Is Your Project Hacker-Resistant?

Trust the world’s most advanced formal verification technology for smart contracts and blockchain auditing.

  • 160+
  • $1.28B+
  • 88K+
    Lines of Code Audited

Don’t Compromise on Security

CertiK combines leading formal verification technology with best-in-class cybersecurity experts to deliver end-to-end security services.

  • Smart Contract Audits

    Combine manual testing, static analysis, and formal verification for the most robust smart contract security in the industry.

  • Platform Customization

    Integrate with CertiK’s formal verification proof engine to create a more scalable and secure ecosystem.

  • Penetration Testing

    Leverage a world-class team of cybersecurity experts to prevent critical attack vectors and vulnerabilities.

Don’t Settle for Anything Less

Transparent audit reports that mathematically ensure against some of the most frequent and critical vulnerabilities.

48 Hour Turnaround

Accepted Across Exchanges

Free Unlimited Re-Audits

Unique Patented Technologies

Trusted by Market Leaders


  • “CertiK mathematically validates the security of smart contracts — which is a critical pain point we are facing in the blockchain ecosystem — bypassing the limitations of manual detection.”
  • “CertiK’s vision is to realize a transparent, fair, and secure blockchain ecosystem around the world, the same vision as Ontology’s. We look forward to work with CertiK and bring more real cases of smart contract formal verification, solve blockchain security pain points, and create an ecosystem with high security.”
  • “NEO is a high-speed autonomous public chain. With more developers building layers on top of it, this added security layer will expedite the prosperity of the ecosystem. I believe NEO and CertiK’s partnership is on track to changing the course of history.”
  • “Contents Protocol is blockchain-based big data analytics company for the entertainment industry. With CertiK, we were able to verify security and reliability of our smart contract. We look forward to creating a secure data ecosystem in the entertainment industry.”


  • BitMain
  • Binance
  • Lightspeed
  • Wing
  • Matrix
  • DHVC
  • Icon
  • Fenbushi
  • FBG
  • NGC
  • Okex
  • Kenetic
  • Vechain
  • NEO
  • Ontology
  • Kosmos
  • Qtum
  • IOST
  • Waves
  • Aelf
  • Signum
  • Draper Dragon
  • One Block
  • Node Capital
  • Oneboat
  • Arrington
  • Chainfund
  • Bixin
  • BRC
  • 8decimal
  • JRR
  • Linkvc
  • BAC
  • PreAngel
  • Nirvana Capital

Don’t just look for bugs, prove that they cannot exist.

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