Research-led security firm strong on novel protocols, ZK, and Rust
Last updated: July 2026
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 chains and programs (including Solana), and complex cryptographic designs. Founded by researchers with competitive CTF and vulnerability-research backgrounds, Zellic is known for going deep on hard targets that stump more checklist-oriented auditors, and for publishing sharp technical research. It covers smart-contract audits across EVM and non-EVM ecosystems, with particular credibility on Solana/Rust and ZK work, and has audited a number of high-profile protocols. The trade-offs: as a newer firm it has a shorter (if impressive) track record than the decade-old incumbents, demand for its specialists means scheduling ahead, and engagements are premium-priced. But for projects building novel, technically demanding systems — especially on Solana, in Rust, or involving ZK — Zellic is one of the most respected modern choices, frequently recommended for exactly the kinds of codebases where standard audits fall short.
Zellic
Custom
| Feature | Zellic |
|---|---|
| Manual Audit | ✓ |
| Automated Scanning | ✓ |
| Continuous Monitoring | ✗ |
| Upgrade Management | ✗ |
| Multi Sig Governance | ✗ |
| Public Reports | ✓ |
| Emergency Response | ✓ |
| Contract Library | ✗ |
| Formal Verification | ✓ |
| Bug Bounty Management | ✗ |
Zellic does not have a permanent free tier.
Zellic is used for research-led security firm strong on novel protocols, zk, and rust. It's primarily used by Web3 teams in the Smart Contract Auditors category.
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Zellic has a rating of 4.7/5 based on 112 reviews. Key strength: Research-led, strong on novel/hard targets. Main limitation: Shorter track record than decade-old incumbents.