Top 11 Blockchain Auditing Companies

1. Astra Pentest

Astra Pentest - blockchain auditing companies

Features:

Scanner Capabilities: Blockchain, Web and Mobile Apps, Cloud, API, and Networks
Accuracy: Zero False Positives Assured (Vetted Scans)
Expert Remediation: Yes
Continuous Monitoring: Yes (Smart Contract Audits and CI/CD integration)
Cost: $199/month

Astra Pentest is one of the best blockchain security companies, providing manual and automated pentest services for blockchain, websites, mobile applications, cloud, networks, and APIs.

We at Astra incorporate automated scanning and manual testing, ensuring a thorough security assessment. This would ensure that different types of smart contracts, such as DAOs, DeFi protocols, and tokenized assets, are carefully checked.

Astra features an easy-to-use vulnerability management platform with our scanner testing for 9300+ test cases, updated fortnightly to include emerging vulnerabilities. Our platform generates detailed reports with risk scores that help you prioritize vulnerabilities, and our team provides helpful remediation guidance.

Integration with CI/CD pipelines and compliance scanning make Astra the right tool to streamline your DevSecOps. Astra increases your confidence in the blockchain ecosystem by maintaining the integrity and security of smart contracts—the backbone of this revolutionary technology.

Pros

Continuous proactive security testing.
CI/CD integration.
Collaborative remediation with in-call assistance from security experts.
Scan behind logged-in pages.
Zero false positives.
Optimized pentest for single-page apps.

Limitations

No free trial (offers a $7/week trial).
Minimal numbers of integration.

What Makes Astra the Best VAPT Solution?

We’re the only company that combines automated & manual pentest to create a one-of-a-kind pentest platform.
The Astra Vulnerability Scanner runs 9300+ tests to uncover every single vulnerability
Vetted scans ensure zero false positives.
Our intelligent vulnerability scanner emulates hacker behavior & evolves with every pentest.
Astra’s scanner helps you shift left by integrating with your CI/CD.
Our platform helps you uncover, manage & fix vulnerabilities in one place.
Trusted by the brands you trust like Agora, Spicejet, Muthoot, Dream11, etc.

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2. Hacken

Features:

Scanner Capabilities: Blockchain scanning, smart contract
Accuracy: False positives possible
Expert Remediation: Yes
Continuous Monitoring: Yes (offers Web3 bug bounty programs as well)
Cost: Quote on request

Founded in 2017 by security specialists and white hat hackers, Hacken provides services such as educating people on ethical hacking to help them prevent cyberattacks.

Hacken has several products, including the Hackenproof BugBounty platform, with over 10,000 ethical hackers. Their portfolio includes over 700 projects, aside from which they continue to invest in blockchain security ecosystem development while launching other internal projects like hVPN and hPass.

Pros

Structured and professional security testing.
Cooperative customer support.

Limitations

It can be a pricey blockchain auditing solution.
Prices are only available on request.

3. Trail of Bits

Features:

Scanner Capabilities: blockchain, mobile security, software assurance
Accuracy: False positives are possible
Expert Remediation: Yes
Continuous Monitoring: No
Cost: Quote on request

Since 2012, Trail of Bits has been a leading cybersecurity firm with an extensive client list that includes Adobe, Microsoft, Stripe, Reddit, and more. They provide security audits for blockchain, software hardening, infrastructure security, threat modeling, and cryptographic review.

At Trail of Bits, the staff doesn’t just focus on blockchain security but also creates tools to help developers and researchers identify and fix crucial vulnerabilities. Some notable tools they offer are Ethersplay, Slither, and Echidna.

Pros

They offer reasonable software assurance.
Research and development services to better serve clients.
Comprehensive support for unique needs.

Limitations

The tool is highly scalable.
Easy to integrate.
Great customer support.

4. Quantstamp

Features:

Scanner Capabilities: Web3, Blockchains, smart contracts
Accuracy: False positives possible
Expert Remediation: Yes
Continuous Monitoring: Yes (smart contract audits and bug bounty programs)
Cost: Quote on Request

Quantstamp is globally renowned for its smart contract auditing, which has secured over $200B in value. Selected from tech giants such as Google, Facebook, Apple, and Ethereum Foundation – their team of experienced security professionals is the best in the industry.

Quantstamp employs security experts who can audit blockchains in any language. They develop financial backer services for ecosystems included in Layer 1 blockchains and specialize in auditing various systems and protocols, like Ethereum 2.0, Solana, and BNB Chain.

Pros

Run by experienced security professionals.
Can audit blockchains in any language.

Limitations

It might not be a scalable solution.

5. PeckShield

Features:

Scanner Capabilities: Blockchain, smart contracts
Accuracy: False positives possible
Expert Remediation: Yes
Continuous Monitoring: Yes (threat monitoring and DAppTotal)
Cost: Not mentioned

PeckShield is a China-based security and audit firm with international team members. In 2018, the company made a name for itself by uncovering issues such as BatchOverflow within Ethereum smart contracts.

It has a variety of blockchain technology experiences its team offers. Through its various threat monitoring services, DAppTotal and CoinHolmes, they provide end-to-end protection for all blockchain users.

Pros

Audited big names in the industry, such as Aave, EOS, and Tron.
Provides end-to-end protection for all blockchain users.

Limitations

Limited blockchain coverage.

Astra Pentest is built by the team of experts that helped secure Microsoft, Adobe, Facebook, and Buffer

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6. SlowMist

Features:

Scanner Capabilities: Blockchain, smart contracts
Accuracy: False positives possible
Expert Remediation: No
Continuous Monitoring: Yes (continuous scanning)
Cost: Quote on request

SlowMist is a blockchain security firm founded in 2018. They have over a decade of experience in network security and helping secure some of the world’s most influential cryptocurrency exchanges, such as Binance, OKX, Huobi, Pancakeswap, and Crypto.com.

SlowMist also offers various security products, including MistTrack (a cryptocurrency tracker), Anti-money laundering (AML) software, Vulpush (vulnerability monitoring), and SlowMist Hacked (crypto hack archives).

Pros

Partnered with security firms such as Akamai, Cloudflare, FireEye, and BitDefender.
Offers a variety of products.

Limitations

Only focuses on blockchain and smart contracts.

7. Certik

Features:

Scanner Capabilities: Web and smart contract audits
Accuracy: False positives possible
Expert Remediation: Yes
Continuous Monitoring: Yes
Cost: Not available

Certik is a blockchain security company founded in 2018 by professors from Columbia and Yale. Certik uses formal verification and AI technology to provide end-to-end security audits for smart contracts.

By combining these two verification forms, they mathematically validate the safety of smart contracts—something that other companies have yet to perfect. They have established “CertiK Chain,” a security-centered blockchain that upgrades the safety of smart contracts.

Pros

Audits for popular chains such as Terra, Polygon, and The Sandbox.
Supported by well-known companies such as Coinbase and Golden Sachs.

Limitations

No mentionable Limitations.

8. OpenZeppelin

Features:

Scanner Capabilities: automation of smart contracts, blockchain security audits
Accuracy: False positives possible
Expert Remediation: No
Continuous Monitoring: No
Cost: Quote on request

OpenZeppelin sets a standard for secure blockchain applications. As a cybersecurity technology and services company, it is best known for its Solidity libraries and OpenZeppelin Contracts.

The SDK lets developers easily integrate OpenZeppelin’s libraries into their existing applications. Their “Ethernaut” game tests gamers’ ability to find vulnerabilities in smart contracts. The Defender service helps projects automate contract administration by creating automated scripts.

Pros

Easy integration with OpenZeppelin libraries
Provide free services like “Defender.”
Automation of contract administration
Free solution

Limitations

No particular limitations

9. Consensys Diligence

Features:

Scanner Capabilities: Blockchain, Ethereum smart contracts
Accuracy: False positives possible
Expert Remediation: No
Continuous Monitoring: No
Cost: Price on Request

Consensys is dedicated to creating innovative blockchain applications and software for the Ethereum network. Consensys’ Diligence cybersecurity product performs detailed security analyses of smart contracts so projects can deploy their Ethereum application without worry.

They provide blockchain security analysis tools and experienced, competent contract auditors who work together to achieve customer goals. The firm has protected over 100 blockchain companies and uncovered over 200 issues.

Pros

Worked on more than 100 projects with support from experienced auditors.
It has other services like fuzzing and scribble.

Limitations

Deployment time is easily affected.

10. Armors

Features:

Scanner Capabilities: Blockchain code, smart contracts
Accuracy: False positives are possible
Expert Remediation: No
Continuous Monitoring: Yes (continuous scanning)
Cost: Quote on Request

Armors was founded in 2017 and is engaged in implementing a technological analysis of blockchain security.

Armors partners with exchanges such as OKEX, Binance, Bybit, Huobi, Bitfinex, Kucoin, MXC, Bibox, etc., to provide code audit services to its partners. It also partners with other services such as Polygon, Solana, and Ethereum.

Pros

Provides security audit, penetration testing, and cross-chain migration.
It also provides platform security for over 2,000 blockchain applications

Limitations

Pricing not mentioned

11. Sigma Prime

Features:

Scanner Capabilities: Blockchain, smart contracts
Accuracy: High accuracy due to focus on research and development
Expert Remediation: Yes, they offer remediation guidance
Continuous Monitoring: No, primarily focused on audits
Cost: Quote on request

Sigma Prime is a blockchain security and research firm specializing in Ethereum smart contract security assessments. Their contributions to Ethereum 2.0 development include the creation of the Lighthouse client.

They provide deep security auditing, where expert researchers locate probable vulnerabilities. This research emphasis has driven their high accuracy rates.

Pros:

Expertise in Ethereum and smart contract security
Strong research foundation
In-depth audit reports

Limitations:

Primarily focused on the Ethereum ecosystem
Limited information on pricing publicly available

The Critical Role of Smart Contract Audits

Smart contracts are agreements executed automatically and have the contract conditions encoded into the code. These agreements control billions of dollars in decentralized independent organizations and money. However, flaws in these contracts can lead to devastating financial losses.

Blockchain auditing firms seem to be one of the most requisite needs in protection against the blockchain ecosystem. They audit various kinds of smart contracts to look out for vulnerabilities, such as:

Decentralized Autonomous Organizations (DAOs): These complex structures require in-depth audits to avoid mismanagement of funds and exploitation.
DeFi Protocols: These contracts manage much money and are prone to hacking. Audits are carried out to detect issues such as reentrancy and overflow errors.
Token Contracts: The success of token projects depends on accurate token distribution, proper governance mechanisms, and robust security features.
Exchange Contracts: Complex trading logic and matching orders allow rigorous auditing to detect market manipulation and avoid financial losses.

These and other types of smart contracts ensure security and integrity for participants, thanks to auditing firms that help establish trust in the blockchain industry and minimize possible risks for its participants.

Steps In Blockchain Auditing

1. Scope of Testing

Always define your audit goals before you begin the testing process with a blockchain auditor. You can also narrow down the scope of testing to several smaller goals related to different security areas and your specific needs.

2. Detection and Identification of Vulnerabilities

The next step is to review the code of the blockchain system or smart contract, which involves analyzing the code structure, logic, and flow to identify potential vulnerabilities. Manual code review and automated tools such as static analysis can be used to perform this step.

3. Exploitation

Once the code has been reviewed, it must be tested to identify potential vulnerabilities or weaknesses. This can include unit, integration, and stress testing, among others. A combination of automated and manual testing methods is usually used here to increase the reliability of the test.

4. Reporting

Finally, the results of the blockchain audit need to be compiled into a detailed report that identifies potential security risks and vulnerabilities and provides recommendations for addressing these issues. Share this report with stakeholders, the development team, and relevant regulatory bodies.

5. Remediation & Rescans

Based on the findings in the report, the developers collaborate with the testers to ensure that the vulnerabilities are remediated as quickly and efficiently as possible, and they formulate a rescan schedule to maintain continuous security.

Factors in Choosing the Right Blockchain Auditing Company

Expertise

One of the most important factors to consider when choosing a blockchain auditing company is its expertise. Look for a company with experience auditing blockchain systems and smart contracts and a team of cybersecurity professionals with expertise in various areas such as cryptography, network security, and software engineering.

Reputation

It’s also important to consider the blockchain auditing company’s reputation. Choose a company with a strong industry reputation and that has worked with known clients. You can check reviews and testimonials from previous clients to get an idea of their experience working with the company.

Blockchain Coverage

Consider the range of blockchain platforms that the auditing company can audit. Some companies specialize in auditing specific blockchain platforms, such as Ethereum, while others may be able to audit a broader range of platforms.

Transparency

Find a company with a transparent auditing process and methodology. The auditing company should provide detailed reports and findings to its clients and be open to answering any questions you may have about its process.

Cost

Cost is also an essential factor to consider when choosing a blockchain auditing company. Prioritize finding a company that offers flexible pricing options based on the scope and complexity of the project, and consider your budget when making a decision.

Customer support

Finally, consider the level of customer support that the auditing company provides. Look for a responsive company that is easy to communicate with and provides ongoing support throughout the auditing process and beyond.

Final Thoughts

The growing blockchain landscape requires strong security measures to maintain the integrity of smart contracts. In this blog, we discussed the critical role of auditing companies in discovering and partially preventing associated threats.

Taking the onus of a comprehensive blockchain audit against protecting your digital possessions and the general maintenance of trust is extremely important.

Comparing the different blockchain auditing companies can help improve your blockchain project’s security profile, prevent risks, and ensure a high level of security.

It is one small security loophole v/s your entire website or web application.

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FAQs

What are the best companies for blockchain auditing?

Astra Security, Hacken, Trail of Bits, and Quantstamp are among the leading blockchain auditing companies. They offer comprehensive security assessments and expert services to protect digital assets.

What are the benefits of blockchain auditing?

Blockchain auditing helps identify and mitigate vulnerabilities in smart contracts and other blockchain components, protecting digital assets and enhancing a project’s overall security posture.

How long does a blockchain audit take?

The duration of a blockchain audit typically ranges from 2 to 15 days, depending on the project’s complexity, the size of the codebase, and the specific audit scope.

Best 11 Blockchain Security Testing Companies