Company lists · Data refreshed September 2026
Top 25 Security monitoring services based in Houston, United States
RevenueBase identified 79 security monitoring services headquartered in Houston, United States as of September 2026 and tracks 1,279 professional contacts across them, including 243 with verified work emails. New York is the largest hub.
This list covers security monitoring services 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 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.
The 25 largest security monitoring services based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | ValuementorPartial evidence | 167 | |||
“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 128 | ||||
“Bulldog Security Services is a family-owned national ADT Authorized Dealer with over a decade of industry experience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Wilson Fire Equipment & Service Co., INCIndirect evidence | 66 | |||
“Wilson Fire Equipment” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 58 | ||||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 43 | ||||
“The premier security company of Texas where customers come first.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“All Campus Security globally offers customized integrated security solutions including video surveillance, door access control, intrusion detection, fire protection, structured…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Becklar Video Remote GuardingIndirect evidence | 23 | |||
“Becklar Remote Guarding delivers cutting-edge video surveillance solutions, combining AI technology with live operator intervention to proactively prevent crime and protect assets…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 | ||||
“OMNI Fire and Security was started in 1987 to provide a locally owned option to the "big box" national firms.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Transnet Communications LLCStrong evidence | 14 | |||
“TRANSNET is a service provider for electronic security solutions as well as an IT expert that provides assessment, designs, installations, monitoring and maintenance to Security &…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 | ||||
“Integrated Security Solutions - Intelligent Video, Access Control, CCTV, Video/Intercom, Mobile & Remote Surveillance, Perimeter Detection, Monitored Security & Alarms, Biometric…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 | ||||
“We are a security solutions firm in Houston specializing in monitored video surveillance and job site security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Network BOX USAPartial evidence | 12 | |||
“We are your 24x7x365 Managed Security Service Provider (MSSP).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 | ||||
“RevelSec, a Dataprise company, provides a full-suite of solutions and services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 | ||||
“H5 Strategic Alliances seeks to defend an organization’s infrastructure against cybersecurity threats and vulnerabilities.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 | ||||
“Leveraging patented technology with experience, Automated Security Integrated Solutions makes it possible for companies with recurring guard spend to reduce cost significantly by…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Lincoln Security SystemsPartial evidence | 7 | |||
“Lincoln’s security solutions help deter crime and improve police response.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Home Security Systems, INCIndirect evidence | 6 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Megasystems SecurityPartial evidence | 6 | |||
“At Megasystems Security, we do it all!” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 | ||||
“Archangel Alarm Services, LLC is a family-owned business based in Humble, Texas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 | ||||
“CyberAccord: Leading Managed Cybersecurity Services for Enterprises CyberAccord is a leading managed cybersecurity services provider that offers full-service solutions to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 79 security monitoring services based in Houston, United States
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Security monitoring services based in Houston, United States at a glance
As of Sep 6, 2026Companies by employee count
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 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 monitoring services, 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 “security monitoring services”. 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 monitoring services, 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, 243 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.
Security monitoring services by metro in the United States
- Security monitoring services in New York116
- Security monitoring services in Miami82
- Security monitoring services in Houston79
- Security monitoring services in Dallas63
- Security monitoring services in Los Angeles58
- Security monitoring services in Austin54
- Security monitoring services in Chicago46
- Security monitoring services in Phoenix44
- Security monitoring services in Atlanta40
- Security monitoring services in San Francisco40
- Security monitoring services in Las Vegas39
- Security monitoring services in Denver35
- Security monitoring services in Charlotte34
- Security monitoring services in San Diego33
- Security monitoring services in Tampa31
- Security monitoring services in Wilmington30
- Security monitoring services in Washington28
- Security monitoring services in Baltimore27
- Security monitoring services in Columbia27
- Security monitoring services in San Jose27
- Security monitoring services in Scottsdale25
Frequently asked
How many security monitoring services are there based in Houston, United States?
RevenueBase identified 79 security monitoring services 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?
Valuementor, headquartered in Houston, tops this list with the largest team on record.
Which city has the most security monitoring services?
New York leads with 116 headquartered companies, followed by Miami (82) and Houston (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 243 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.
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