Certora

Certora is a private company specializing in formal verification of smart contracts on blockchain networks. Its core technology mathematically proves the correctness of smart contract code before deployment, catching vulnerabilities and bugs that traditional testing can miss.

Certora's primary product is Certora Prover, a formal verification tool for smart contracts written in Solidity, the main programming language for Ethereum. The tool allows DeFi (decentralized finance) protocol developers to write formal specifications and mathematically verify that their code satisfies them. Known customers include major DeFi protocol teams such as Aave, Compound, and MakerDAO, which have used Certora Prover to audit their contract code.

Certora Prover is the flagship product. It operates using SMT solver-based logic and allows users to define rules and properties in a dedicated specification language called CVL (Certora Verification Language). Alongside the automated tool, the company also offers smart contract security audit services.

Certora operates out of Israel, with most of its technical team based there. Detailed public information on headcount, funding figures, and exact office locations is limited.