Quantstamp vs Sigma Prime
A detailed head-to-head comparison of Quantstamp and Sigma Prime — pricing, features, and which one wins for different use cases.
Quantstamp
Veteran audit firm with 1,000+ audits and strong ongoing communication
Quantstamp is one of the longest-running smart-contract audit firms, having secured well over a thousand projects and billions of dollars in value since the early days of DeFi. It's best suited to tea…
Full review →Sigma Prime
Ethereum-core security firm behind the Lighthouse consensus client
Sigma Prime is a security and Ethereum-core engineering firm best known for building Lighthouse, one of the leading Ethereum consensus (beacon chain) clients — which gives it extraordinarily deep expe…
Full review →Feature Comparison
| Feature | Quantstamp | Sigma Prime |
|---|---|---|
| Manual Audit | ✓ | ✓ |
| Automated Scanning | ✓ | ✓ |
| Continuous Monitoring | ✓ | ✗ |
| Upgrade Management | ✗ | ✗ |
| Multi Sig Governance | ✗ | ✗ |
| Public Reports | ✓ | ✓ |
| Emergency Response | ✓ | ✓ |
| Contract Library | ✗ | ✗ |
| Formal Verification | ✗ | ✓ |
| Bug Bounty Management | ✗ | ✗ |
Quantstamp Pricing
Quantstamp
Audit Engagement
Custom
- ✓Manual smart-contract audits
- ✓Protocol security reviews
- ✓Ongoing communication + incident tracking
- ✓Monitoring services
- ✓Quote-based engagements
Sigma Prime Pricing
Sigma Prime
Audit Engagement
Custom
- ✓Manual EVM + protocol audits
- ✓Ethereum-core engineering depth
- ✓Consensus-adjacent expertise
- ✓Public reports
- ✓Quote-based engagements
Verdict: Which Should You Choose?
Quantstamp is the better pick if you need 1,000+ audits and a long track record. Sigma Prime wins when builds lighthouse — deep ethereum-core expertise. Both are production-ready — the right choice depends on your team's workflow and budget.