Sigma Prime
Blockchain security firm that audits smart contracts, protocols and infrastructure and builds the Lighthouse client.
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Sigma Prime key facts
| Category | Security and compliance |
|---|---|
| Platforms | Web |
| Launched | 2016 |
| Open source | Yes, Lighthouse under Apache 2.0 |
| Company | Blockchain security and infrastructure firm; founder Mehdi Zerouali |
What is Sigma Prime?
Sigma Prime is a blockchain security and infrastructure firm established in 2016. It audits smart contracts in Solidity, Vyper, Rust and Move, blockchain protocols and infrastructure, and states 400+ projects audited. It also builds Lighthouse, an Ethereum consensus client open-sourced under Apache 2.0.
Sigma Prime pros and cons
- 400+ projects audited and 6,500+ findings, per its homepage
- Audits offchain infrastructure too: signers, validators, CI/CD
- Built Lighthouse, an Apache 2.0 Ethereum consensus client
- No published pricing
- Contract audit languages listed stop at Solidity, Vyper, Rust and Move
Sigma Prime FAQ
What is Sigma Prime?
Sigma Prime is a blockchain security and infrastructure firm established in 2016. It audits smart contracts in Solidity, Vyper, Rust and Move, blockchain protocols and infrastructure, and states 400+ projects audited. It also builds Lighthouse, an Ethereum consensus client open-sourced under Apache 2.0.
Sources
How this page works
Sources: Sigma Prime: official site, Sigma Prime: Homepage, Sigma Prime: Lighthouse on GitHub. Data as of Sep 26, 2026.
Not affiliated with any project listed. Educational content, not financial advice.