Guardian

Guardian is an elite smart contract security auditing firm founded in 2022, specializing in institutional-grade blockchain security for DeFi protocols, NFT platforms, and other Web3 applications. The company has secured over $10 billion in assets for leading Web3 projects including Synthetix, GMX, Ethena, Arbitrum, Yuga Labs, and Azuki.

Core Services

Guardian delivers comprehensive smart contract security through its signature "Don't Audit, Battle Test" methodology. Rather than traditional auditing approaches, Guardian employs a dual-team review system where two independent teams of elite security researchers independently scrutinize smart contracts. This parallel approach uncovers vulnerabilities that single-team audits often miss. Each engagement includes cataclysmic fuzzing—simulating millions of randomized and targeted transactions to probe systems for critical flaws—and an impeccable remediation review process where all fixes are independently verified by both teams.

Key Strengths

What sets Guardian apart is its innovative pay-per-vulnerability pricing model, allowing confident projects to pay only for issues found rather than flat-rate fees. The firm's fuzzing engineers construct comprehensive stateful fuzzing suites that continue providing security coverage long after the engagement concludes. Guardian's approach has prevented over 200 critical vulnerabilities across dozens of security reviews, with their complete portfolio of 1,000+ findings publicly available on GitHub.

Guardian's team includes GSR-1 through GSR-4 level security researchers, specialized fuzzing engineers (GFE), Web2 security engineers, and account executives. The firm maintains rigorous engagement criteria and delivers findings through private boards during audits, providing remediation consultation during the 10-day review period, and delivering comprehensive PDF reports upon completion.

Notable Clients and Projects

Guardian has completed high-profile engagements for major DeFi protocols including GMX's synthetics perpetuals exchange, Synthetix's BFP Market and Auto-Compound LP Vault, Orderly Network's cross-chain perpetuals settlement contracts, Yuga Labs' Shadow NFTs, Poolshark's concentrated liquidity AMMs, Dolomite's lending platform integration, Umami DAO's GMX V2 Index product, and MIMSwap's novel AMM. Client testimonials consistently highlight Guardian's exceptional technical depth, thorough process, and ability to find issues that other auditors miss.

Why Choose Guardian

For projects where security must be right the first time, Guardian offers institutional-grade smart contract security backed by a proven track record with top Web3 teams. The firm's dual-team approach, advanced fuzzing capabilities, and flexible pricing make it the choice for protocols managing significant value on-chain. Guardian officially recommends that clients with five or more high/critical issues undergo an additional independent security review, demonstrating their commitment to absolute security over revenue maximization.