Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research.
Three Sigma
Three Sigma audits blockchain code and DeFi systems, reporting security findings and services for Web3 projects.
About Three Sigma
Three Sigma provides security audits for blockchain projects, covering smart contracts and DeFi systems. Code security services include audits for Solidity, Rust, and Move contracts, as well as dApps, bridges, protocols, and OpSec reviews.
It also offers economic and risk services such as tokenomics audits, mechanism design reviews, ecosystem risk assessments, staking design reviews, DAO audits, and points and incentives program design. The site publishes case studies that list audit date, language, and number of issues found, and new engagements start with a quote request.
Key features
- Smart contract audits for Solidity, Rust, and Move codebases
- dApp, bridge, and blockchain protocol security reviews
- OpSec audits for operational security practices
- Tokenomics and economic audits and mechanism design reviews
- Ecosystem risk assessments and DeFi strategic research
- Case studies showing audit date, language, and issues found
Best for: Web3 teams seeking audits for smart contracts, DeFi protocols, or token economic design.
Good for
- Covers Solidity, Rust, and Move contracts plus bridges and protocols
- Offers economic reviews alongside code audits, including tokenomics and mechanism design
- Shares past audit examples with dates, languages, and issue counts
Three Sigma at a glance
- Website
- threesigma.xyz
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Open source
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Three Sigma FAQ
What codebases does Three Sigma audit?
Smart contracts in Solidity, Rust, and Move, plus dApps, bridges, protocols, and OpSec.
Does it offer services beyond code review?
Yes, including economic audits, tokenomics audits, mechanism design reviews, ecosystem risk assessments, staking design reviews, DAO audits, and incentives program design.
How do clients start an engagement?
By submitting a quote request through the website contact option.
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