Immunefi
Immunefi, founded in 2020 by Mitchell Amador, Travin Keith and Duncan Townsend with hubs in Singapore and Lisbon, runs the largest Web3 bug bounty and audit competition platform. Its protocol hosts bounties for 300+ projects including Chainlink, Optimism and Arbitrum, coordinating disclosure, triage and payouts that have prevented significant potential losses. The platform also offers audit competitions via Magnus and attackathon programs for foundations. Headquartered with a distributed team, Immunefi provides vaults for bounty funding, analyst review and researcher reputation rather than direct custody. Backed by leading investors, it sits at the nexus of security and ecosystem resilience. Its vault and triage systems coordinate disclosure timelines, researcher reputation and enterprise reporting that strengthen ecosystem resilience beyond individual bug fixes. Expect a security-first culture that values responsible disclosure, researcher relationships and raising the baseline for smart contract safety across the industry.