OpenZeppelin
OpenZeppelin focuses on smart-contract security libraries, audits, and developer services.
- Headquarters not consistently disclosed in current official materials
- Security & Auditing
Security & Auditing includes companies focused on identifying, preventing, monitoring, and responding to technical and operational risks in blockchain systems. This vertical covers smart-contract auditors, penetration testers, threat-intelligence providers, incident-response teams, monitoring tools, and formal-verification specialists. Organizations may serve consumers, developers, enterprises, or other market participants, depending on their products and jurisdictions. Common offerings include code review, attack simulation, continuous monitoring, fraud detection, key-management assessment, bug bounties, and investigations. Companies are classified here according to their primary business activity, although many also operate across adjacent cryptocurrency, blockchain, and financial-technology sectors. Inclusion helps readers compare organizations with similar functions and does not constitute an endorsement, investment recommendation, or assessment of regulatory standing. Products, availability, licensing, security controls, fees, and customer protections can vary significantly. Readers should independently verify each company’s current services, legal status, technical claims, and risks before making financial, commercial, or operational decisions.
OpenZeppelin focuses on smart-contract security libraries, audits, and developer services.
Sardine focuses on fraud prevention, compliance, and risk infrastructure for digital finance.
Sherlock focuses on smart-contract audits and protocol security coverage.
Solidus Labs focuses on crypto market-integrity surveillance and trade-monitoring software.
Spearbit focuses on distributed smart-contract security reviews and audit services.
Zellic focuses on smart-contract and blockchain security auditing.