Company lists · Data refreshed September 2026

Top 25 Cybersecurity and physical security integrators based in the United States

RevenueBase identified 3,857 cybersecurity and physical security integrators headquartered in the United States as of September 2026 and tracks 85,936 professional contacts across them, including 32,381 with verified work emails. New York is the largest hub.

This list covers cybersecurity and physical security integrators headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review
3,857Companies
85,936Contacts tracked
32,381Verified emails
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The 25 largest cybersecurity and physical security integrators based in the United States

Ranked by team size
Top 25 of 3,857 cybersecurity and physical security integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity and physical security integrators: 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
1Partial evidenceHoffman Estates, IL, United StatesHQ checked Sep 28, 202610001+5,707 contacts →

Partial evidence

“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceTysons, VA, United StatesHQ checked Sep 28, 20265,001-10,0002,761 contacts →

Indirect evidence

“M.C.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSan Mateo, CA, United StatesHQ checked Sep 28, 20261,001-5,0002,683 contacts →

Indirect evidence

“Transforming how organizations protect people and places.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 2026n/a2,678 contacts →

Indirect evidence

“Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLeawood, KS, United StatesHQ checked Sep 28, 20261,001-5,0002,222 contacts →

Indirect evidence

“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceRomeoville, IL, United StatesHQ checked Sep 28, 20261,001-5,0001,406 contacts →

Partial evidence

“As of May 2016, Protection 1 and ADT merged together to become the leading company in the electronic security industry.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 20261,001-5,0001,252 contacts →

Partial evidence

“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceWest Palm Beach, FL, United StatesHQ checked Sep 28, 2026501-1,000849 contacts →

Partial evidence

“Security 101® is a nationwide leader in designing, installing, and maintaining advanced security systems tailored to the unique needs of organizations of all sizes.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceUniontown, OH, United StatesHQ checked Sep 28, 202610001+839 contacts →

Partial evidence

“Securitas knows Security.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000725 contacts →

Partial evidence

“Claroty has redefined cyber-physical systems (CPS) protection with an unrivaled industry-centric platform built to secure mission-critical infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceMilpitas, CA, United StatesHQ checked Sep 28, 20261,001-5,000676 contacts →

Indirect evidence

“We are now officially Trellix!”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidencePlano, TX, United StatesHQ checked Sep 28, 2026501-1,000641 contacts →

Partial evidence

“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceAshburn, VA, United StatesHQ checked Sep 28, 2026501-1,000629 contacts →

Partial evidence

“Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceSt Louis, MO, United StatesHQ checked Sep 28, 2026501-1,000569 contacts →

Partial evidence

“Interface Systems combines AI-powered technologies with expert remote video monitoring from its US-based Interactive Security Operations Centers (iSOCs).”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceChantilly, VA, United StatesHQ checked Sep 28, 20261,001-5,000558 contacts →

Partial evidence

“Pavion Connects and Protects by providing Fire, Security, and Integration solutions to customers.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceBethesda, MD, United StatesHQ checked Sep 28, 2026501-1,000541 contacts →

Strong evidence

“Brivo is the global leader in cloud-native physical security, with more than 2 million devices deployed across locations in 80 countries.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceMclean, VA, United StatesHQ checked Sep 28, 2026501-1,000523 contacts →

Partial evidence

“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceRed Bank, NJ, United StatesHQ checked Sep 28, 20261,001-5,000416 contacts →

Partial evidence

“United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceFresno, CA, United StatesHQ checked Sep 28, 2026501-1,000378 contacts →

Partial evidence

“Pelco, a global leader in security hardware, engineers devices that help set a new standard for security, safety and operational efficiency.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026201-500375 contacts →

Indirect evidence

“We protect the world’s critical infrastructure from cyber threats.”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidencePittsford, NY, United StatesHQ checked Sep 28, 2026201-500362 contacts →

Strong evidence

“LenelS2 is a global leader in advanced physical security solutions, including access control, video surveillance and mobile credentialing.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLorton, VA, United StatesHQ checked Sep 28, 2026201-500355 contacts →

Indirect evidence

“NJVC® provides customers with innovative solutions to critical mission, business and technology challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceDenver, CO, United StatesHQ checked Sep 28, 2026501-1,000352 contacts →

Strong evidence

“LINX is a technology integrator specializing in the design, installation and support of network cabling, multimedia, security and wireless systems.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceBethel, CT, United StatesHQ checked Sep 28, 2026201-500343 contacts →

Partial evidence

“ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 2026201-500329 contacts →

Partial evidence

“Moving security forward-intelligently, confidently, together.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,857 cybersecurity and physical security integrators based in the United States

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Cybersecurity and physical security integrators based in the United States at a glance

As of Sep 28, 2026
37.7%Verified-email coverage
22.3Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,691
11-50
1,523
51-200
462
201-500
101
501-1,000
32
1,001-5,000
29
5,001-10,000
4
10001+
6

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,857 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 cybersecurity and physical security integrators, 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 the United States whose own description of what they do matches “cybersecurity and physical security integrators”. 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 cybersecurity and physical security integrators), 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 cybersecurity and physical security integrators, and records with no verified work email. Companies headquartered outside United States 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, 32,381 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 28, 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

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 cybersecurity and physical security integrators, 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 cybersecurity and physical security integrators are there based in the United States?

RevenueBase identified 3,857 cybersecurity and physical security integrators headquartered in the 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?

Convergint, headquartered in Hoffman Estates, tops this list with the largest team on record.

Which city has the most cybersecurity and physical security integrators?

New York leads with 89 headquartered companies, followed by Houston (71) and Atlanta (59).

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 32,381 verified decision-maker contacts tracked across these 3,857 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 28, 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.