Company lists · Data refreshed September 2026
Top 24 Network security firms based in Austin, United States
RevenueBase identified 69 network security firms headquartered in Austin, United States as of September 2026 and tracks 2,111 professional contacts across them, including 929 with verified work emails. New York is the largest hub.
This list covers network security 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
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 24 largest network security firms based in Austin, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,252 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 145 contacts → | ||||
Indirect evidence “Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 137 contacts → | ||||
Partial evidence “Solis is a leading provider of managed cyber security services and cyber incident response.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 119 contacts → | ||||
Indirect evidence “Edgile was founded in 2001 to deliver strategic cybersecurity and risk management services to the Fortune 500.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 45 contacts → | ||||
Indirect evidence “Our team of world-class reverse engineers discovers exploitable critical vulnerabilities in common commercial software and hardware BEFORE they can be manipulated by attackers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 21 contacts → | ||||
Indirect evidence “Mission-critical cybersecurity and IT solutions for businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 contacts → | ||||
Indirect evidence “Putting enterprise agents to work.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 19 contacts → | ||||
Partial evidence “Recon offers the best Managed Security Operations on the planet.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Indirect evidence “BugSwagger is a premier cybersecurity firm specializing in advanced penetration testing solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Partial evidence “ALCON DTS is a leader in the Managed IT Services and Cyber Security industry with headquarters located in Austin, TX.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Indirect evidence “Welcome to Allied IT Systems!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Strong evidence “At InQuest, we specialize in providing comprehensive network-based security solutions that empower organizations to protect their most critical assets: their people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 contacts → | ||||
Partial evidence “Since its inception, RedBlue Security has been building a global, community-based, high-caliber security recruitment practice modeled around confidentiality, integrity and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Indirect evidence “Luna Tech: Redefining IT with Value and Transparency At Luna Tech, we’re transforming IT services through simplicity, transparency, and unmatched value.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “At Intelliguards, we are on the frontline of cybersecurity, offering intelligence-led solutions tailored to the unique challenges of modern digital landscapes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Strong evidence “HOPZERO uses a patented, next-gen network security solution to protect enterprise data.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “Data Defense Partners is your strategic ally in securing today’s digital enterprise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “Why Settle For Peace Of Mind?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “American Information Security Group-AISG-is an information security Security-as-a-Service [SaaS] professional services firm founded in Austin, Texas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Are You a Small Business Just Starting Out?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “Managed Security Service Provider providing CyberSecurity, Compliance, Access Control & Video Surveillance” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Do you know if your sensitive data is secure?” Source: RevenueBase Database · checked Sep 21, 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: network security firms. 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 network security firms.
- Partial evidence
- Its own public description names part of network security firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name network security firms. 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 24 of 69 network security firms based in Austin, United States
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Network security firms based in Austin, United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Austin, so it is reported there. Company counts and contact totals on this page are exact for Austin, over 69 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 network security firms, 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.
- What qualifies
- Companies headquartered in Austin, United States whose own description of what they do matches “network security firms”. 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 network security firms), 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 network security 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 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, 929 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 21, 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.
Network security firms by metro in the United States
- Network security firms in New York112
- Network security firms in Austin69
- Network security firms in Houston66
- Network security firms in Miami66
- Network security firms in Atlanta64
- Network security firms in Chicago60
- Network security firms in Dallas59
- Network security firms in San Francisco59
- Network security firms in Washington54
- Network security firms in Los Angeles42
- Network security firms in San Diego42
- Network security firms in Tampa41
- Network security firms in Columbia36
- Network security firms in Las Vegas36
- Network security firms in Charlotte34
- Network security firms in Phoenix34
- Network security firms in Denver33
- Network security firms in Arlington31
- Network security firms in Orlando31
- Network security firms in Boston28
- Network security firms in San Antonio28
- Network security firms in Seattle28
- Network security firms in Sheridan26
- Network security firms in Wilmington26
- Network security firms in Baltimore25
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 network security firms, 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 network security firms are there based in Austin, United States?
RevenueBase identified 69 network security 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 network security firms?
New York leads with 112 headquartered companies, followed by Austin (69) and Houston (66).
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 929 verified decision-maker contacts tracked across these 69 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 21, 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 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.
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