Company lists · Data refreshed September 2026

Top 25 Security posture management companies based in Austin, United States

RevenueBase identified 79 security posture management companies headquartered in Austin, United States as of September 2026 and tracks 991 professional contacts across them, including 470 with verified work emails. New York is the largest hub.

This list covers security posture management 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, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
79Companies
991Contacts tracked
470Verified emails
Explore all 79 companies → Free signup · no credit card · 500 free credits

The 25 largest security posture management companies based in Austin, United States

Ranked by team size
Top 25 of 79 security posture management companies based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names security posture management companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
NtiretyIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 20261,001-5,000167

“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, 2026
2
CleardataPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202651-200145

“ClearDATA is the most trusted managed multi-cloud security, compliance, and operations solution provider specialized for healthcare.”

Source: company website · checked Sep 6, 2026
3
PraetorianIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202651-200145

“Praetorian helps enterprises reduce material risk by revealing their environment exactly as an attacker would.”

Source: company website · checked Sep 6, 2026
4
SOLISPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202651-200137

“Solis is a leading provider of managed cyber security services and cyber incident response.”

Source: company website · checked Sep 6, 2026
5
Sevco SecurityPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202651-20033

“Sevco Security is now part of Arctic Wolf.”

Source: company website · checked Sep 6, 2026
6Austin, TX, United StatesHQ checked Sep 6, 202611-5028

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

Source: company website · checked Sep 6, 2026
7
Ghost SecurityIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-5020

“Putting enterprise agents to work.”

Source: company website · checked Sep 6, 2026
8
Recon InfosecPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-5019

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

Source: company website · checked Sep 6, 2026
9
BugswaggerIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-5017

“BugSwagger is a premier cybersecurity firm specializing in advanced penetration testing solutions.”

Source: company website · checked Sep 6, 2026
10
SaltycloudIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-5013

“SaltyCloud is a mission-driven cybersecurity company helping organizations manage governance, risk, and compliance without the chaos.”

Source: company website · checked Sep 6, 2026
11Austin, TX, United StatesHQ checked Sep 6, 202611-5012

“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: company website · checked Sep 6, 2026
12
inquest.netPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-5010

“At InQuest, we specialize in providing comprehensive network-based security solutions that empower organizations to protect their most critical assets: their people.”

Source: company website · checked Sep 6, 2026
13
Cyberforce SecurityPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-506

“CyberForce Security is a cybersecurity-focused Value Added Distributor (VAD) helping MSPs, MSSPs, VARs, and IT solution providers build profitable, enterprise-grade security…”

Source: company website · checked Sep 6, 2026
14Austin, TX, United StatesHQ checked Sep 6, 202611-506

“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, 2026
15
Framework SecurityPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-106

“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, 2026
16
GardientIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-105

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

Source: company website · checked Sep 6, 2026
17
IntelliguardsIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-505

“At Intelliguards, we are on the frontline of cybersecurity, offering intelligence-led solutions tailored to the unique challenges of modern digital landscapes.”

Source: company website · checked Sep 6, 2026
18
HopzeroPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-104

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

Source: company website · checked Sep 6, 2026
19
Canitan LLCIndirect evidence
Austin, TX, United StatesHQ checked Sep 6, 202651-2003
Source: company website · checked Sep 6, 2026
20
Dayone CyberPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-103

“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: company website · checked Sep 6, 2026
21
DatadefensePartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-503

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

Source: company website · checked Sep 6, 2026
22
Bleach Cyber Techstars 23Indirect evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-102

“Bleach Cyber, an advanced cybersecurity platform tailored for SMBs and Startups that not only enhances operational cybersecurity but also fosters trust with customers and helps…”

Source: company website · checked Sep 6, 2026
23Austin, TX, United StatesHQ checked Sep 6, 202611-502

“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, 2026
24
Sigma InfosecPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 20261-102

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

Source: company website · checked Sep 6, 2026
25
Lindemann Group LLCPartial evidence
Austin, TX, United StatesHQ checked Sep 6, 202611-501

“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: company website · checked Sep 6, 2026

Showing 25 of 79 security posture management companies based in Austin, United States

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

As of Sep 6, 2026
1-10Median size (employees)
New YorkLargest hub · 118 HQs
Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
47
11-50
24
51-200
7
1,001-5,000
1

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 79 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 posture management 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 Austin, United States whose own description of what they do matches “security posture management 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 security posture management 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 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, 470 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.

Frequently asked

How many security posture management companies are there based in Austin, United States?

RevenueBase identified 79 security posture management 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 has the most security posture management companies?

New York leads with 118 headquartered companies, followed by Atlanta (79) and Austin (79).

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 470 verified decision-maker contacts tracked across these 79 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.

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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.