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Security & Audits Directory

Smart-contract auditors, bug bounties, monitoring and incident response.

31 organizations 4 countries typical founding year 2019 $169 million value locked revised 4 Nov 2026

31 entries
REG 00155
Chainalysis

Blockchain analytics and investigations

Blockchain Forensics United States 2014 Editor's pick
REG 00149
Immunefi

Bug bounty platform for Web3

Bug Bounty Platforms Not disclosed 2020 Editor's pick
REG 00134
OpenZeppelin

Smart contract audits and secure contract libraries

Smart Contract Auditors United States 2015 Editor's pick
REG 00160
Nexus Mutual

Member-owned on-chain cover for smart contract risk

Insurance & Cover United Kingdom 2019 Listed
REG 00580
Firelight

DeFi insurance protocol on Flare

Insurance & Cover Not disclosed — Listed
REG 00965
Easedefi.org

DeFi insurance protocol on Ethereum

Insurance & Cover Not disclosed — Listed
REG 01048
Ensuro

DeFi insurance protocol on Ethereum and Polygon

Insurance & Cover Not disclosed — Listed
REG 01256
Cozy Finance

DeFi insurance protocol on Ethereum and Optimism

Insurance & Cover Not disclosed — Listed
REG 01380
Ante Finance

DeFi insurance protocol across 8 chains

Insurance & Cover Not disclosed — Listed
REG 00148
Sherlock

Audit contests and exploit coverage

Smart Contract Auditors Not disclosed 2021 Listed
REG 01409
USD8

DeFi insurance protocol on Ethereum

Insurance & Cover Not disclosed — Listed
REG 01417
Lunos

DeFi insurance protocol across 4 chains

Insurance & Cover Not disclosed — Listed
REG 01419
Tidal Finance

DeFi insurance protocol on Polygon

Insurance & Cover Not disclosed — Listed
REG 01427
Cork

DeFi insurance protocol on Ethereum

Insurance & Cover Not disclosed — Listed
REG 00146
Cantina

Security competitions and audits marketplace

Bug Bounty Platforms Not disclosed 2023 Listed
REG 00143
CertiK

Blockchain security audits and monitoring

Smart Contract Auditors United States 2018 Listed
REG 00147
Code4rena

Competitive smart contract audit platform

Bug Bounty Platforms Not disclosed 2021 Listed
REG 00142
ConsenSys Diligence

Smart contract audits by Consensys

Smart Contract Auditors United States 2016 Listed
REG 00154
Cyfrin

Audits and security education

Smart Contract Auditors Not disclosed 2022 Listed
REG 00156
Elliptic

Crypto compliance and blockchain analytics

Blockchain Forensics United Kingdom 2013 Listed
REG 00159
Forta

Decentralized threat detection network

Threat Monitoring Not disclosed 2021 Listed
REG 00153
Hacken

Blockchain security auditor

Smart Contract Auditors Estonia 2017 Listed
REG 00144
Halborn

Blockchain security and audit firm

Smart Contract Auditors United States 2019 Listed
REG 00158
Hypernative

Real-time Web3 threat prevention

Threat Monitoring Israel 2022 Listed
REG 01482
Neptune Mutual

DeFi insurance protocol on Ethereum, Arbitrum and BNB Chain

Insurance & Cover Not disclosed — Listed
REG 00151
OtterSec

Smart contract security audits

Smart Contract Auditors Not disclosed 2021 Listed
REG 00152
Quantstamp

Smart contract audit firm

Smart Contract Auditors United States 2017 Listed
REG 00145
Spearbit

Network of independent smart contract auditors

Smart Contract Auditors Not disclosed 2021 Listed
REG 00141
Trail of Bits

Security research and smart contract audit firm

Smart Contract Auditors United States 2012 Listed
REG 00157
TRM Labs

Blockchain intelligence for compliance

Blockchain Forensics United States 2018 Listed
REG 00150
Zellic

Blockchain security research firm

Smart Contract Auditors United States 2020 Listed

Security & Audits by country

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