Guardian

Founded with the goal of becoming the most rigorous and respected name in Web3 smart contract security, Guardian has become the go-to firm for protocols seeking thorough, professional, and scalable audit services. The platform is particularly well known for its “two-team” methodology: every engagement involves two independent auditing teams reviewing the same codebase in parallel. This dual-layer review uncovers deep vulnerabilities that single-team audits often miss. It has allowed Guardian to prevent over $10 billion in potentially compromised smart contracts.

Guardian’s services include pre-launch audits, ongoing post-launch review cycles, remediation validation, and advanced fuzzing. During fuzzing, the system simulates millions of interactions to discover complex exploit paths. Each client receives not only a final PDF report but also access to a real-time dashboard with findings, a repository of proofs-of-concept, and a fuzzing suite that continues delivering security insights even after the engagement ends.

What makes Guardian particularly appealing to serious DeFi projects is its adaptability. Projects can choose between flat-fee pricing or a bold pay-per-vulnerability model, which reflects the company’s confidence in its detection process. Their portfolio includes flagship audits for protocols like GMX, Synthetix, Yuga Labs, and Polkastarter. Similar security-focused competitors include Trail of Bits, OpenZeppelin, and Certik, though Guardian is known for deeper manual testing and advanced fuzzing protocols.

Guardian's team is composed of elite researchers who specialize in areas ranging from Solidity inline assembly to cross-chain protocol design. The company is also deeply invested in educating the ecosystem, sharing best practices and contributing to public audits. Their vision is rooted in enabling the future of “Institutional DeFi,” where trillions of dollars of assets will be governed by code. Guardian’s mission is to make sure that code is secure.

Guardian provides numerous benefits and features that make it a standout in the smart contract security landscape:

• Dual-Team Audit Methodology: Every audit includes two independent teams working separately to uncover issues, doubling the depth of analysis and reducing oversight.
• Cataclysmic Fuzzing: Guardian’s proprietary fuzzing engine generates millions of test cases to identify edge-case vulnerabilities often missed by static analysis.
• Real-Time Findings Dashboard: Clients access a private board to monitor discovered issues, receive remediation recommendations, and communicate with Guardian researchers throughout the engagement.
• Flexible Pricing Models: Choose between flat-cost engagements or pay-per-vulnerability options—ideal for projects confident in their code or needing budget flexibility.
• Remediation Re-Audits: All fixes are re-tested and fuzzed again to ensure no new vulnerabilities were introduced.
• Extensive Portfolio: Guardian has conducted in-depth audits for over 200+ critical contracts including GMX V2, Synthetix BFP Market, Yuga Labs NFTs, and more.
• Post-Audit Security Continuity: Delivered fuzzing suites continue running even after the audit is complete, extending protection into production.

Guardian makes starting a security engagement simple, yet selective. The process is rigorous, ensuring each client meets high standards for collaboration and audit readiness. Here's how to begin working with Guardian:

• Submit an Application: Go to the official site and click "Get a Quote." Fill out details about your protocol, audit timeline, and codebase.
• Meet Engagement Criteria: Guardian reviews your request based on internal vetting and scope requirements before proceeding.
• Kickoff Call: If accepted, a kickoff call is scheduled to download context and finalize timelines and engagement structure.
• Audit & Fuzzing: Guardian starts the audit using both teams, along with the fuzzing suite and real-time board access.
• Remediation & Final Report: Clients are guided through fixing issues, after which Guardian performs a re-audit and delivers the final security report.