Company lists · Data refreshed September 2026

Top 24 Security management consulting companies based in Austin, United States

RevenueBase identified 91 security management consulting companies headquartered in Austin, United States as of September 2026 and tracks 768 professional contacts across them, including 266 with verified work emails. Across the United States, New York is the largest hub for this category (203 companies); Austin has 91.

This list covers security management consulting companies 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 29, 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 29, 2026 86% judged on-target in blind review
91Companies
768Contacts tracked
266Verified emails
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The 24 largest security management consulting companies based in Austin, United States

Ranked by team size
Top 24 of 91 security management consulting companies based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to security management consulting companies: 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 29, 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 29, 2026
2Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202651-200119 contacts →

Partial evidence

“Edgile was founded in 2001 to deliver strategic cybersecurity and risk management services to the Fortune 500.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-5043 contacts →

Partial evidence

“Tri Shield Security and Investigations is an Austin Texas based company built on old fashioned ideals with a leading edge mentality.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202651-20035 contacts →

Partial evidence

“Scout was founded with a mission to train and deploy the best security personnel in the world to create safe environments that increase asset value with the best client experience…”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-5031 contacts →

Indirect evidence

“Providing true independent consultation for your product needs.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
7Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-5025 contacts →

Partial evidence

“Step into the realm of unparalleled security solutions with TriStar Commercial LLC.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-5019 contacts →

Partial evidence

“Recon offers the best Managed Security Operations on the planet.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
10Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“Welcome To Falcon Patrol Security When it comes to the security of your firm, your organization, your person, or your property, there is no such thing as a second chance.”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
12Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
13Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-105 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
15Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“We are a team of experienced and certified crime prevention consultants who provide customized solutions for your security needs.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“dayONE Cyber is a Managed Security Service Provider (MSSP) which provides our customers with the best service in the industry, coupled with the most advanced, holistic…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-503 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
19Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 202611-503 contacts →

Partial evidence

“At Centex Security Services, we provide professional and dependable security solutions for businesses, communities, construction sites, and event venues across Texas.”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
21Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Founded in 2019, Enigma Advisory is a strategic advisory firm that helps organizations plan, fund, govern, and execute complex initiatives.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 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 29, 2026
23Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Sigma InfoSec is a managed security services provider (MSSP) focused on providing best-in-class cybersecurity solutions to small and medium sized businesses.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026

Showing 24 of 91 security management consulting companies based in Austin, United States

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Security management consulting companies based in Austin, United States at a glance

As of Sep 29, 2026
34.6%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
33
51-200
6
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 91 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 management consulting companies, 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 management consulting companies”. 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 management consulting companies), 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 management consulting companies, 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, 266 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 29, 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 management consulting companies 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 management consulting companies, 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 management consulting companies are there based in Austin, United States?

RevenueBase identified 91 security management consulting companies 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 management consulting companies?

New York leads the United States with 203 headquartered companies, followed by Washington (131) and Houston (126). Austin has 91.

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 266 verified decision-maker contacts tracked across these 91 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 29, 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.