Veteran audit firm with 1,000+ audits and strong ongoing communication
Last updated: July 2026
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 teams that value a single provider with strong ongoing communication, clear reporting, and incident tracking throughout the engagement rather than a fire-and-forget review. Quantstamp covers smart-contract audits across EVM chains and beyond, blockchain protocol reviews, and offers additional services around monitoring and security consulting. Its longevity means broad experience across many protocol types and a recognizable name that carries weight with partners. The trade-offs: as a large established firm its pricing is at the professional end, some in the community debate whether the biggest-brand firms always match the sharpest boutique or contest-based reviewers on the hardest bugs, and turnaround depends on scheduling. But for projects wanting an experienced, communicative, well-known auditor with a deep track record, Quantstamp remains a solid and dependable choice.
Quantstamp
Custom
| Feature | Quantstamp |
|---|---|
| Manual Audit | ✓ |
| Automated Scanning | ✓ |
| Continuous Monitoring | ✓ |
| Upgrade Management | ✗ |
| Multi Sig Governance | ✗ |
| Public Reports | ✓ |
| Emergency Response | ✓ |
| Contract Library | ✗ |
| Formal Verification | ✗ |
| Bug Bounty Management | ✗ |
Quantstamp does not have a permanent free tier.
Quantstamp is used for veteran audit firm with 1,000+ audits and strong ongoing communication. It's primarily used by Web3 teams in the Smart Contract Auditors category.
See our full alternatives comparison at https://chainpick.io/alternatives/quantstamp.
Quantstamp has a rating of 4.5/5 based on 198 reviews. Key strength: 1,000+ audits and a long track record. Main limitation: Professional-end pricing.