Company lists · Data refreshed September 2026

Top 16 Network security installers based in New York, United States

RevenueBase identified 59 network security installers headquartered in New York, United States as of September 2026 and tracks 429 professional contacts across them, including 91 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers network security installers 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 29, 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 29, 2026 86% judged on-target in blind review
59Companies
429Contacts tracked
91Verified emails
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The 16 largest network security installers based in New York, United States

Ranked by team size
Top 16 of 59 network security installers based in New York, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to network security installers: 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 29, 202611-5072 contacts →

Partial 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 29, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-20065 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-20055 contacts →

Partial evidence

“Port53 Technologies is The Global Leader in Cisco-Based Managed Security Operations, helping organizations modernize and secure their digital environments through advanced…”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“Techgardens is a systems integrator founded in 2009 and based in New York.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20261-109 contacts →

Partial evidence

“Our primary business is the digital security of your assets.”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-506 contacts →

Strong evidence

“Krantz Secure Technologies is one of the New York metropolitan area’s oldest and most trusted network and security services integrators.”

Source: RevenueBase Database · checked Sep 29, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 20261-106 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-505 contacts →

Partial 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 29, 2026
10Partial evidenceNew York, United StatesHQ checked Sep 29, 202611-504 contacts →

Partial evidence

“Velstadt is a cybersecurity provider focused on delivering both offensive and defensive security services.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“At Orbit Security Systems, we work tirelessly toward providing New York City with the best, most reliable security products at affordable prices.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceNew York, United StatesHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“At Jate Inc, we specialize in low voltage contracting and integrated security solutions that support safe, connected commercial spaces.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-5002 contacts →

Indirect evidence

“Yama Industrials Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“The NY Locksmith is a NYC based locksmith and security systems company.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-501 contacts →

Partial evidence

“Founded in 5K Security Systems offers low voltage structured cabling, voice and data, video/audio distribution, and security systems solutions to many businesses in diverse…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“At Cyvergence, our mission is to empower organizations by delivering state of the art cybersecurity products and services that fortify your digital ecosystem.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 16 of 59 network security installers based in New York, United States

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Network security installers based in New York, United States at a glance

As of Sep 29, 2026
21.2%Verified-email coverage
7.3Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
19
51-200
7
201-500
3
501-1,000
1

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 59 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 network security installers, 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 “network security installers”. 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 network security installers), 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 network security installers, 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, 91 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 29, 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 network security installers, 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 network security installers are there based in New York, United States?

RevenueBase identified 59 network security installers 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?

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

Which city in the United States has the most network security installers?

New York leads the United States with 59 headquartered companies, followed by Houston (50) and Dallas (40).

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 91 verified decision-maker contacts tracked across these 59 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 29, 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.