Company lists · Data refreshed September 2026
Top 25 Web3 security auditors worldwide
RevenueBase identified 481 web3 security auditors worldwide as of September 2026 and tracks 4,208 professional contacts across them, including 954 with verified work emails. The United States is the largest market and Dubai the largest hub.
This list covers web3 security auditors worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for web3 security auditors follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest web3 security auditors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 225 contacts → | ||||
Partial evidence “NRIITNRI NRI SecureTechnologies is a global service provider of next-generation Managed Security Services, cutting-edge Blockchain Security Solutions, and Consulting Services with…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 190 contacts → | ||||
Strong evidence “CertiK is the largest Web3 security services provider, founded in December 2017 in New York by two professors from Yale and Columbia University.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 181 contacts → | ||||
Partial evidence “Code4rena is the leading smart contract security marketplace, run by a 25-person team operating remotely.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 172 contacts → | ||||
Partial evidence “Hacken is an end-to-end blockchain security and compliance partner for digital assets.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 159 contacts → | ||||
Partial evidence “Immunefi is the leading onchain crowdsourced security platform, working with ground-breaking protocols such as Chainlink, Ethereum Foundation, Optimism, Arbitrum, and many more.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 128 contacts → | ||||
Partial evidence “OpenZeppelin is the security standard onchain finance is built on.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 107 contacts → | ||||
Partial evidence “HackenProof is an expert bug bounty and crowdsourced security marketplace helping companies find, validate, and fix vulnerabilities before exploitation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 99 contacts → | ||||
Strong evidence “The first marketplace for web3 security.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 94 contacts → | ||||
Indirect evidence “Sherlock secures the systems powering the onchain economy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 79 contacts → | ||||
Indirect evidence “Industry-leading formal verification tools & smart contract audits.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 78 contacts → | ||||
Partial evidence “Hypernative detects and neutralizes Web3 threats in real time.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 67 contacts → | ||||
Strong evidence “Quantstamp is a global leader in blockchain security, on a mission to secure the future of web3.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 66 contacts → | ||||
Indirect evidence “AI-enhanced Decentralized Data Analytics & Forensics Protocol | Blockchain Police | Backed by @coinbase @animocabrands @chainlink | Partners @mastercard @EY For queries, drop us…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 59 contacts → | ||||
Partial evidence “Spearbit is a network of world-class security researchers protecting financial and blockchain infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 45 contacts → | ||||
Strong evidence “Originally independent security researchers, our team has a proven track record in both web3 and traditional security.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 42 contacts → | ||||
Partial evidence “Since 2017, Verichains has been a pioneer and leading blockchain security firm in APAC, with extensive expertise in security, cryptography and core blockchain technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 41 contacts → | ||||
Partial evidence “QuillAudits provides end-to-end security for digital-asset platforms, including tokenisation frameworks, stablecoins, custody flows, and blockchain infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 40 contacts → | ||||
Partial evidence “Sigma Prime specialises in information security, blockchain, and system design.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 40 contacts → | ||||
Partial evidence “Zellic specializes in securing emerging technologies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Partial evidence “Cyfrin is a company dedicated to bringing institutional-level smart contract security audits, tools, education, and certifications to the world's most targeted protocols…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Strong evidence “SecureDApp is a blockchain security company that specialises in offering comprehensive security solutions to companies operating in the web3 space.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 29 contacts → | ||||
Indirect evidence “Vee4 Software is a team of researchers, scientists, mathematicians and blockchain enthusiasts building the future of Web 3.0 with decentralized applications and open source tools.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Indirect evidence “ChainSecurity builds trust within the blockchain ecosystem, and makes it secure for established organizations, governments and blockchain companies alike.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence “Since its inception in July 2021, Virtual Caim Pvt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 24 contacts → | ||||
Partial evidence “Veridise is a blockchain security company founded by a team of world-class researchers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: web3 security auditors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names web3 security auditors.
- Partial evidence
- Its own public description names part of web3 security auditors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name web3 security auditors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 481 web3 security auditors worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 954 reachable decision-makers.
Free signup · no credit card
Web3 security auditors worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among web3 security auditors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for web3 security auditors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “web3 security auditors”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names web3 security auditors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among web3 security auditors, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 954 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Web3 security auditors by location
4 lists · largest firstEvery Web3 security auditors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names web3 security auditors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many web3 security auditors are there worldwide?
RevenueBase identified 481 web3 security auditors worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Nriセキュアテクノロジーズ株式会社 NRI Securetechnologies, LTD, headquartered in Jing, tops this list with the largest team on record.
Which country has the most web3 security auditors?
The United States leads with 79 companies, followed by India (40) and the United Kingdom (28). Every web3 security auditors list by country and city is linked on this page.
Which city has the most web3 security auditors?
Dubai leads with 21 headquartered companies, followed by Singapore (15) and London (14).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 954 verified decision-maker contacts tracked across these 481 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 481 web3 security auditors worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.