OpenZeppelin is a world-wide leading firm of blockchain security; offering crypto-cybersecurity technologies and services to create, automate and manage decentralized application (dApps). OpenZeppelin provides open source smart contract libraries, security audits, and the Defender platform to establish the most secure practices throughout the entire blockchain ecosystem.
OpenZeppelin was co-founded by CEO Demian Brener and Manuel Araoz to provide security products for blockchain-based applications.
OpenZeppelin operated under the name "Zeppelin Solutions" until it changed its name to OpenZeppelin on July 22nd, 2019.
OpenZeppelin completed their last tracked funding round in January of 2018 to help fund product development and expand into new markets.
OpenZeppelin expanded OpenZeppelin Contracts to include Cairo programming language for StarkNet compatibility to enable the creation of dApps utilizing zero-knowledge rollups.
OpenZeppelin has invested in the Forta Security Network and entered into partnership agreements with leading platforms such as Circle and Ethereum Foundation.
Blockchain-based security infrastructure with audit and monitoring capabilities across multiple blockchain networks
Security analysis and vulnerability detection for smart contract code using specialized blockchain security methodologies
Based on official product documentation, partnership announcements, and developer resources
| Service | Cost | Details | Source |
|---|---|---|---|
| Smart Contract Audit | Custom quote | Comprehensive security audits for smart contracts. Typical range $5,000-$20,000 depending on complexity | Industry standard from blockchain development cost reports |
| Blockchain Infrastructure Audit | Custom quote | Offchain infrastructure security audits | OpenZeppelin website |
| Security Partnership | $4M annually | Comprehensive monitoring, advisory services, and governance security for DAOs and protocols | COMP governance proposal |
| OpenZeppelin Contracts | $0 | Production-ready open source smart contract library used in $26T+ value transferred | — |
| Open Source Relayer & Monitor | $0 | Production-ready open source development tools (Defender sunset July 1, 2026) | — |
| Feature | OpenZeppelin | CertiK | Hacken | SlowMist |
|---|---|---|---|---|
| Smart Contract Auditing | Yes | Yes | Yes | Yes |
| Open Source Contracts Library | Yes | No | No | No |
| Infrastructure Audits | Yes | Yes | Partial | Yes |
| DAO Security Partnerships | Yes | Partial | No | No |
| Governance Monitoring | Yes | No | No | No |
| Starting Price | Custom quote | Custom quote | Custom quote | Custom quote |
| Free Tools Available | Yes (Contracts) | Limited | No | No |
| API Access | Yes | Yes | Yes | |
| Multi-Chain Support | 30+ chains | Yes | Yes | Yes |
| SOC 2 Certified | Yes | Yes | Yes |
OpenZeppelin leads in terms of open source adoption; the battle tested Contracts library used in OpenZeppelin powers over $26 trillion in Total Value Locked (TVL). While CertiK provides greater marketing presence and broadened automated analysis capabilities, it has less adoption among protocols than OpenZeppelin.
Utilize OpenZeppelin for production-grade standards and CertiK for comprehensive automated security scoring.
Hacken offers competitive pricing and rapid turnaround, however, it does not offer the same level of open source ecosystem or governance expertise as OpenZeppelin; OpenZeppelin serves larger protocols with over $4 million in partnerships.
SlowMist for cost-conscious startup, Hacken for enterprise DAOs.
SlowMist is exceptional at providing incident response and wallet security while OpenZeppelin is exceptional at providing smart contract standards; both are strong in multi-chain and have distinct areas of specialization.
By contract type: Wallet Security (SlowMist), Contract Security (OpenZeppelin).
Post in the #support category on the OpenZeppelin Community Forum at https://forum.openzeppelin.com with sufficient information so that others may be able to reproduce your issue. Members of the community will assist in troubleshooting your problem.
Send an email to security@openzeppelin.com with as much detail as possible regarding the vulnerability. Reporting instructions can also be found in the GitHub repository under the security tab. For less serious issues, it is perfectly fine to submit a GitHub issue as normal.
While OpenZeppelin was seeking to hire a Technical Community Manager and Technical Product Marketing Manager, these channels were changed to announcement-only. All support and discussion now takes place in the community forum for improved organization and response.
For a list of specific changes made during each version update, see the CHANGELOG.md file within the repository. In addition to the CHANGELOG.md file, the community has community calls and makes other types of posts to the blog and forum’s General category.
Subscribe to receive security notifications via the forum. If you are building applications using OpenZeppelin contracts, please make sure there is an easily identifiable contact point for the security team to reach out to you if any vulnerabilities are identified prior to the time of public disclosure.
Yes. OpenZeppelin hosts community calls which allow for you to give feedback about our products, suggest new features, submit bug reports or discuss ways to improve our products. Additionally, you are welcome to participate in code reviews and contribute to our GitHub repository.
OpenZeppelin maintains an active community forum with dedicated categories for General discussion, Support, Smart Contracts, and Security. The forum hosts over 5,000 discussion topics and has become the primary hub for community engagement after replacing the community Slack channel.
OpenZeppelin emphasizes secure smart contract development through community audits, security discussions, and vulnerability disclosure processes. The company maintains a responsible disclosure program and actively works with the community to identify and resolve security issues.
OpenZeppelin hosts community calls to discuss new features, security improvements, and ecosystem needs. Participants can earn proof-of-attendance awards for engaging in open review processes and providing feedback on new releases.
OpenZeppelin is actively hiring for multiple roles including technical, product, and community positions. Job listings are available on the OpenZeppelin website and regularly promoted to the community.
(63) – OpenZeppelin uses a community-based support model. This includes a large community forum where users can ask questions and get answers from other users or OpenZeppelin staff. As of today there are over 5,000 discussion threads in the forum. OpenZeppelin uses a responsible disclosure policy as well as community engagement to provide support and to ensure the security of their systems. However, support has been transitioning to this community model. OpenZeppelin had used both a Discord channel and a Telegram channel for support but has changed them to announcement channels only. All support efforts are now centralized into the OpenZeppelin Forum and the OpenZeppelin GitHub repository.
Good - Information gathered from official forum, YouTube community calls, and blog posts. Community support structure is publicly documented. Some enterprise support details not included in public sources.
(67) – At least two security researchers inspect each line of code that OpenZeppelin writes.
(68) – The proprietary Code Inspector tool developed by OpenZeppelin identifies over 60 percent of all low-severity coding issues.
(69) – To identify potential vulnerabilities in the OpenZeppelin systems, fuzzing and invariant testing techniques are employed to verify the integrity of the system.
(70) – When developing a system, OpenZeppelin conducts a comprehensive review of the system architecture and the design patterns that were used.
(71) – When a developer engages directly with the designers and architects of a project to develop the system, they are able to understand the technical design and business logic of the project.
| Service | Description |
|---|---|
| Smart Contract Security Audits | Solidity and multi-language smart contract audits with comprehensive code review |
| ZKP Security Audits | Zero-Knowledge Proof and cryptographic primitive auditing |
| Blockchain Infrastructure Audit | Offchain infrastructure and layer 2 network security assessment |
| Security Advisory | Ongoing security consultation and guidance |
| DAO Security Proposal Reviews | Governance proposal and incident security review |
| Monitor & Relayer Support | Real-time monitoring and relayer infrastructure security |
