EntityEngine
Smart Contract Audit

CertiK

The world's most widely deployed smart contract audit firm — formal verification at scale

New York, USAEst. 2018300+ security researchers
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Quick Facts

Best For
Teams needing a broadly credible audit with public verification scores, formal verification for high-assurance applications, or fast turnaround
Typical Engagement
1–6 weeks; wide price range from $5,000 to $500,000+ depending on complexity

Overview

CertiK is the most prolific smart contract audit firm globally, having audited 4,500+ projects and securing hundreds of billions in on-chain assets. Its scale allows it to serve teams at every stage from early-stage protocol launch to complex DeFi system upgrades. CertiK's on-chain security score and public audit registry have become a widely-used due diligence resource for investors and users. The firm's formal verification capabilities — mathematically proving code correctness rather than just reviewing it — give it a technical differentiation for high-assurance applications.

Focus Areas

Smart Contract AuditsFormal VerificationPenetration TestingOn-chain Security MonitoringDeFi Protocol SecurityNFT Contract Audits

Who They Work With

DeFi ProtocolsNFT ProjectsToken IssuersExchange Smart ContractsGaming & Metaverse ProjectsEnterprise Blockchain

Notable Audits

4,500+ projects audited including major DeFi protocols and exchange smart contracts

How to Engage

Engage via certik.com; faster turnaround than many competitors for standard contracts

Office Locations

SingaporeLondonRemote

Frequently Asked Questions about CertiK

How long does a CertiK audit typically take?
CertiK offers a wide range of turnaround times — from 1 week for simple contracts through to 6 weeks for complex DeFi systems. This flexibility makes CertiK accessible for teams with time pressure, including projects approaching exchange listing or token launch deadlines. The firm's scale (300+ security researchers) enables faster turnaround than smaller boutique auditors for comparable scope.
How much does a CertiK audit cost?
CertiK's pricing ranges from approximately $5,000 for simple token contracts through to $500,000+ for complex, multi-component DeFi systems — the widest pricing range of any major auditor. This breadth makes CertiK accessible to early-stage projects with limited budgets while also serving major protocol upgrades. Pricing is determined by codebase size, complexity, and the services required (audit + formal verification + on-chain monitoring).
What chains and languages does CertiK support?
CertiK supports a broad range of chains and languages — EVM chains (Solidity, Vyper), Solana (Rust), Cosmos (Go/CosmWasm), and others. This multi-chain coverage is a meaningful differentiator for projects building across multiple ecosystems or for non-EVM chains where some other auditors have limited capability.
What is CertiK's on-chain security score system?
CertiK maintains a public Security Leaderboard with on-chain security scores for audited projects — a widely-used due diligence resource for investors and users evaluating protocol safety. The score reflects audit findings, team credibility, and ongoing monitoring data. A published CertiK score has become a standard signal of audit credibility for token launches and exchange listing applications.
Does CertiK offer continuous on-chain monitoring?
Yes — CertiK's Skynet platform provides continuous on-chain security monitoring for deployed contracts, detecting anomalous transactions, price oracle manipulation, and other attack patterns in real time. This post-audit monitoring service is an option for protocols that want ongoing security visibility beyond the point-in-time audit report.
How many projects has CertiK audited?
CertiK has audited 4,500+ projects and helped secure hundreds of billions in on-chain assets — making it the most prolific smart contract audit firm globally by volume. This breadth of experience across thousands of codebases gives the firm extensive pattern recognition for common vulnerability classes, even if its depth on the most complex novel protocols is exceeded by boutique specialists like Trail of Bits.

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