ZenLedger is a cryptocurrency tax software company that provides tools for calculating cost basis and capital gains. They offer individual tax plans and a tax professional suite for clients to prepare and file taxes on their crypto investments. ZenLedger supports tracking trades, seeing profits/losses, and ensuring accurate tax reporting. They have integrations with over 400 exchanges, 100 DeFi protocols, and 10 NFT platforms. ZenLedger aims to simplify DeFi, NFT, and crypto taxes for investors and tax professionals.