Company lists · Data refreshed September 2026
Top 21 Security auditing firms based in Austin, United States
RevenueBase identified 67 security auditing firms headquartered in Austin, United States as of September 2026 and tracks 2,027 professional contacts across them, including 925 with verified work emails. New York is the largest hub.
This list covers security auditing firms headquartered in Austin, 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 6, 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 security auditing firms based in Austin, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,252 | ||||
“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 167 | ||||
“11:11 Systems is a managed infrastructure solutions provider that empowers customers to modernize, protect, and manage mission-critical applications and data, leveraging 11:11’s…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 119 | ||||
“Edgile was founded in 2001 to deliver strategic cybersecurity and risk management services to the Fortune 500.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 | ||||
“When we started Eden Data in 2021, our goal was to change the way high-growth organizations think about compliance and cybersecurity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 33 | ||||
“Sevco Security is now part of Arctic Wolf.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 28 | ||||
“We live in a world where security is what we all strive for but struggle to find.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 | ||||
“BugSwagger is a premier cybersecurity firm specializing in advanced penetration testing solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 | ||||
“ALCON DTS is a leader in the Managed IT Services and Cyber Security industry with headquarters located in Austin, TX.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“SaltyCloud is a mission-driven cybersecurity company helping organizations manage governance, risk, and compliance without the chaos.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 | ||||
“Rethink Human Risk.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 | ||||
“THE trusted partner for state and local governments in combating cyber threats Our journey began with Splunk and evolved to meet our clients' diverse needs, leading us to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“Mercury Risk and Compliance stands at the forefront of the cybersecurity and technology risk management landscape, pioneering innovative solutions and methodologies to safeguard…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 | ||||
“Framework Security is an award-winning cybersecurity firm specializing in penetration testing, AI governance, virtual CISO services, SOC 2 compliance, and full-spectrum security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 | ||||
“HOPZERO uses a patented, next-gen network security solution to protect enterprise data.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 | ||||
“Data Defense Partners is your strategic ally in securing today’s digital enterprise.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“Fidelis Risk Advisory helps navigate the leadership challenges and complexity around building and managing information security programs.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 | ||||
“We're a specialty consulting firm that provides information security, data privacy, IT, cyber security assurance and trust expertise.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Ready ConsultingPartial evidence | 3 | |||
“Ready Consulting is a licensed CPA cybersecurity firm and with more than a decade of experience, we understand the complexities of the security audit and compliance process.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“American Information Security Group-AISG-is an information security Security-as-a-Service [SaaS] professional services firm founded in Austin, Texas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“Do you know if your sensitive data is secure?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 67 security auditing firms based in Austin, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 925 reachable decision-makers.
Free signup · no credit card
Security auditing firms based in Austin, United States at a glance
As of Sep 6, 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 Austin, over 67 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 security auditing firms, 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 Austin, United States whose own description of what they do matches “security auditing firms”. 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 security auditing firms, and records with no verified work email. Companies headquartered outside Austin 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, 925 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 6, 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.
Security auditing firms by metro in the United States
- Security auditing firms in New York86
- Security auditing firms in Atlanta77
- Security auditing firms in Austin67
- Security auditing firms in Houston66
- Security auditing firms in Tampa64
- Security auditing firms in Washington64
- Security auditing firms in Chicago58
- Security auditing firms in Dallas54
- Security auditing firms in Miami50
- Security auditing firms in San Francisco50
- Security auditing firms in Los Angeles43
- Security auditing firms in San Diego36
- Security auditing firms in Arlington33
- Security auditing firms in Charlotte32
- Security auditing firms in Seattle31
- Security auditing firms in Las Vegas27
- Security auditing firms in Columbia26
- Security auditing firms in Denver26
Frequently asked
How many security auditing firms are there based in Austin, United States?
RevenueBase identified 67 security auditing firms headquartered in Austin, 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?
Thales Cybersecurity Products, headquartered in Austin, tops this list with the largest team on record.
Which city has the most security auditing firms?
New York leads with 86 headquartered companies, followed by Atlanta (77) and Austin (67).
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 925 verified decision-maker contacts tracked across these 67 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 67 security auditing firms based in Austin, United States. Start with a free account, no credit card.
Get the full listRelated lists
Security auditing firms by geography
- Security auditing firms based in the United States
- Security auditing firms based in the United Kingdom
- Security auditing firms based in France
- Security auditing firms based in Canada
- Security auditing firms based in Brazil
- Security auditing firms based in Germany
- Security auditing firms based in Australia
- Security auditing firms based in Spain
- Security auditing firms based in the Netherlands
- Security auditing firms based in Poland
- Security auditing firms based in South Africa
- Security auditing firms based in Switzerland
Browse the directory
Browse: Companies home · Security auditing firms in United States · All United States lists · All Security auditing firms lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security auditing firms based in the United States
- Security auditing firms based in the United Kingdom
- Security auditing firms based in France
- Security auditing firms based in Canada
- Security auditing firms based in Brazil
- Security auditing firms based in Germany