Company lists · Data refreshed September 2026

Top 25 Small cybersecurity companies based in Houston, United States

Name: Small cybersecurity companies based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 81 companies tracked

RevenueBase identified 81 small cybersecurity companies headquartered in Houston, United States as of September 2026 and tracks 1,536 professional contacts across them, including 711 with verified work emails. New York is the largest hub.

This list covers small cybersecurity companies headquartered in Houston, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

81Companies

1,536Contacts tracked

711Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest small cybersecurity companies based in Houston, United States

Ranked by team size

Top 25 of 81 small cybersecurity companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to small cybersecurity 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Meriplex	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	450 contacts →
	Indirect evidence “If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.” Source: RevenueBase Database · checked Sep 21, 2026
2	Amsys Innovative Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	302 contacts →
	Indirect evidence “AMSYS is a nationwide IT Services Provider headquartered in Houston, TX.” Source: RevenueBase Database · checked Sep 21, 2026
3	Valuementor	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	167 contacts →
	Partial evidence “ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
4	Aldridge	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	132 contacts →
	Strong evidence “Aldridge is an IT outsourcing, consulting, and cybersecurity company that specializes in providing best-fit technology solutions to midsize organizations and small organizations…” Source: RevenueBase Database · checked Sep 21, 2026
5	Scis Security	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	58 contacts →
	Indirect evidence “Accredited and Veteran Owned and Operated •Cyber Security \| MSSP Security Operations Center, CISO Advisory, Penetration Testing, Incident Response DFIR), and IT Security…” Source: RevenueBase Database · checked Sep 21, 2026
6	Quantavenues	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	n/a	53 contacts →
	Partial evidence “Quantavenues is a premium cybersecurity consulting and managed security partner for mid-market and enterprise organizations, built for the threat landscape of 2026, not the…” Source: RevenueBase Database · checked Sep 21, 2026
7	Alliant Cybersecurity	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	24 contacts →
	Partial evidence “Several years ago as cyber threats were becoming more and more advanced, we decided to search for a cybersecurity partner to help protect our client’s sensitive data and our…” Source: RevenueBase Database · checked Sep 21, 2026
8	Neorhino IT Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	23 contacts →
	Indirect evidence “Born in 1998 during the dot-com bubble, neoRhino has evolved into a leading, innovative provider of business technology solutions.” Source: RevenueBase Database · checked Sep 21, 2026
9	SET Solutions, A Trace3 Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	21 contacts →
	Indirect evidence “Set Solutions is now a Trace3 Company.” Source: RevenueBase Database · checked Sep 21, 2026
10	Invoke	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	18 contacts →
	Partial evidence “Invoke integrates unified cybersecurity and innovative business solutions for mid-to-large enterprises.” Source: RevenueBase Database · checked Sep 21, 2026
11	Cyber ONE Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “Cyber One Solutions is a Info Security and IT Managed Services and Consulting Company.” Source: RevenueBase Database · checked Sep 21, 2026
12	RED Trident INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
13	Intelos	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “At Intelos, we drive meaningful change, revolutionizing business capabilities through high-quality IT services.” Source: RevenueBase Database · checked Sep 21, 2026
14	H5 Strategic Alliances	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “H5 Strategic Alliances seeks to defend an organization’s infrastructure against cybersecurity threats and vulnerabilities.” Source: RevenueBase Database · checked Sep 21, 2026
15	High Standards Technology, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “Our mission is simple:"Be the Best of the Best".” Source: RevenueBase Database · checked Sep 21, 2026
16	NSC Information Technology Group	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect evidence “We solve IT challenges.” Source: RevenueBase Database · checked Sep 21, 2026
17	Digital Crisis, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “We are a Cybersecurity firm that takes care of law firms.” Source: RevenueBase Database · checked Sep 21, 2026
18	Westerman Associates	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	5 contacts →
	Indirect evidence “Westerman Associates is an IT support and consulting firm with more than 40 years of experience helping businesses simplify technology, reduce risk, and keep operations running…” Source: RevenueBase Database · checked Sep 21, 2026
19	AA Networks	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “AA Networks provides world class cybersecurity services and solutions, including Managed Detection and Response (MDR), cybersecurity compliance services, and Active Directory…” Source: RevenueBase Database · checked Sep 21, 2026
20	Cyberaccord	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “CyberAccord: Leading Managed Cybersecurity Services for Enterprises CyberAccord is a leading managed cybersecurity services provider that offers full-service solutions to…” Source: RevenueBase Database · checked Sep 21, 2026
21	John&partners, Llc. Cybersecurity	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Nhà tư vấn và cung cấp các giải pháp công nghệ bảo mật an ninh mạng cho các tổ chức và doanh nghiệp” Source: RevenueBase Database · checked Sep 21, 2026
22	Cybersecurity IT Consulting LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “We specialize in delivering top-notch cybersecurity and IT solutions, including 100% remote work services, XDR (Extended Detection and Response), advanced penetration testing, and…” Source: RevenueBase Database · checked Sep 21, 2026
23	pc.solutions.net	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “We help mid market organizations operate with clarity, security, and confidence as they scale.” Source: RevenueBase Database · checked Sep 21, 2026
24	Corvit Networks LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	3 contacts →
	Partial evidence “Welcome to Corvit Networks LLC, where our passion for cybersecurity has been central to our purpose.” Source: RevenueBase Database · checked Sep 21, 2026
25	Veloci	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence “Cyber Security, Managed IT, and Communication Solutions for the 21st Century!” Source: RevenueBase Database · checked Sep 21, 2026

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: small cybersecurity companies. 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 small cybersecurity companies.
Partial evidence: Its own public description names part of small cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name small cybersecurity companies. 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 25 of 81 small cybersecurity companies based in Houston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 711 reachable decision-makers.

Free signup · no credit card

View the full list →

Small cybersecurity companies based in Houston, United States at a glance

As of Sep 21, 2026

46.3%Verified-email coverage

19.0Average contacts per company

1-10Median size (employees)

159.3%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 81 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 small cybersecurity 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 Houston, United States whose own description of what they do matches “small cybersecurity 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 small cybersecurity 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 small cybersecurity companies, and records with no verified work email. Companies headquartered outside Houston 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, 711 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.

Small cybersecurity 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 small cybersecurity 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 small cybersecurity companies are there based in Houston, United States?

RevenueBase identified 81 small cybersecurity companies headquartered in Houston, 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?

Meriplex, headquartered in Houston, tops this list with the largest team on record.

Which city has the most small cybersecurity companies?

New York leads with 129 headquartered companies, followed by Atlanta (84) and Austin (83).

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 711 verified decision-maker contacts tracked across these 81 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.

Ready to reach these companies? Verified emails and direct dials for all 81 small cybersecurity companies based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Small cybersecurity companies by geography

Browse the directory

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.