# audit

Smart Contracts and Blockchain Services - development, audit, consulting

Smart contract audit, KYC, on-chain monitoring, bug bounty, pen testing.

ChainSecurity, operational since 2017, is renowned for conducting smart contract audits, especially for high-profile DeFi protocols and Web3 projects. Their approach involves extensive quality assurance and in-depth investigations to uncover novel vulnerabilities, making them specialists in auditing complex and high-stakes smart contracts. Their client base includes notable names in the crypto space, underscoring their expertise and trustworthiness in ensuring blockchain security.

Top auditors compete to keep high severity bugs out of production. Community-driven contests for smart contract audits.

We help developers build secure blockchain and smart contract applications.

Control your digital assets with a full suite of innovative tools. Invest confidently, supported by our auditing experts. DeFiYield's Audit Database is the world's most comprehensive database of all smart contract audits performed to date.

Hexens is a cybersecurity consulting firm specializing in blockchain and DeFi projects. They offer a wide range of services, including smart contract audits, security advisory, and penetration testing, aiming to secure digital assets and data with a novel approach. Hexens is trusted by well-known organizations within the crypto space.

Review code. Prevent hacks. Build rep. Get paid.

Quality Audits with Low Lead Times - Macro delivers The Audit You Need. Don't leave your protocol to chance. Leverage our expertise. Secure your smart contracts.

MixBytes is a team of experienced developers providing top-notch blockchain solutions, smart contract security audits and tech advisory.

Open Zeppelin provides security products to build, automate, and operate decentralized applications. We also protect leading organizations by performing security audits on their systems and products.

Originally independent security researchers, our team has a proven track record in both traditional security and Web3. With reports against popular protocols like Saber, Jet, Switchboard, and more, we bring a wealth of experience to our audits.

A blockchain security and data analytics company

### What Quantstamp is an audit and security company specializing in web3 and smart contracts security

ShellBoxes is a company specializing in blockchain security and development services for the Web3 ecosystem. They offer a range of services, including smart contract audits, dApp audits, penetration testing, and blockchain consulting, to ensure the security and functionality of blockchain projects. Their expertise covers various blockchain ecosystems and programming languages, aiming to provide comprehensive cybersecurity solutions to protect and optimize Web3 projects.

Blockchain & Cyber Security Expertise

Since 2012, Trail of Bits has helped secure some of the world’s most targeted organizations and products. Combining high-end security research with a real-world attacker mentality to reduce risk and fortify code.

WITNESS trustless timestamping protocol for proving the existence or modification of data at any scale.

yAudit is an auditing collective made up of the best auditors hand-selected from the yAcademy training program. Delivering high quality smart contract security audits under the yAcademy brand since 2021, yAudit brings an attention to detail above and beyond your standard auditing firm.