Company lists · Data refreshed September 2026

Top 25 Emergency communication system providers worldwide

RevenueBase identified 1,040 emergency communication system providers worldwide as of September 2026 and tracks 21,628 professional contacts across them, including 7,167 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers emergency communication system providers worldwide, 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 19, 2026. Country and city lists for emergency communication system providers follow the table.

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 19, 2026 86% judged on-target in blind review
1,040Companies
21,628Contacts tracked
7,167Verified emails
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The 25 largest emergency communication system providers worldwide

Ranked by team size
Top 25 of 1,040 emergency communication system providers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to emergency communication system providers: 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 evidenceAlpharetta, GA, United StatesHQ checked Sep 19, 2026n/a2,678 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceChester, CT, United StatesHQ checked Sep 19, 20261,001-5,000762 contacts →

Indirect evidence

“Whelen Engineering is a family-owned company with a pioneering spirit and a passion to protect the lives of those who protect and serve others.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceOklahoma City, OK, United StatesHQ checked Sep 19, 2026501-1,000564 contacts →

Partial evidence

“Ford AV designs, installs, and services professional and commercial sound, audio-video, network infrastructure, and security surveillance systems for organizations including…”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceSecunderabad, IndiaHQ checked Sep 19, 202610001+421 contacts →

Partial evidence

“GVK EMRI (Emergency Management and Research Institute) is a pioneer in Emergency Management Services in India.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 19, 2026201-500406 contacts →

Indirect evidence

“Since we opened our doors in 1963, relationships have been are our strength by putting people before products.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceRedmond, WA, United StatesHQ checked Sep 19, 2026201-500371 contacts →

Partial evidence

“With more than 80 years of experience, Zetron is a critical communications technology company, providing integrated solutions with legendary reliability and support.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceVancouver, BC, CanadaHQ checked Sep 19, 2026501-1,000368 contacts →

Indirect evidence

“Through two 9-1-1 call centres, our wide-area radio network used by police, fire and ambulance personnel, and our integrated dispatch service that supports more than 70 police…”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceHorten, NorwayHQ checked Sep 19, 2026201-500360 contacts →

Partial evidence

“Zenitel is a leading provider of intelligent critical communications solutions with presence across EMEA, America’s, and APAC.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceLongmont, CO, United StatesHQ checked Sep 19, 20261,001-5,000349 contacts →

Indirect evidence

“Intrado, formerly West, is an innovative, cloud-based, global technology partner to clients around the world.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceCoppell, TX, United StatesHQ checked Sep 19, 2026201-500274 contacts →

Strong evidence

“Pioneering Life Safety Solutions Since 1989 Kings is a leading authority in emergency communication systems and monitoring services, with over three decades of dedicated…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 19, 202651-200263 contacts →

Indirect evidence

“CENTEGIX is the leader in incident response solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceWest Jordan, UT, United StatesHQ checked Sep 19, 202651-200243 contacts →

Partial evidence

“Educators need tools they can use every day to improve teaching, campus communication, and safety, while enriching student learning.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceSlough, United KingdomHQ checked Sep 19, 202610001+229 contacts →

Indirect evidence

“Airwave was acquired by Motorola Solutions in 2016.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceStafford, TX, United StatesHQ checked Sep 19, 2026501-1,000221 contacts →

Indirect evidence

“With over 200 years of combined experience, the experts at FireTron, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceDes Moines, IA, United StatesHQ checked Sep 19, 202651-200207 contacts →

Partial evidence

“Since 1946, Electronic Engineering has been the electronics and communication specialist people depend on.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceNewburgh, IN, United StatesHQ checked Sep 19, 2026201-500206 contacts →

Partial evidence

“South Western Communications, SWC, has been an innovative leader in the electronics and communication technology industry since 1976.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceBrussels, BelgiumHQ checked Sep 19, 202651-200183 contacts →

Partial evidence

“ASTRID is a specialised operator that provides the development, management and maintenance of a high technology mobile radio communications network for voice and data transmission.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceSan Diego, CA, United StatesHQ checked Sep 19, 2026201-500179 contacts →

Partial evidence

“Genasys is the global leader in Protective Communications Solutions that ensure private organizations and public safety agencies are “Ready when it matters.” Genasys solutions…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 19, 202651-200168 contacts →

Indirect evidence

“Alertus - Redefining Mass Notification for 20+ Years Our Mission is to enable organizations to disseminate information to help protect lives, secure assets, and maintain business…”

Source: RevenueBase Database · checked Sep 19, 2026
20Strong evidenceRoanoke, VA, United StatesHQ checked Sep 19, 202651-200167 contacts →

Strong evidence

“Valcom develops IP-based paging, intercom, and emergency notification systems that deliver reliable, real-time communication.”

Source: RevenueBase Database · checked Sep 19, 2026
21Strong evidenceEnnis, TX, United StatesHQ checked Sep 19, 2026201-500161 contacts →

Strong evidence

“AtlasIED manufactures next generation communication systems and commercial audio/video products that Protect, Inform, and Entertain within the education, transportation…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceSalzburg, AustriaHQ checked Sep 19, 2026201-500154 contacts →

Partial evidence

“At Commend we are passionate about innovating and perfecting trusted communication and reliable security technology.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceIrvine, CA, United StatesHQ checked Sep 19, 202651-200147 contacts →

Partial evidence

“Pyro-Comm Systems was founded in Huntington Beach, CA in 1980 and quickly became one of the premier fire alarm companies in Southern California.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceFort Wayne, IN, United StatesHQ checked Sep 19, 202651-200145 contacts →

Partial evidence

“INDIGITAL is a research and development company specializing in high availability 911 and supporting public safety systems.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceSt. Augustine, FL, United StatesHQ checked Sep 19, 202611-50138 contacts →

Indirect evidence

“AK Associates is a full service PSAP provider.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,040 emergency communication system providers worldwide

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Emergency communication system providers worldwide at a glance

As of Sep 19, 2026
33.1%Verified-email coverage
20.8Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
381
11-50
420
51-200
180
201-500
35
501-1,000
7
1,001-5,000
3
5,001-10,000
2
10001+
5

Email recency is reported on each country list linked below.

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 emergency communication system providers, 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.
Coverage
Every country. Country and city lists for emergency communication system providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “emergency communication system providers”. 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 emergency communication system providers), 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 emergency communication system providers, and records with no verified work email.
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, 7,167 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 19, 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.

Emergency communication system providers by location

6 lists · largest first

Every Emergency communication system providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 emergency communication system providers, 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 emergency communication system providers are there worldwide?

RevenueBase identified 1,040 emergency communication system providers worldwide 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?

Automated Systems Design, INC, headquartered in Alpharetta, tops this list with the largest team on record.

Which country has the most emergency communication system providers?

The United States leads with 473 companies, followed by Germany (69) and the United Kingdom (55). Every emergency communication system providers list by country and city is linked on this page.

Which city has the most emergency communication system providers?

Houston leads with 9 headquartered companies, followed by New York (9) and London (6).

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 7,167 verified decision-maker contacts tracked across these 1,040 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 19, 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.