Zellic
4.8/5 Founded 2020 Team: 50+ $$$
About
Zellic is a security firm founded in 2020 by members of the top-ranked perfect blue CTF team, known for aggressive, exploit-oriented review across smart contracts, bridges, and ZK circuits. Its ZK practice covers circom, halo2, and zkVM codebases, and the firm was among the auditors engaged for Scroll's zkEVM circuits ahead of mainnet. Zellic publishes many of its reports in a public GitHub repository and writes detailed technical postmortems of vulnerabilities its team finds.
Specialties
zk circuits smart contracts bridges halo2 circom exploit development
Supported Chains
circom halo2 zkvm evm generic
Notable Audits
Scroll zkEVM (pre-mainnet circuit audits) LayerZero
Turnaround
2-6 weeks
Team Size
50+
Public Reports
Yes
- Last validated
- Jul 2026