run each decentralized app.

A venture capital firm in New York that focuses on supporting bitcoin and blockchain companies by leveraging insights, network, and access to capital

Algorand is a company implementing an open source public ledger and cryptocurrency payment system utilizing the Byzantine Agreement message-passing protocol to reach consensus among network participants.

Axie Infinity is an NFT gaming platform and marketplace.

Bitcoin Suisse AG is a Swiss-regulated financial intermediary specializing in crypto-financial services, based in Zug, Switzerland.

Bitstamp is a cryptocurrency exchange that was founded in 2011 by Nejc Kodrič and Damijan Marlak.

Medicalchain is a blockchain platform for securely storing medical records.

Ripple is a global currency exchange and remittance network that aims to lower the cost and improve the speed of international bank transfers relative to legacy financial infrastructure.

Core Scientific is a company offering blockchain and artificial intelligence hosting, transaction processing, and application development.

Swirlds is a distributed ledger platform for distributed applications. Swirlds uses a unique consensus algorithm called hashgraph, developed by Leemon Baird.

TransferWise is a company that offers money transfers services founded by Kristo Käärmann and Taavet Hinrikus.

MediBloc is a blockchain-based healthcare information ecosystem that is headquartered in Gibraltar, and was founded in 2017 by Allen Wookyun Kho and Eunsol Lee.

Helium Systems is a San Francisco-based wireless network and blockchain company developing a peer-to-peer wireless network.

Circle is a peer-to-peer payments technology company that is headquartered in Boston, Massachusetts and was founded in 2013 by Jeremy Allaire and Sean Neville.

TokenPocket is a multi-blockchain wallet.

PolySwarm is a decentralized marketplace that runs on a token called Nectar (NCT).

Lakran is a decentralized blockchain application based on the CryptoNight algorithm

Union Square Ventures is a venture capital firm in New York City which has backed companies such as Twitter, Foursquare and Zynga.