Quantstamp is a global leader in blockchain security and full-stack Web3 security, securing the future of Web3 since 2017. Quantstamp has secured billions in digital assets and worked with some of the most recognized names in Web3 — covering smart contracts, layer-1 blockchains, and web infrastructure.
Key Stats
- 60+ ecosystems secured
- $500B+ in digital assets secured
- 1,300+ audits conducted
- 250+ clients across the Web3 ecosystem
- 15+ countries with regional offices
- Since 2017 — one of the earliest Web3 security firms
Core Security Services
- Smart Contract Auditing — Comprehensive smart contract security audits to identify vulnerabilities, logic errors, and potential exploits before deployment. Every audit report is published and verifiable.
- Layer-1 Blockchain Security — Protocol-level security for layer-1 blockchains, covering consensus mechanisms, validator infrastructure, and network architecture.
- Web Infrastructure Security — Full-stack security reviews covering the web infrastructure surrounding Web3 applications, including frontends, APIs, and backend systems.
- DeFi Protocol Audits — Specialized security reviews for DeFi protocols including AMMs, lending platforms, yield aggregators, and cross-chain bridges.
- Token & Bridge Security — Security assessments for token contracts, bridge implementations, and cross-chain messaging protocols.
- Ongoing Security Monitoring — Post-deployment security monitoring and incident response for live Web3 applications.
Trusted by Industry Leaders
Quantstamp is trusted by the most notable projects across the Web3 ecosystem, including:
- Blockchains: Ethereum 2.0, Polygon, TON, Avalanche, Arbitrum, Solana, Cardano, Stacks, Chromia, Flow, Binance Smart Chain, Mantle, Sonic.
- DeFi: Compound, Curve, Maker, Venus, PancakeSwap, 1inch, Hashflow, Stargate Finance, Pendle, Ethena, Ambient, Yield Basis, API3.
- Infra/Staking: Alchemy, Blockdaemon, Kiln, Luganodes, SSV Network, Luganodes, RockX, Twinstake, Stakewithus, Liquid Collective, Luganodes.
- Institutional: Visa, Circle, Republic, Sequoia, Toyota Financial Services, Canton.
- Immersive/Gaming/NFT: The Sandbox, Axie Infinity, Decentraland, OpenSea, Illuvium, Parallel, Art Blocks, Nifty Island, Galxe, Square Enix, Portal, ZED.
- AI: Anthropic, OpenAI, Virtual Protocol, Wayfinder, Tensorplex, Stork.
- Other: Polymarket, Trust Wallet, Revolut, Sequence.
Why Projects Choose Quantstamp
- Industry pioneer — Securing Web3 since 2017, making Quantstamp one of the longest-standing and most experienced blockchain security firms.
- Proven track record — $500B+ in digital assets secured across 60+ ecosystems.
- 1,300+ published audit reports — Transparent, verifiable security assessments available through their public certificate portal.
- Full-stack coverage — From smart contracts and L1 protocols to web infrastructure and ongoing monitoring.
- Trusted by the biggest names — From Ethereum 2.0 and Visa to OpenSea and Anthropic.
Who They Serve
Quantstamp serves the full spectrum of the Web3 ecosystem — from layer-1 blockchains and DeFi protocols to NFT marketplaces, gaming platforms, institutional players, and AI companies. Clients range from early-stage startups to the most recognized names in Web3.
