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.

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

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.

Medicalchain is a blockchain platform for securely storing medical records.

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

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.

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

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

Dfinity is a decentralized computing network currently in development using blockchain technology and algorithmic governance.

Basic Attention Token (BAT) claims to improve the efficiency of digital advertising by creating a new unit of exchange between publishers, advertisers and users.

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.

Blend invites companies that service the mortgage industry to sell digital tools--APIs--through its platform.

Litecoin (LTC or Ł) is a open source peer-to-peer cryptocurrency forked from Bitcoin by creator Charlie Lee. A key difference from Bitcoin is the decreased block generation time.

Hyperledger is an open source effort by the Linux Foundation to create blockchain related tools and standards.

Aion or the Aion Network is an open source blockchain protocol built by the Aion Foundation that focuses on solving for scalability and interoperability across blockchains.

Hackers/Founders is based in San Jose, California and it specializes in advisory services.

A company designing a blockchain platform that aims to improve performance, security and privacy in cloud computing. Their encrypted smart contract platform is called Eikiden. Oasis Labs founders include Dawn Song (CEO), Bobby Jaros (COO), Noah Johnson (CPO) and Raymond Cheng (CTO).

(Formerly Chain Ph) Company implementing Blockchain, Artificial Intelligence, and Data Analysis to create transparent pharmaceutical industry

GazeTV is a social entertainment platform with built-in tokenomic incentives and reward functions.

Bitsequence is a people-powered, universal cryptocurrency platform.

Bluzelle is a decentralized database project for the creation of decentralized applications (dApps).

Zilliqa is a blockchain platform for decentralized applications under development with a focus on sharding to address blockchain scalability.