Trust
Security & compliance
SOC 2ISO 27001
SLA uptime target: Not specified
Security review turnaround: Not specified
DPA available: Not specified
Smart contract security platform with Contracts library, Defender, and audit services for Web3 teams.
Pricing
Custom quote
Founded
2015
Team size
51-200 employees
Headquarters
San Francisco, CA
Preview from openzeppelin.com
At a glance
Pricing model
Custom quote
Integrates with
ArbitrumBaseEthereumLineaMidnight+5
Security
SOC 2ISO 27001
About OpenZeppelin
OpenZeppelin is a Web3 security company best known for its open-source smart-contract libraries widely used across Ethereum and EVM chains, and for its professional security audits of blockchain protocols. It also operated Defender, a SaaS platform for secure smart-contract operations (monitoring, automated transactions, incident response), which is being discontinued in 2026 in favor of open-source tooling. It serves crypto protocols, DAOs and enterprises building on blockchain.
Procurement & Fit
Structured facts from the vendor to help your security, finance, and procurement reviews move faster.
Pricing
Commercial model
Pricing model: Custom quote
Free trial: No
Free plan: No
Contract minimum: Not specified
Procurement
Purchasing & legal
The vendor hasn’t added purchasing & legal details yet.
Fit
Best-fit company size
Company-size fit has not been specified yet.
Buyer Fit & Positioning
Implementation & Procurement
Commercial Fit & Ecosystem
Proof, Outcomes & Momentum
Alternatives, Migration & Buyer Objections
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OpenZeppelin
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