Company lists · Data refreshed September 2026
Top 21 Infrastructure security companies based in San Francisco, United States
RevenueBase identified 60 infrastructure security companies headquartered in San Francisco, United States as of September 2026 and tracks 651 professional contacts across them, including 243 with verified work emails. New York is the largest hub.
This list covers infrastructure security companies headquartered in San Francisco, United States, 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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.
The 21 largest infrastructure security companies based in San Francisco, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 210 | ||||
“Vehere is an AI cybersecurity company operating at the intersection of national security and enterprise security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 207 | ||||
“TAC Security (NSE: TAC) TAC Security, a leading publicly listed global cybersecurity company specializing in vulnerability management, today serves clients across 100 countries…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 26 | ||||
“We specialize in Web Application and API penetration Testing, Cyber Threat Intelligence, and Detecting Account Takeovers (ATOs) from attackers.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 | ||||
“Sentant is a next-generation cybersecurity & IT services firm with a team of experienced technology professionals.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 14 | ||||
“EpicCyber: Empowering Your Business with Zscaler, Crowd strike, and Okta Cybersecurity Solutions” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10 | ||||
“At Securisea, we are trusted and proven experts in compliance and security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | Metabase QIndirect evidence | 9 | |||
“Metabase Q offers an end-to-end platform that enables businesses to manage, measure and mature their cybersecurity.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 | ||||
“Humanize is an innovative and data-conscious company that transforms cybersecurity weaknesses to human readable quantified risks for C-Suite.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4 | ||||
“Dogpatch Solutions is a leading IT consulting firm that specializes in cybersecurity assessments, migrations, networking and cloud computing solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4 | ||||
“909Cyber is a cybersecurity firm offering expert software sales, consulting and resourcing services.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3 | ||||
“Advanced Linux defense technology is designed to protect critical infrastructure in real time.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3 | ||||
“With over two decades of experience in sensitive data management across hundreds of clients and installations, we at TekLeap understand the inherent weaknesses and threats in…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | ServadusIndirect evidence | 3 | |||
“Cybersecurity by Design, we help organizations with their cybersecurity and compliance programs through management and sustainability, consulting, and assessing.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 | ||||
“Defend against cyber criminals with engaging security awareness and social engineering prevention videos, training, talks and penetration testing.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 | ||||
“Cobaltix Compliance provides risk assessments, creates policies and procedures, conducts vulnerability assessments and penetration testing, and performs vendor due diligence…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1 | ||||
“Infrastructure powering smarter, safer communities” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | PosturityIndirect evidence | 1 | |||
“Posturity’s managed cybersecurity technology governance service optimizes the spend, protection, compliance, and manageability of your stack.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 | ||||
“We are mainly focused on providing managed security services as well as consultancy on security architecture.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
“Fusion Security Solutions provides expert knowledge and methods, while delivering effective, efficient, and consistent security and managed services solutions for your business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“Secure your website in 10 minutes.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“D3 Networks specializes in meeting the information technology and cybersecurity needs of firms in the financial industry.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 60 infrastructure security companies based in San Francisco, United States
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Infrastructure security companies based in San Francisco, United States at a glance
As of Sep 3, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 60 companies.
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 infrastructure security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in San Francisco, United States whose own description of what they do matches “infrastructure security companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among infrastructure security companies, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
- 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 an evidence 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, 243 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 3, 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.
Infrastructure security companies by metro in the United States
- Infrastructure security companies in New York141
- Infrastructure security companies in Washington105
- Infrastructure security companies in Houston98
- Infrastructure security companies in Miami88
- Infrastructure security companies in Austin86
- Infrastructure security companies in Atlanta80
- Infrastructure security companies in Chicago76
- Infrastructure security companies in Dallas75
- Infrastructure security companies in Tampa71
- Infrastructure security companies in San Francisco60
- Infrastructure security companies in Arlington57
- Infrastructure security companies in Columbia54
- Infrastructure security companies in Los Angeles53
- Infrastructure security companies in San Diego51
- Infrastructure security companies in Charlotte47
- Infrastructure security companies in Orlando47
- Infrastructure security companies in Boston44
- Infrastructure security companies in Reston43
- Infrastructure security companies in Las Vegas42
- Infrastructure security companies in Denver41
- Infrastructure security companies in San Antonio40
- Infrastructure security companies in Fairfax37
- Infrastructure security companies in Phoenix37
- Infrastructure security companies in Alexandria36
- Infrastructure security companies in Herndon34
- Infrastructure security companies in Baltimore33
- Infrastructure security companies in Huntsville33
- Infrastructure security companies in Mclean33
- Infrastructure security companies in Ashburn31
- Infrastructure security companies in Scottsdale27
- Infrastructure security companies in Seattle26
- Infrastructure security companies in Sheridan26
- Infrastructure security companies in San Jose25
- Infrastructure security companies in Wilmington25
Frequently asked
How many infrastructure security companies are there based in San Francisco, United States?
RevenueBase identified 60 infrastructure security companies headquartered in San Francisco, United States 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?
Vehere, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most infrastructure security companies?
New York leads with 141 headquartered companies, followed by Washington (105) and Houston (98).
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 243 verified decision-maker contacts tracked across these 60 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 3, 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.
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