Company lists · Data refreshed November 2026

Top 25 Emergency calling providers based in the United States

RevenueBase identified 126 company matches for emergency calling providers associated with the United States as of November 2026 and tracks 3,626 professional contacts across them, including 1,211 with verified work emails. Atlanta is the largest hub.

This list covers company matches for emergency calling providers associated with the United States, 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.

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
126Companies
3,626Contacts tracked
1,211Verified emails
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The 25 largest emergency calling providers based in the United States

Ranked by team size
Top 25 of 126 company matches for emergency calling providers based in the United States, 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 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
2Exact 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
3Exact 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
4Exact matchTacoma, WA, United StatesHQ recorded Nov 6, 2026201-500289 contacts →

Exact match

“South Sound 911 Communications employees are highly trained professionals who collectively work to support the answering of over calls and 2,600 texts-to-911 each year and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 2026201-500187 contacts →

Exact match

“Indianapolis EMS is the largest provider of emergency pre-hospital medical care in the state, responding to over 9-1-1 calls each year.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSt Cloud, MN, United StatesHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“GeoComm was founded in 1995 to provide county governments with turnkey emergency 9-1-1 development services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSt. Augustine, FL, United StatesHQ recorded Nov 6, 202611-50138 contacts →

Exact match

“AK Associates is a full service PSAP provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAhoskie, NC, United StatesHQ recorded Nov 6, 2026201-500115 contacts →

Exact match

“MedEx is North Carolina’s largest privately owned ambulance provider, operating a fleet of over 100 ambulances statewide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Nov 6, 2026501-1,00097 contacts →

Exact match

“The Office of Emergency Management and Communications provides citizens of Chicago with prompt and reliable 911 service for police, fire and emergency medical services and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPrinceton, NJ, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Headquartered in Princeton, NJ, IXP Corporation is a private public safety emergency communication services and solutions company serving clients throughout North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCambridge, MA, United StatesHQ recorded Nov 6, 202651-20093 contacts →

Exact match

“Pro EMS has served the City of Cambridge, Massachusetts since 1969, providing 911 emergency medical services in cooperation with the Cambridge Fire, Police and Emergency…”

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 matchNorth Charleston, SC, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Mission Charleston County Emergency Medical Services (CCEMS) provides prompt, efficient, and effective emergency medical care and transportation to the citizens of and visitors to…”

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 matchBakersfield, CA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Global CTI are experts at understanding the demands placed on IT teams to ensure reliable connectivity is achieved in a fast-changing world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchExton, PA, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Uwchlan Ambulance Corps is an Emergency (911) Ambulance company located in Exton, Pennsylvania, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“The North Texas Emergency Communication Center is a 9-1-1 dispatch center that serves the cities of Carrollton, Coppell, Farmers Branch and the Town of Addison.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWest Valley City, UT, United StatesHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“The Salt Lake Valley Emergency Communications Center (VECC) is a 9-1-1 police, fire, and medical emergency services dispatch agency located in West Valley City, Utah.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCommerce City, CO, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“The Adams County Communication Center, also known as ADCOM911, is a non-profit Police and Fire/EMS Dispatch Center located in Adams County employing state of the art equipment and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWilmington, NC, United StatesHQ recorded Nov 6, 2026201-50026 contacts →

Exact match

“MedCall provides emergency and non-emergency medical care for acute illness and injury leveraging technology to immediately connect patients to Physicians Board Certified in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNiles, IL, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Talkaphone® is an emergency communications solutions expert that equips people to immediately reach first responders from places where they work, play, commute, and gather.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIrving, TX, United StatesHQ recorded Nov 6, 2026n/a22 contacts →

Exact match

“Atos Public Safety’s mission is to serve the nation’s First Responder community as its NG9-1-1 transformation partner, designing custom communication ecosystems leveraging…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHoover, AL, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Ryzyliant’s mission is to strengthen the response and effectiveness of public safety agencies of all sizes for emergency call taking, dispatching, and incident resolution while…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWalnut, CA, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“911 Secure was founded because the need for a comprehensive, affordable, easy to use Enhanced 911 solution was essential within the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMount Airy, NC, United StatesHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“For over 25 years, Synergem Technologies has pioneered the advancement of technology in the 9-1-1 industry.”

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

Showing 25 of 126 emergency calling providers based in the United States

See the full list, filter by size, metro and specialty, and access 1,211 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Emergency calling providers based in the United States at a glance

As of Nov 6, 2026
33.4%Verified-email coverage
28.8Average contacts per company
11-50Median size (employees)
3.2%Largest-city concentration · Atlanta
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
60
51-200
23
201-500
9
501-1,000
1
1,001-5,000
2
10001+
2

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 126 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “emergency calling providers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,211 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.

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 calling providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many emergency calling providers are there based in the United States?

RevenueBase identified 126 company matches for emergency calling providers associated with the United States 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?

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

Which city has the most emergency calling providers?

Atlanta leads with 4 company records, followed by Chicago (3) and Boca Raton (2).

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 1,211 professional contacts with verified work emails tracked across these 126 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.