NiceHash

Founded in 2014, NiceHash is the world's largest open marketplace for cryptocurrency mining hash power. Its core business is connecting sellers of computational power (miners) with buyers who wish to lease that power to mine cryptocurrencies of their choice. This peer-to-peer model allows users to participate in mining without owning specialized hardware. In addition to its primary hashrate brokerage service, NiceHash operates a full cryptocurrency exchange and provides a suite of mining software and tools, such as NiceHash Miner and QuickMiner, positioning itself as a comprehensive ecosystem for the crypto mining community. The company is also known for a significant security breach in 2017, after which it successfully reimbursed all affected users.