Company lists · Data refreshed September 2026

Top 21 Infrastructure protection companies based in New York, United States

RevenueBase identified 77 infrastructure protection companies headquartered in New York, United States as of September 2026 and tracks 1,261 professional contacts across them, including 308 with verified work emails. Houston is the largest hub.

This list covers infrastructure protection companies headquartered in New York, 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 20, 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 20, 2026 86% judged on-target in blind review
77Companies
1,261Contacts tracked
308Verified emails
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The 21 largest infrastructure protection companies based in New York, United States

Ranked by team size
Top 21 of 77 infrastructure protection companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure protection 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026201-500206 contacts →

Partial evidence

“Since 1969, thousands of businesses across the country have entrusted their protection to DGA Security.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000159 contacts →

Indirect evidence

“Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,000120 contacts →

Indirect evidence

“Excel Security Corp.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5072 contacts →

Indirect evidence

“ADR Security is the leading provider of electronic and physical security services to some of New York's largest residential real estate portfolios.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026201-50070 contacts →

Indirect evidence

“At GLOBAL OPS, we specialize in creating and implementing tailored security solutions that cater to the unique needs of our diverse clientele.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20065 contacts →

Partial evidence

“RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,00060 contacts →

Indirect evidence

“A&H Security Services, is a certified NYC MBE security services provider who makes a difference in our community.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5053 contacts →

Indirect evidence

“SW24 is a privately-held, premier systems integration company founded by veteran law enforcement professionals and staffed by security industry experts.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20036 contacts →

Indirect evidence

“OHZ is America’s way to secure and save.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“Target Security Systems, LLC is New York City’s leading provider of cutting edge, high security solutions customized for today’s business and private sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5020 contacts →

Indirect evidence

“Future-Ready Security for Today’s Decision-Makers.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“We help busy organizations provide maximum security with simple but sophisticated solutions which enable them to have everything under control.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceNew York, United StatesHQ checked Sep 20, 20261,001-5,00018 contacts →

Partial evidence

“We provide analysis and design of Physical Security Systems (PSS) of high risk facilities and critical infrastructure.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20017 contacts →

Partial evidence

“Cohere offers managed security and IT infrastructure services all under one roof.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“WizNucleus provides cyber & physical security solutions for mission-critical facilities, including nuclear and electric.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceNew York, United StatesHQ checked Sep 20, 20261-1013 contacts →

Indirect evidence

“At SightWatch Security, we deliver proactive and trusted security solutions-from perimeter assessments to camera installation and real-time 24/7 monitoring.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-1012 contacts →

Indirect evidence

“E-Valve Technologies is THE choice for your company's IT solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026501-1,00010 contacts →

Partial evidence

“NY Metro InfraGard Mission Statement NY Metro InfraGard & InfraGard National protects United States critical infrastructure and the American people by cultivating communications…”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“Professional Security Contractors in Commercial and Residential Smart Home Automation, IP Cameras, Access Control, Network, Voice & Data”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Rigid Security is a New York-based security systems company specializing in professional-grade solutions for businesses, nonprofits, and government organizations.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Security | Hardware | Low Voltage Solutions”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 21 of 77 infrastructure protection companies based in New York, United States

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Infrastructure protection companies based in New York, United States at a glance

As of Sep 20, 2026
24.4%Verified-email coverage
16.4Average contacts per company
11-50Median size (employees)
102.6%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
25
51-200
7
201-500
4
501-1,000
5
1,001-5,000
2

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 77 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 infrastructure protection 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 New York, United States whose own description of what they do matches “infrastructure protection 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 infrastructure protection 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 infrastructure protection companies, and records with no verified work email. Companies headquartered outside New York 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, 308 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 20, 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 infrastructure protection 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 infrastructure protection companies are there based in New York, United States?

RevenueBase identified 77 infrastructure protection companies headquartered in New York, 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?

DGA Security, headquartered in New York, tops this list with the largest team on record.

Which city has the most infrastructure protection companies?

Houston leads with 79 headquartered companies, followed by New York (77) and Miami (64).

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 308 verified decision-maker contacts tracked across these 77 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 20, 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.