Company lists · Data refreshed November 2026

Top 25 Backflow prevention testing services worldwide

RevenueBase identified 217 company matches for backflow prevention testing services worldwide as of November 2026 and tracks 938 professional contacts across them, including 355 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for backflow prevention testing services 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 backflow prevention testing services 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
217Companies
938Contacts tracked
355Verified emails
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The 25 largest backflow prevention testing services worldwide

Ranked by team size
Top 25 of 217 company matches for backflow prevention testing services 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 matchGilbert, AZ, United StatesHQ recorded Nov 6, 2026201-500127 contacts →

Exact match

“Metro Fire Equipment Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchTroy, MI, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“For more than four decades, HydroCorp has been dedicated to protecting piping infrastructure, ensuring safe drinking water, and supporting regulatory compliance across industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAlsip, IL, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Backflow Solutions, Inc, or BSI, is the nation’s most recognized backflow data management firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTallahassee, FL, United StatesHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“American Backflow Products Company is a master distributor of backflow preventer repair parts, testing equipment, enclosures, tools and accessories.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSpokane Valley, WA, United StatesHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Gold Seal Mechanical, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchUnited StatesHQ recorded Nov 6, 20261-1016 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“Backflows Northwest is a licensed and insured backflow test and repair company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLincoln, NE, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Nifco Mechanical Systems is a construction company based out of 500 BLUE HERON CT, LINCOLN, Nebraska, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOzone Park, NY, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Our courteous and skilled staff provides 24 hour emergency service to all 5 boroughs, Long Island & Westchester.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWauconda, AZ, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“American Backflow and Fire Prevention (ABFP) is a full service backflow, fire safety, and plumbing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNewbury Park, CA, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHarrison, OH, United StatesHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“A Professional Fire Protection company putting Customers #1.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSanta Clarita, CA, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“At Horn's Backflow & Plumbing, we specialize in delivering reliable, code-compliant backflow prevention and plumbing services for commercial and residential customers across La…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWest Palm Beach, FL, United StatesHQ recorded Nov 6, 202611-508 contacts →

Exact match

“RBK Fire Systems is growing!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Aqua Backflow and Chlorination Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchChino, CA, United StatesHQ recorded Nov 6, 202611-508 contacts →

Exact match

“HEDRICK FIRE PROTECTION is a company based out of 13309 CENTRAL AVENUE, CHINO, California, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHollywood, FL, United StatesHQ recorded Nov 6, 20261-108 contacts →

Exact match

“A1 Fire Protection LLC is a trusted, locally owned fire suppression company specializing in fire sprinkler and backflow service and inspections.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Master Distributor of Wholesale Backflow Prevention Devices & Parts Kits and supplies since 1988.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“GCS Backflow Services Inc is the premier provider of backflow test and repair services in the greater Houston, Texas, area.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchL"épiphanie, CanadaHQ recorded Nov 6, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLafayette, LA, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

“5 Star Plumbing is located in Lafayette, Louisiana.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWaxahachie, TX, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Shore fire protection is here to take care of your needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSan Martin, CA, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 217 backflow prevention testing services worldwide

See the full list, filter by size, metro and specialty, and access 355 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Backflow prevention testing services worldwide at a glance

As of Nov 6, 2026
37.8%Verified-email coverage
4.3Average contacts per company
1-10Median size (employees)
1.4%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
150
11-50
57
51-200
6
201-500
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 backflow prevention testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “backflow prevention testing services” 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 355 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.

Backflow prevention testing services by location

1 lists · largest first

Every Backflow prevention testing services 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 “backflow prevention testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many backflow prevention testing services are there worldwide?

RevenueBase identified 217 company matches for backflow prevention testing services 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?

Metro Fire And Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most backflow prevention testing services?

The United States leads with 167 companies. Every backflow prevention testing services list by country and city is linked on this page.

Which city has the most backflow prevention testing services?

New York leads with 3 company records, followed by Peoria (3) and Raleigh (3).

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 355 professional contacts with verified work emails tracked across these 217 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.