Company lists · Data refreshed November 2026

Top 25 Web3 security firms based in the United States

RevenueBase identified 272 company matches for web3 security firms associated with the United States as of November 2026 and tracks 3,521 professional contacts across them, including 1,045 with verified work emails. New York is the largest hub.

This list covers company matches for web3 security firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
272Companies
3,521Contacts tracked
1,045Verified emails
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The 25 largest web3 security firms based in the United States

Ranked by team size
Top 25 of 272 company matches for web3 security firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAustin, TX, United StatesHQ recorded Nov 5, 2026n/a693 contacts →

Exact match

“The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500205 contacts →

Exact match

“CertiK is the largest Web3 security services provider, founded in December 2017 in New York by two professors from Yale and Columbia University.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchNew York, United StatesHQ recorded Nov 5, 202651-200151 contacts →

Exact match

“Blockaid is the onchain security platform trusted by chains, protocols, wallets, exchanges, banks, and digital asset managers to understand and secure what matters most.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchMiami, United StatesHQ recorded Nov 5, 202651-200109 contacts →

Exact match

“Quicknode simplifies blockchain for teams big and small.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchDenver, CO, United StatesHQ recorded Nov 5, 202651-200102 contacts →

Exact match

“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchNew York, United StatesHQ recorded Nov 5, 202611-5094 contacts →

Exact match

“Sherlock secures the systems powering the onchain economy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchMetaverse, United StatesHQ recorded Nov 5, 202651-20083 contacts →

Exact match

“Halborn is the leader in enterprise blockchain security & risk solutions for top global financial services firms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchUsa, United StatesHQ recorded Nov 5, 202651-20071 contacts →

Exact match

“Latacora develops, grows, and maintains information security practices for tech-forward businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchRaleigh, NC, United StatesHQ recorded Nov 5, 202651-20059 contacts →

Exact match

“Kaleido is an award-winning, enterprise-grade Web3 platform making blockchain and digital assets radically simple for organizations to adopt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchUnited StatesHQ recorded Nov 5, 202651-20053 contacts →

Exact match

“Zellic specializes in securing emerging technologies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 202651-20052 contacts →

Exact match

“Quantstamp is a global leader in blockchain security, on a mission to secure the future of web3.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMiami, United StatesHQ recorded Nov 5, 202611-5051 contacts →

Exact match

“The first marketplace for web3 security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 5, 202611-5050 contacts →

Exact match

“Originally independent security researchers, our team has a proven track record in both web3 and traditional security.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchRedmond, WA, United StatesHQ recorded Nov 5, 202651-20041 contacts →

Exact match

“For over two decades, marquee clients have trusted Casaba to test the most sophisticated products in the world.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchGrand Rapids, MI, United StatesHQ recorded Nov 5, 202611-5040 contacts →

Exact match

“VDA Labs is on a mission to make the world a safer place through improved Cyber Security!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchDover, DE, United StatesHQ recorded Nov 5, 202611-5038 contacts →

Exact match

“QuillAudits provides end-to-end blockchain security for tokenisation, stablecoin, custody and digital-asset platforms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchBaltimore, MD, United StatesHQ recorded Nov 5, 202611-5033 contacts →

Exact match

“Companies come to ISE when they need to find and fix their security vulnerabilities and prove their tech is secure.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“Cyfrin is a company dedicated to bringing institutional-level smart contract security audits, tools, education, and certifications to the world's most targeted protocols…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchStevens Point, WI, United StatesHQ recorded Nov 5, 202611-5031 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchAll Over The Us, United StatesHQ recorded Nov 5, 202611-5028 contacts →

Exact match

“With offices all over the United States and Canada, Atredis Partners was created by a number of security industry veterans who wanted to prioritize offering quality and client…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Veridise is a blockchain security company founded by a team of world-class researchers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchManhattan, NY, United StatesHQ recorded Nov 5, 20261-1027 contacts →

Exact match

“Inco is the universal confidentiality layer of Web3, powered by fully homomorphic encryption (FHE) and secured by Ethereum, enabling the development of next-frontier decentralized…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchMiami, FL, United StatesHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“zeroShadow provides full-stack Web3 security solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchReno, NV, United StatesHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“Dara Security is an award-winning information security company, partnering with clients to find vulnerabilities in their networks, offering solutions for protecting sensitive…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchNew York, CA, United StatesHQ recorded Nov 5, 202611-5015 contacts →

Exact match

“Include Security is a premiere security consulting company executing thousands of assessments of all types of technology for hundreds of clients since 2011.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 272 web3 security firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,045 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Web3 security firms based in the United States at a glance

As of Nov 5, 2026
29.7%Verified-email coverage
12.9Average contacts per company
1-10Median size (employees)
6.6%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
155
11-50
92
51-200
18
201-500
5
501-1,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 272 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “web3 security firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,045 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “web3 security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many web3 security firms are there based in the United States?

RevenueBase identified 272 company matches for web3 security firms associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Synack RED Team tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most web3 security firms?

New York leads with 18 company records, followed by Austin (13) and San Francisco (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,045 professional contacts with verified work emails tracked across these 272 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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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 SmartSearch, 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.