Quantstamp is a smart contract security company that is developing the Quantstamp protocol and automated security tools, and conducts manual audits. It is a protocol that extends Ethereum's smart contract functionality and audits for security.
Quantstamp is a protocol designed to ameliorate smart contract security concerns on Ethereum by optimizing for scalable, cost-effective security audits of all smart contracts on Ethereum. The motivation behind Quantstamp development was to increase the reliability and usability of Ethereum smart contract by providing an extra guarantee of security despite the occasional design complexity and nascent design of the protocol. Quantstamp implements an automated verification system for Solidity programs and an automated bounty payout system to reward human participants for finding errors in smart contracts.