Company lists · Data refreshed September 2026

Top 25 Security architecture consulting firms based in Austin, United States

RevenueBase identified 85 security architecture consulting firms headquartered in Austin, United States as of September 2026 and tracks 611 professional contacts across them, including 250 with verified work emails. Across the United States, New York is the largest hub for this category (144 companies); Austin has 85.

This list covers security architecture consulting 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 14, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
85Companies
611Contacts tracked
250Verified emails
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The 25 largest security architecture consulting firms based in Austin, United States

Ranked by team size
Top 25 of 85 security architecture consulting firms based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to security architecture consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 20261,001-5,000167 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 202651-200119 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 14, 2026
3Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-5031 contacts →

Indirect evidence

“Providing true independent consultation for your product needs.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-5028 contacts →

Partial evidence

“We live in a world where security is what we all strive for but struggle to find.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-5013 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 14, 2026
6Indirect evidenceAustin, United StatesHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

“Enterprise Engineering Solutions, Inc.(EES) is a top-ranked consultancy firm in the USA, providing industry-proven solutions to streamline IT environments.”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-108 contacts →

Strong evidence

“ESCO is an Austin, TX, based consulting firm formed in 2002 by public safety and event security professionals completing their assignment on the Salt Lake City Winter Olympic…”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-507 contacts →

Partial evidence

“Transforming the World of Cyber Security by Innovation and Simplifying the implementation using DevSecOps." In today’s fast -paced world, keeping business and IT systems up to…”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-506 contacts →

Partial evidence

“Secure Bearing is a globally recognized provider of white-glove professional services that deliver business outcomes with an unwavering commitment to security.”

Source: RevenueBase Database · checked Sep 14, 2026
10Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-506 contacts →

Partial evidence

“Aspiryon is a provider of Information Technology and Physical Security Solutions, that sets a standard of excellence for the clients that we serve.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-106 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-505 contacts →

Partial evidence

“Fidelis Networks is a cybersecurity consulting and enterprise training firm that helps organizations reduce risk, modernize secure infrastructure, and build capable internal teams.”

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-105 contacts →

Partial evidence

“Gardient provides managed services, systems integration and consulting.”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceAustin, United StatesHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-504 contacts →

Partial evidence

“With our heritage rooted in identity engineering teams at SailPoint, Waveset, and Sun Microsystems, we are uniquely qualified to provide an unparalleled level of expert consulting…”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“HOPZERO uses a patented, next-gen network security solution to protect enterprise data.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-503 contacts →

Partial evidence

“Data Defense Partners is your strategic ally in securing today’s digital enterprise.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“Fidelis Risk Advisory helps navigate the leadership challenges and complexity around building and managing information security programs.”

Source: RevenueBase Database · checked Sep 14, 2026
19Strong evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-103 contacts →

Strong evidence

“We're a specialty consulting firm that provides information security, data privacy, IT, cyber security assurance and trust expertise.”

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-502 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 14, 2026
21Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“zibernetics is a consultancy that helps companies wanting to improve their security operations.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Virtual CSO focuses on the needs of our clients.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202611-501 contacts →

Partial evidence

“The Lindemann Group LLC - Executive Security Solutions Welcome to The Lindemann Group LLC, where we redefine executive security with a commitment to discretion, vigilance, and…”

Source: RevenueBase Database · checked Sep 14, 2026
24Strong evidenceAustin, TX, United StatesHQ checked Sep 14, 20261-101 contacts →

Strong evidence

“Providing an excellent consulting service for network and security infrastructure and graphic designs.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceAustin, United StatesHQ checked Sep 14, 20261-101 contacts →

Partial evidence

“We provide CFIUS, DCSA, and Team Telecom mitigation experts for Security Director, Outside Director, Proxy Holder, Voting Trustee, Divestment Trustee, Security Officer, Third…”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 85 security architecture consulting firms based in Austin, United States

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Security architecture consulting firms based in Austin, United States at a glance

As of Sep 14, 2026
40.9%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
22
51-200
3
201-500
1
1,001-5,000
1

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 85 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 architecture consulting 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 “security architecture consulting 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 security architecture consulting 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 security architecture consulting 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, 250 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 14, 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 architecture consulting firms by metro in the United States

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 security architecture consulting 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 security architecture consulting firms are there based in Austin, United States?

RevenueBase identified 85 security architecture consulting 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?

Ntirety, headquartered in Austin, tops this list with the largest team on record.

Which city in the United States has the most security architecture consulting firms?

New York leads the United States with 144 headquartered companies, followed by Washington (111) and Atlanta (107). Austin has 85.

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 250 verified decision-maker contacts tracked across these 85 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 14, 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.