1 4.9 Fireblocks 1 review Fireblocks uses multi-party computation (MPC) technology to eliminate single points of failure in private key management, securing trillions in institutional digital asset transfers. 2 4.9 OpenZeppelin 1 review OpenZeppelin provides professional smart contract security audits and the Defender platform for real-time monitoring and automated incident response for deployed contracts. 3 4.9 Trail of Bits 1 review Trail of Bits conducts security audits for top-tier DeFi protocols and blockchain infrastructure, known for deep technical rigor in smart contract analysis and cryptographic system review. 4 4.8 Casa Bitcoin 1 review Casa biedt premium Bitcoin multisig-veiligheid met 2-of-3 en 3-of-5 key vaults, erfenisplanning en health checks die geavanceerde self-custody toegankelijk maken voor mainstreamgebruikers. 5 4.8 Consensys Diligence Ethereum 1 review Consensys Diligence biedt deskundige Ethereum smart contract-audits die handmatige controle combineren met geautomatiseerde analysehulpmiddelen, ondersteund door diepgaande Ethereum-ecosysteem expertise. 6 4.8 Immunefi 1 review Immunefi is the dominant Web3 bug bounty platform, hosting vulnerability reward programs for hundreds of blockchain projects and facilitating responsible disclosure of smart contract vulnerabilities. 7 4.8 Monero XMR Monero 1 review Monero biedt best-in-class transactie privacy door verplichte privacy functies inclusief ring signatures, stealth addresses, en RingCT, waardoor alle transacties standaard private zijn in plaats van optioneel. 8 4.8 Safe SAFE Ethereum 1 review Safe biedt institutionele beveiliging door multi-signature smart accounts met programmeerbare transactieregels, uitgavenlimits en accountherstel. 9 4.7 Chainalysis 6 reviews Chainalysis versterkt cryptoveiligheid door forensische tools te bieden die illicit transacties traceren, verdachte portefeuilles monitoren en fraude, hacks en sanctionontduiking blootleggen. De oplossingen worden door beurzen, financiële instellingen en overheidsinstanties wereldwijd gebruikt om d 10 4.7 Bisq BSQ Bitcoin 1 review Bisq geeft prioriteit aan privacy en beveiliging met verplichte Tor-connectiviteit, geen identiteitsvereisten, multisig-escrow en volledig gedecentraliseerde architectuur zonder single point of failure. 11 4.7 BitGo 1 review BitGo pioneered multi-signature security for Bitcoin and provides enterprise-grade key management infrastructure protecting institutional digital assets. 12 4.7 CertiK 1 review CertiK is one of the largest blockchain security firms, offering smart contract audits, penetration testing, on-chain monitoring, and its Skynet security scoring platform for ranking crypto project safety. 13 4.7 Code4rena 1 review Code4rena operates competitive smart contract audit contests where security researchers compete to find vulnerabilities, combining crowdsourced review breadth with structured judging quality control. 14 4.7 Cyfrin 1 review Cyfrin provides professional smart contract auditing services and maintains open-source security tools, combining hands-on audit work with educational resources for the developer community. 15 4.7 OtterSec 1 review OtterSec is a leading blockchain security auditor with deep expertise in Solana/Rust smart contract auditing, also covering Ethereum, Cosmos, and Aptos ecosystems. 16 4.7 PeckShield 1 review PeckShield provides smart contract audits, real-time DeFi exploit monitoring, and incident investigation services. Known for rapidly detecting and publicly disclosing blockchain security incidents. 17 4.7 Runtime Verification 1 review Runtime Verification specializes in formal verification of smart contracts, using mathematical proofs to ensure contract correctness beyond what traditional auditing can achieve. 18 4.7 SlowMist 1 review SlowMist provides smart contract audits, exchange security assessments, threat intelligence, and stolen asset tracking. Maintains a comprehensive database of blockchain security incidents. 19 4.7 Sparrow Wallet Bitcoin 1 review Sparrow Wallet benadrukt Bitcoin-veiligheid met multisig support, hardware wallet compatibiliteit, air-gapped signing via PSBT en privacy features inclusief Whirlpool CoinJoin. 20 4.7 Spearbit 1 review Spearbit operates as a decentralized network of elite smart contract auditors, curating top-tier security researchers for collaborative high-quality protocol reviews. 21 4.6 BlockSec 1 review BlockSec provides smart contract audits, real-time attack detection, and the Phalcon platform for automated exploit front-running and blocking to protect DeFi protocols. 22 4.6 Dedaub Ethereum 1 review Dedaub biedt smart contract-beveiligingsaudits die handmatige deskundigenbeoordeling combineren met eigendomsgebonden statische analyse- en decoderingstools, plus de Watchdog-monitoringservice voor geïmplementeerde contracten. 23 4.6 Halborn 1 review Halborn provides end-to-end blockchain security services including smart contract audits, penetration testing, cloud security assessment, and incident response for Web3 projects and crypto exchanges. 24 4.6 Start9 Bitcoin 1 review Start9 bevordert Bitcoin zelfbeschikking via StartOS persoonlijke servers, waardoor gebruikers hun eigen transacties kunnen verifiëren en privé Bitcoin-infrastructuur zonder afhankelijkheid van derden kunnen uitvoeren. 25 4.6 TRM Labs 1 review TRM Labs enhances crypto security through blockchain forensics, helping detect and investigate financial crimes, sanctions violations, and illicit fund flows. 26 4.6 Wasabi Wallet Bitcoin 1 review Wasabi Wallet biedt geavanceerde Bitcoin privacy via zijn WabiSabi CoinJoin protocol, verplichte Tor routing en client-side block filtering om tegen blockchain surveillance te beschermen. 27 4.6 Zcash ZEC Zcash 1 review Zcash biedt geavanceerde privacy door zk-SNARKs zero-knowledge proofs, waardoor volledig shielded transacties mogelijk zijn die afzender, ontvanger en bedrag verbergen terwijl cryptografische verifiabiliteit behouden blijft. 28 4.6 Zellic 1 review Zellic provides smart contract audits across Ethereum, Solana, Cosmos, and Move-based chains, with particular expertise in non-EVM blockchain architectures and novel smart contract languages. 29 4.5 BitBox 1 review BitBox emphasizes security through Swiss manufacturing, open-source firmware, dual-chip architecture with secure element, and a minimalist Bitcoin-only edition option. 30 4.5 Elliptic 1 review Elliptic contributes to crypto security through blockchain forensics, detecting illicit transaction patterns, sanctions evasion, and financial crimes across digital asset networks. 31 4.5 Forta Network FORT Ethereum 1 review Forta Network biedt gedecentraliseerde realtime-bedreigingsdetectie en -monitoring op EVM-blockchains, met behulp van een netwerk van onafhankelijke bots die transacties scannen op exploits en afwijkingen. 32 4.5 Hexagate 1 review Hexagate provides proactive real-time threat detection and prevention for blockchain protocols using machine learning and invariant analysis to identify exploits before they happen. 33 4.5 Lit Protocol LIT Ethereum 1 review Lit Protocol biedt op drempelcryptografie gebaseerde veiligheidsinfrastructuur, waardoor gedecentraliseerd sleutelbeheer en toegangscontrole zonder enkele risicopunten voor Web3-applicaties mogelijk zijn. 34 4.5 Nexus Mutual NXM Ethereum 1 review Nexus Mutual biedt gedecentraliseerde verzekeringsdekking tegen smart contract exploits en protocol fouten, met door de gemeenschap aangestuurde claims beoordeling. 35 4.5 Oasis Network ROSE Oasis Network 1 review Oasis Network biedt vertrouwelijke computing via zijn Sapphire ParaTime, en biedt de eerste EVM-compatibele vertrouwelijke smart contract-omgeving voor privacy-preserverende dApp-ontwikkeling. 36 4.5 Quantstamp 1 review Quantstamp is a veteran blockchain security firm providing smart contract audits, security consulting, and automated vulnerability analysis across multiple blockchain ecosystems. 37 4.5 Sardine 1 review Sardine offers advanced fraud prevention using device intelligence and behavioral biometrics to protect crypto platforms from payment fraud and identity theft. 38 4.5 Secret Network SCRT Secret Network 1 review Secret Network biedt versleutelde smart contract uitvoering, waardoor inputs, outputs en contract state private blijven door hardware-gebaseerde trusted execution environments (TEEs). 39 4.4 Cantina 1 review Cantina is a Web3 security marketplace offering managed audits, competitive security contests, and bug bounties, connecting protocols with curated top-tier security researchers. 40 4.3 Crystal Blockchain 1 review Crystal Blockchain enhances crypto security through blockchain forensics, fund flow visualization, and real-time monitoring to identify and investigate illicit activity. 41 4.3 Decred DCR Decred 1 review Decred biedt optionele transactieprivacy via zijn CSPP (CoinShuffle++)-mengprotocol, waarmee gebruikers hun DCR-bezittingen kunnen anonimiseren via gedecentraliseerd mengen. 42 4.3 Electrum 1 review Electrum provides robust security through multi-signature support, hardware wallet integration, cold storage options, and a proven 13+ year track record in the Bitcoin ecosystem. 43 4.3 Hats Finance HAT Ethereum 1 review Hats Finance exploiteert een gedecentraliseerd bug bounty-platform met on-chain bounty vaults, wat transparante en geautomatiseerde vulnerability reward distribution voor cryptoprojecten mogelijk maakt. 44 4.3 Keystone Wallet 1 review Keystone provides robust security through complete air-gapping, open-source firmware, Shamir Secret Sharing backup, and multi-sig support for advanced key management. 45 4.3 Mina Protocol MINA Mina 1 review Mina's zero-knowledge proof-technologie maakt privacybeschermende toepassingen mogelijk waarbij gebruikers feiten over gegevens kunnen bewijzen zonder de onderliggende informatie bloot te geven, wat de blockchainprivacy verbetert. 46 4.3 Phala Network PHA Polkadot 1 review Phala Network biedt hardwaregerichte privacy via trusted execution environments (TEEs), waardoor vertrouwelijke smart contracts en gegevensverwerking mogelijk zijn zonder gevoelige informatie bloot te stellen. 47 4.3 Rabby Wallet 1 review Rabby stands out for its security features including pre-transaction simulation, phishing site detection, token approval management, and contract risk scoring. 48 4.3 Sherlock 1 review Sherlock combines competitive smart contract audit contests with exploit coverage, creating a unique model where auditors have skin-in-the-game through Sherlock's coverage pool. 49 4.2 Chainproof 1 review Chainproof provides regulated smart contract insurance coverage backed by traditional reinsurance markets, bridging institutional insurance with DeFi security. 50 4.2 Iron Fish IRON Iron Fish 1 review Iron Fish biedt standaard privacy voor alle transacties door zero-knowledge proofs, waarbij gegevens van afzender, ontvanger en bedrag worden versleuteld, terwijl viewkeys voor optionele regelgevingsnaleving worden aangeboden. 51 4.2 Manta Network MANTA Ethereum 1 review Manta Network benadrukt programmeerbare privacy door zero-knowledge proofs en Universal Circuits-technologie voor het bouwen van privacy-beschermende toepassingen. 52 4.2 Tangem 1 review Tangem provides hardware-level security through its embedded secure chip while maintaining ease of use via NFC tap-to-sign transaction verification with multi-card backup sets. 53 3.8 InsurAce INSUR Ethereum 1 review InsurAce biedt DeFi verzekeringsdekking tegen smart contract exploits, stablecoin de-pegging en exchange fouten over meerdere blockchainnetwerken.