Quantstamp vs Zellic
A detailed head-to-head comparison of Quantstamp and Zellic — 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 →Zellic
Research-led security firm strong on novel protocols, ZK, and Rust
Zellic is a fast-rising, research-led security firm that has built a strong reputation for auditing cutting-edge and unconventional systems — novel DeFi protocols, zero-knowledge circuits, Rust-based …
Full review →Feature Comparison
| Feature | Quantstamp | Zellic |
|---|---|---|
| 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
Zellic Pricing
Zellic
Audit Engagement
Custom
- ✓Manual audits (EVM + non-EVM)
- ✓Solana/Rust + ZK expertise
- ✓Novel protocol reviews
- ✓Technical public research
- ✓Quote-based engagements
Verdict: Which Should You Choose?
Quantstamp is the better pick if you need 1,000+ audits and a long track record. Zellic wins when research-led, strong on novel/hard targets. Both are production-ready — the right choice depends on your team's workflow and budget.