Company lists · Data refreshed November 2026

Top 25 Emergency notification system companies worldwide

RevenueBase identified 452 company matches for emergency notification system companies worldwide as of November 2026 and tracks 7,423 professional contacts across them, including 2,616 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for emergency notification system companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for emergency notification system companies follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
452Companies
7,423Contacts tracked
2,616Verified emails
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The 25 largest emergency notification system companies worldwide

Ranked by team size
Top 25 of 452 company matches for emergency notification system companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChester, CT, United StatesHQ recorded Nov 6, 20261,001-5,000811 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLongmont, CO, United StatesHQ recorded Nov 6, 20261,001-5,000381 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 2026201-500369 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202651-200298 contacts →

Exact match

“CENTEGIX is the leader in incident response solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchCoppell, TX, United StatesHQ recorded Nov 6, 2026201-500293 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026201-500180 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMadison, WI, United StatesHQ recorded Nov 6, 202651-200178 contacts →

Exact match

“Protect.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202651-200156 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-200147 contacts →

Exact match

“Citizen is the No.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

“Regroup's award-winning, cloud-based mass notification platform is used every day by thousands of organizations to save lives, improve safety for entire communities, respond to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSamstagern, SwitzerlandHQ recorded Nov 6, 2026201-50094 contacts →

Exact match

“Swissphone stands for secure alerting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWall Township, NJ, United StatesHQ recorded Nov 6, 202611-5092 contacts →

Exact match

“911inform is the only all-encompassing emergency system that empowers first responders.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 2026201-50086 contacts →

Exact match

“Rave Mobile Safety was acquired by Motorola Solutions in 2022 and is now part of Motorola Solutions’ ecosystem of safety and security technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTX, United StatesHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“At NGA, we are on a mission to provide unmatched peace of mind, and equal access for everyone through our cutting-edge NG911 cloud-based emergency telecommunications solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWesterville, ON, United StatesHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Status Solutions is the pioneering provider of enterprise situational awareness for risk management with life safety, security, environmental monitoring and mass notification…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKosice, SlovakiaHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Telegrafia a.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWallingford, CT, United StatesHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Mutualink is a leading provider of secure, interoperable communications solutions, specializing in automated emergency response technology for public safety, government, critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWaterloo, ON, CanadaHQ recorded Nov 6, 20261,001-5,00056 contacts →

Exact match

“The BlackBerry® AtHoc® critical event management solution combines a secure emergency notification system with incident response tools and capabilities-so you can quickly deploy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“ATI Systems is a leader in the design, manufacturing and installation of world-class reliable emergency warning and mass notification systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchKirchseeon, GermanyHQ recorded Nov 6, 2026201-50054 contacts →

Exact match

“Company Profile Effective emergency management begins with carefully planned early warning and notification systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLongwood, FL, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Student and staff safety is the top priority at any educational facility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMountain View, CA, United StatesHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“CrisisGo is the premier safety and incident management platform that aligns communication across and within multiple agencies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKirkham, United KingdomHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“At Audiebant, we believe that when seconds count, communication cannot fail.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchJyväskylä, FinlandHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Secapp is a critical communication and alerting system with documentation features.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNiles, IL, United StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Jeron Electronic Systems, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 452 emergency notification system companies worldwide

See the full list, filter by size, metro and specialty, and access 2,616 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Emergency notification system companies worldwide at a glance

As of Nov 6, 2026
35.2%Verified-email coverage
16.4Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
185
11-50
195
51-200
45
201-500
17
1,001-5,000
3
10001+
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for emergency notification system companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “emergency notification system companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,616 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Emergency notification system companies by location

1 lists · largest first

Every Emergency notification system companies 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “emergency notification system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many emergency notification system companies are there worldwide?

RevenueBase identified 452 company matches for emergency notification system companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Whelen Engineering tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most emergency notification system companies?

The United States leads with 208 companies. Every emergency notification system companies list by country and city is linked on this page.

Which city has the most emergency notification system companies?

New York leads with 9 company records, followed by Chicago (5) and London (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,616 professional contacts with verified work emails tracked across these 452 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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.