Perimeter's expertise in directed fuzzing uncovers what audits miss, keeping DeFi's largest protocols and smart contracts secure for today's launch and fortified for tomorrow's upgrades
Our Services

Offensive Fuzzing
- Flexible Timelines
- Uncover Deep Rooted Bugs
- Effortless Onboarding
- Frequent Communication
- Remediations Included
- Comprehensive Report

Defensive Fuzzing
- Everything in offensive fuzzing plus:
- Highest Level of Depth
- Complete Documentation
- Cost Efficient
- Ready for Long Term Use
- Seamless Integration

Bespoke
- Supporting but not limited to:
- Non-EVM Fuzzing
- Blockchain/DLT Fuzzing
- Building Dedicated Tooling
- Security Advisory
Our Methodology
Security Assessment Process
We collaborate closely with your team at every stage, ensuring business and code objectives are achieved securely and efficiently.
- No parallel reviews, full focus guaranteed
- Minimum one lead fuzzing specialist per engagement
- Clear communication at every stage
- Fully transparent from start to finish
- Fastest timelines, minimal coordination overhead
- POCs for all High/Crit and non-trivial findings
Our Past Experience
$0+
TVL Held in Fuzzed Contracts
and Implemented
Successfully Completed
Why the Best Trust Us
Meet Our Elite Team

Rappie
CTO & Lead Fuzzing Specialist
One of the OGs in EVM fuzzing, helped secure massive companies such as Coinbase, and continues to push the boundaries of smart contract security through research and fuzzing innovation

Antonio Viggiano
Advisor & Lead Fuzzing Specialist
Spoke and published many research papers on EVM fuzzing. The editor of All Things Fuzzy, a newsletter focused on invariants, fuzzing, symbolic testing, and formal verification

Josselin Feist
Lead Fuzzing Specialist
Author of Slither. Ex-engineering Director of the Blockchain team at Trail of Bits, 8+ years focused on blockchain security. Led countless security reviews in Solidity, Go and Rust
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