Let’s take a look at the top smart contract auditing companies that help ensure the security of your crypto projects and protect your customers’ assets.
Smart contracts are digital contracts that are automatically executed with code stored on the blockchain. Furthermore, these contracts cannot be modified once they are deployed.
Smart contract vulnerabilities are the main reason behind various crypto-based hacks, frauds, and thefts. For example, hackers stole $480 million worth of crypto assets in the first half of 2023.
Therefore, it is important to audit smart contracts before starting a crypto project. Let’s start with the basics, stay tuned!
What is a smart contract audit?
A smart contract audit involves a detailed analysis of the code present in a smart contract. As a result, this process helps detect potential risks and flaws before deploying the code to a blockchain network.
Furthermore, the open source nature of blockchain projects leaves room for various vulnerabilities. The introduction of such unaudited contracts makes it easier for hackers to breach security systems and exfiltrate customers’ crypto assets.
Additionally, projects that complete the audit process tend to be accepted in the cryptocurrency space. Additionally, audited projects are more likely to attract investor attention.
Blockchain security is a key factor that plays a key role in the success of any crypto project. This is why it is important to conduct a smart contract audit through a well-known company.
Now, let’s take a look at the list of top smart contract auditing companies.
hash lock
Hashlock is an Australian company focused on smart contract auditing and blockchain cybersecurity. Additionally, they are members of FinTech Australia and Blockchain Australia.
The company conducts rigorous audits to detect and report security issues in smart contracts. As a result, the audit process includes:
- Vulnerability analysis
- Thorough manual code review
- Aggressive testing using industry standard software toolkits
- Development revision suggestions for initial review
- Final analysis and detailed report
Hashlock has partnered with various crypto projects to conduct smart contract audits for Ethereum, BNB Smart Chain (BSC), Polygon, and Solana. For example, these projects include Mad Cartels , Aria Land, BTAF Protocol, Jubi DAO, Verida Token(VDA), etc.
Hashlock’s most impressive feature is its simple and well-defined audit reports. For example, their reports cover all major aspects such as security assessment, code quality, dependencies, vulnerabilities, and feasible suggestions.
Hakken
Founded in 2017, Hacken provides smart contract audit services to over 1,000 clients worldwide. Additionally, they have audited over 1,200 crypto projects to date.
Additionally, major clients include Huobi, Binance, DAO Maker, 1inch, etc. to name a few. Additionally, we conduct audits on a wide range of blockchains including Ethereum, BNB Smart Chain (BSC), Polygon, Solana, and Aptos.
The company’s core team involved in smart contract auditing consists of over 60 top-class engineers. As a result, no exploits were reported in fiscal year 2022.
To receive services, you must first submit a quote form that describes your project, documentation details, smart contract source code, etc. It takes 5-15 business days for Hacken to complete a smart contract audit.
Quill audit
QuillAudits has a proven track record of securing over 850 crypto projects. Additionally, the firm’s audit services have helped secure over $30 billion worth of assets.
Additionally, the firm also has over 5 years of audit experience in the Web3 field. As a result, we audited over 800,000 lines of smart contract code.
Additionally, QuillAudits offers audits for numerous blockchains. For example, top examples include BNB Smart Chain (BSC), Solana, Ethereum, Polkadot, Polygon, Algorand, etc.
The quality of the company’s auditing services is attracting more clients from various ecosystems such as DeFi and crypto gaming, to name a few. Additionally, the company’s customer base includes Gameloft, Nord Finance, Dfyn, Polygon DAO, and more.
ConsenSys Diligence
ConsenSys Diligence provides specialized smart contract auditing for Ethereum-based projects. Furthermore, they audited over 100 blockchain companies and found over 200 critical issues in their smart contract code.
Founded by Ethereum co-founder Joseph Rubin, ConsenSys is one of the most trusted names in the cryptocurrency space. Notably, this company is behind the development of MetaMask, one of the best cryptocurrency wallets.
Additionally, ConsenSys Diligence is comprised of an experienced team of auditors, researchers, and developers. As a result, they have audited prominent crypto projects such as Aave, 1inch, 0x, Lybra Finance, and Uniswap.
After completing the audit, the company will provide a report with an overview, scope, findings, and system overview. Additionally, this report also includes the severity of every issue and its potential improvements.
Certification
Founded by professors from Yale University and Columbia University, CertiK is undoubtedly one of the most popular auditing firms. Additionally, it incorporates AI technology, industry-leading audit tools, and methods for achieving the best audit results.
As of this writing, CertiK has audited over 4,400 blockchain-based projects. In addition, we have reported over 68,000 audit results to our clients.
Remarkably, this company was founded in 2018 and has the backing of top investment firms. For example, major investors include Sequoia Capital, Tiger Global, Goldman Sachs, Binance, and more.
Additionally, CertiK is one of the smart contract auditors recommended by prominent exchanges such as Huobi, Binance, and OKEx. Additionally, we also provide auditing services for popular blockchains such as Ethereum, BSC, Polygon, and Solana.
Halborn
Growth hacker Rob Behnke and ethical hacker Steven Walbrohl founded Halborn in 2019. Smart contract auditing is the main service the company provides to its customers.
Their audit report provides a thorough analysis of smart contracts. Therefore, it helps in fixing code errors, identifying design issues, and security vulnerabilities. Additionally, they have expertise in auditing programming languages such as Solidity, Python, and Rust.
Halborn’s major clients include ApeCoin, Avalanche, Bancor, and BlockFi, to name a few. Furthermore, this audit firm specializes in blockchains such as Ethereum, Terra, Solana, and NEAR.
Additionally, Halborn has grown in size over the past few years and now has a team of over 100 highly qualified security engineers. Finally, the company takes two to four weeks to complete a smart contract audit.
anti-ear solution
Antier Solutions is a company that provides a variety of Metaverse and blockchain-based services. In particular, it has earned a reputation as a smart contract audit due to its quality and efficiency.
Most importantly, we provide audits for a wide range of industries. For example, our clients include real estate, insurance, healthcare, media and entertainment, banking and finance, transportation, and logistics.
Additionally, their audits cover all areas of the cryptocurrency ecosystem. Key services include decentralized finance (DeFi), decentralized applications (DApps), non-fungible tokens (NFTs), initial coin offerings (ICOs), and blockchain protocol audits.
Additionally, the company audits prominent blockchains such as Ethereum, BSC, Cosmos, Tron, Cardano, and Solana. For this, they partner with crypto platforms such as Alchemy Pay, fastnode.io, GetBlock, Nownodes, and Nexo.
Antier Solutions also has a large customer base in the cryptocurrency space. Their clients include CoinTrade, 5ireChain, Tarality, Weownomy Platform, and more.
chain salting
Founded in 2017, Chainsulting is a Web3 consulting, security, and software development company. This company has over 6 years of experience in the industry and has served over 420 clients.
This Germany-based company offers top blockchain smart contract audits. Supported blockchains are Ethereum, Solana, Hyperledger, EOS, Tezoz, Polygon, and BSC.
Additionally, Chainsulting’s audit report has been accepted and is available on CoinMarketCap , one of the top cryptocurrency platforms. As a result, their reports have gained a good reputation among members of the cryptocurrency community.
Additionally, the company provides high-quality audit reports in accordance with German security standards and techniques. For this reason, their notable clients include 1inch, ApeCoin, Agave, and Apollo Currency.
As of this writing, Chainsulting is in the process of rebranding to Softstack.io.
slow mist
Founded in 2018, SlowMist is a well-known security company offering blockchain security. Additionally, the company is the first Chinese smart contract security auditing company to be featured on Etherscan’s recommended list.
In particular, their smart contract audit reports were highly praised and recognized by multiple cryptocurrency exchanges like OKX. Additionally, their team has over 10 years of experience in network security.
The company’s experience and expertise in smart contract auditing has helped it attract many partners. For example, we have partnered with prominent companies such as Binance, Huobi, Crypto.com, imToken, OKX, and PancakeSwap.
SlowMist has completed smart contract audits for over 1,500 clients. Additionally, their services cover top blockchains such as Ethereum, Aptos, EOS, Clayton, and Solana.
quant stamp
Quantstamp is a well-known company with expertise in blockchain security and has conducted over 500 smart contract audits. In addition, we have helped clients secure over $200 billion in assets.
The company has audited blockchains such as Solana, Avalanche, Ethereum, Flow, BSC, and Cardano. Moreover, smart contract auditing played a key role in ensuring the security of DApps such as Curve, OpenSea, and Maker.
Additionally, Quantstamp has also conducted audits of some of the biggest names in the NFT space, including Decentraland, The Sandbox, Axie Infinity, SuperRare, Nifty Island, Zora, and NBA Top Shot.
Additionally, clients in the DeFi space include Compound, Arbitrum, Chainlink, SushiSwap, Lido, xDAI, BadgerDAO, and more.
open zeppelin
OpenZeppelin is comprised of a team of security experts who conduct audits of smart contracts. The company was founded in 2015 and has successfully audited over 370 crypto projects.
Smart contracts audited by OpenZeppelin contain over $15 billion in assets. Additionally, the company works with more than 30 top blockchain networks in the cryptocurrency space.
Additionally, we will point out whether the smart contract issue is critical, high, medium, or low. Additionally, notes with expert suggestions and recommendations are also added.
OpenZeppelin is trusted by well-known names in the cryptocurrency ecosystem. For example, the company’s customer base includes Coinbase, Ethereum Foundation, Matter Labs, Aave, Optimism, and more.
chain security
ChainSecurity is a smart contract auditing company active in the blockchain space since 2017. In addition, we provide audit services for Web3 projects and DeFi protocols, to name a few.
The firm believes in professional methodologies to provide in-depth research and quality assurance to its clients. Because of this, they have added a huge customer base that includes MakerDAO, Compound, Curve Finance, Rarible, Uniswap, and more.
ChainSecurity is comprised of a team of blockchain security experts. For example, most of our team members are graduates and PhDs from ETH Zurich, a top European university.
pec shield
Founded in 2018, PeckShield is a blockchain security company with senior researchers and security experts. For example, the team is made up of experts with experience at Microsoft, Qihoo 360, Intel, Alibaba, etc.
This company has conducted audits across a wide range of areas in the blockchain space. Additionally, they are associated with numerous cryptocurrency exchanges, wallets, DApps, mining pools, and DeFi.
PeckShield’s notable achievements include detecting the BatchOverflow loophole in Ethereum smart contracts. Notably, the company has a huge clientele that includes BNB Chain, Avalanche, dYdX, Polygon, ParaSwap, and more.
FAQ
The main steps involved are:
1) Gather documentation: The first step is to gather important project documents such as code bases, white papers, and technical documents.
2) Document Review: Here, team members review the submitted documents to find out the scope and technical specifications of the project.
3) Smart Contract Review: Blockchain security experts review every line of smart contract code to detect security issues.
4) Audit testing: Smart contracts are tested manually and automatically using industry standard auditing tools.
5) Initial Report and Recommendation: After testing, the team will create an initial report based on the test results. Additionally, it also provides suggestions for fixing the problem.
6) Re-evaluation: The audit firm works with the project’s development team to fix any security vulnerabilities detected in the initial report.
7) Final Audit Report: After fixing the existing issues, a detailed final audit report will be provided to the client.
The main security vulnerabilities checked during smart contract audits are:
1) Reentrancy attack: This attack occurs when a glitch in a smart contract causes an external call to be sent to an untrusted contract, leading to the exfiltration of funds.
2) Front-running: Improperly written code helps fraudsters to know information before a blockchain transaction and profit from it.
3) Logic errors: These errors are the most common forms of vulnerabilities, such as spelling or basic coding mistakes.
4) Integer overflow and underflow: Here the smart contract performs incorrect arithmetic operations, resulting in incorrect calculations.
5) Timestamp dependency: Contracts that rely heavily on timestamps can be advantageous for miners to manipulate to some extent.
Yes, it is possible if you have an experienced in-house blockchain security team and the necessary tools. However, it is difficult to match the audit quality of the best auditing firms that have worked on large-scale cryptocurrency projects.
final thoughts
In conclusion, auditing your project’s smart contracts is a must to avoid future hacks and attacks. Additionally, ensure that a quality audit is conducted by an industry expert.
All smart contract auditing companies listed in this article offer industry standard auditing services. In the end, it’s up to you to evaluate and choose the best service for your crypto project.
Next, check out the best crypto staking platforms.
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