Company lists · Data refreshed September 2026

Top 25 IT security consulting firms based in Houston, United States

Name: IT security consulting firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 148 companies tracked

RevenueBase identified 148 IT security consulting firms headquartered in Houston, United States as of September 2026 and tracks 989 professional contacts across them, including 322 with verified work emails. New York is the largest hub.

This list covers IT security consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 4, 2026 86% judged on-target in blind review

148Companies

989Contacts tracked

322Verified emails

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The 25 largest IT security consulting firms based in Houston, United States

Ranked by team size

Top 25 of 148 IT security consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT security consulting firms: 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.
#	Company	Headquarters	Employees	Contacts
1	Scis SecurityStrong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	59
	“Accredited and Veteran Owned and Operated •Cyber Security \| MSSP Security Operations Center, CISO Advisory, Penetration Testing, Incident Response DFIR), and IT Security…” Source: company website · checked Sep 4, 2026
2	QuantavenuesStrong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	n/a	53
	“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: company website · checked Sep 4, 2026
3	Alliant CybersecurityIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	24
	“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: company website · checked Sep 4, 2026
4	Neorhino IT SolutionsIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	22
	“Born in 1998 during the dot-com bubble, neoRhino has evolved into a leading, innovative provider of business technology solutions.” Source: company website · checked Sep 4, 2026
5	SET Solutions, A Trace3 CompanyPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	21
	“Set Solutions delivers advanced Cybersecurity consulting, solution integration and procurement solutions tailored to Commercial, Enterprise, Government and Educational customers.” Source: company website · checked Sep 4, 2026
6	Kulkan SecurityPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	20
	“Kulkan Security - Creative minds breaking your Apps.” Source: company website · checked Sep 4, 2026
7	Enstep Technology SolutionsPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	19
	“Enstep Technology Solutions \| IT That Works for You At Enstep Technology Solutions, we go beyond traditional IT support-we are your strategic technology partner, helping…” Source: company website · checked Sep 4, 2026
8	ThinopsPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	17
	“ThinOps provides technology consulting services around architecture, implementation, migrations, maintenance, or managed services for enterprise deployments particularly…” Source: company website · checked Sep 4, 2026
9	K3des LLCPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	15
	“K3DES is one of the top ten Payment Card Industry consulting firms in the US.” Source: company website · checked Sep 4, 2026
10	TK ConsultantsStrong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	14
	“About TK We are an SAP Security & Compliance Consulting and Technical Staffing firm that specializes in a wide variety of Engineering Recruiting ranging from Civil, Oil & Gas…” Source: company website · checked Sep 4, 2026
11	Santcore TechnologiesStrong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	14
	“Santcore Technologies is a multidisciplinary IT consulting and solutions firm specializing in cybersecurity, GRC, cloud architecture, application security, digital transformation…” Source: company website · checked Sep 4, 2026
12	Ikon TechPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	14
	“Ikon Tech is a highly regarded cybersecurity and IT infrastructure management company that provides comprehensive solutions to businesses of all sizes as they strive for digital…” Source: company website · checked Sep 4, 2026
13	IntelosPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	11
	“At Intelos, we drive meaningful change, revolutionizing business capabilities through high-quality IT services.” Source: company website · checked Sep 4, 2026
14	Ngnsys, LLCPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	9
	“NGNSYS (Next Generation Network Systems) is an advanced technology consulting firm specializing in cybersecurity, managed services, data center designs (Arista and Cisco Nexus…” Source: company website · checked Sep 4, 2026
15	Swailes & Company, INCStrong evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	9
	“Swailes & Company is a licensed investigative and security consulting company headquartered in Houston, Texas.” Source: company website · checked Sep 4, 2026
16	Anuva LabsIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	9
	“Anuva Labs, Your AI Transformation Partner At Anuva Labs, we believe every organization deserves a clear, confident path into the AI era.” Source: company website · checked Sep 4, 2026
17	TriumphusPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	51-200	8
	“Delivering Predictable IT - Because you shouldn't have to worry about your IT environment.” Source: company website · checked Sep 4, 2026
18	DaakyiIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	8
	“DAAKYI is a cybersecurity, digital trust, and infrastructure innovation company built to secure the modern digital economy.” Source: company website · checked Sep 4, 2026
19	Triad InfosecIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	1-10	8
	“In a world where cyber threats never sleep, Triad InfoSec delivers battle-tested solutions built on decades of real-world defense and military precision.” Source: company website · checked Sep 4, 2026
20	Revelsec, A Dataprise CompanyIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	7
	“RevelSec, a Dataprise company, provides a full-suite of solutions and services.” Source: company website · checked Sep 4, 2026
21	H5 Strategic AlliancesIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	1-10	7
	“H5 Strategic Alliances seeks to defend an organization’s infrastructure against cybersecurity threats and vulnerabilities.” Source: company website · checked Sep 4, 2026
22	Erascogroup, LLCPartial evidence	Houston, United StatesHQ checked Sep 4, 2026	1-10	7
	“ErascoGroup are highly experienced security experts from multiple industries and back grounds.” Source: company website · checked Sep 4, 2026
23	High Standards Technology, INCIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	11-50	7
	“Our mission is simple:"Be the Best of the Best".” Source: company website · checked Sep 4, 2026
24	Fortify ExpertsIndirect evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	1-10	7
	“FORTIFY EXPERTS: Best on the Planet Cybersecurity Search and Solutions.” Source: company website · checked Sep 4, 2026
25	CitsapPartial evidence	Houston, TX, United StatesHQ checked Sep 4, 2026	1-10	6
	“CITSAP specializes in providing Cybersecurity Governance, Risk Management, Compliance (GRC), Fractional CISO services, and outsourced/co-sourced Internal IT Audit services to…” Source: company website · checked Sep 4, 2026

Showing 25 of 148 IT security consulting firms based in Houston, United States

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IT security consulting firms based in Houston, United States at a glance

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 239 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

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 Houston, over 148 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 IT security consulting firms, 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 Houston, United States whose own description of what they do matches “IT security consulting firms”. 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 IT security consulting firms, 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 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, 322 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 4, 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.

IT security consulting firms by metro in the United States

Frequently asked

How many IT security consulting firms are there based in Houston, United States?

RevenueBase identified 148 IT security consulting firms 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?

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

Which city has the most IT security consulting firms?

New York leads with 239 headquartered companies, followed by Houston (148) and Atlanta (139).

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 322 verified decision-maker contacts tracked across these 148 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 4, 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.