Company lists · Data refreshed November 2026

Top 25 Water utility operators based in the United States

RevenueBase identified 886 company matches for water utility operators associated with the United States as of November 2026 and tracks 39,681 professional contacts across them, including 17,242 with verified work emails. Greenville is the largest hub.

This list covers company matches for water utility operators 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
886Companies
39,681Contacts tracked
17,242Verified emails
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The 25 largest water utility operators based in the United States

Ranked by team size
Top 25 of 886 company matches for water utility operators 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 matchLos Angeles, CA, United StatesHQ recorded Nov 6, 20265,001-10,0005,125 contacts →

Exact match

“The Los Angeles Department of Water and Power (LADWP), the largest municipal utility in the United States, was established more than 100 years ago to deliver reliable, safe water…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCamden, NJ, United StatesHQ recorded Nov 6, 20265,001-10,0003,062 contacts →

Exact match

“American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 20261,001-5,0001,999 contacts →

Exact match

“JEA is a community-based electric, water and sewer utility in Jacksonville, Florida, dedicated to safety, reliability and customer satisfaction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBryn Mawr, PA, United StatesHQ recorded Nov 6, 20261,001-5,0001,588 contacts →

Exact match

“Aqua is one of the largest U.S-based, publicly traded water and wastewater utilities, serving more than 3 million people in Illinois, Indiana, New Jersey, North Carolina…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOakland, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,504 contacts →

Exact match

“East Bay Municipal Utility District is a California public utility that supplies high-quality drinking water, generates renewable energy and provides wastewater treatment and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLaurel, MD, United StatesHQ recorded Nov 6, 20261,001-5,0001,263 contacts →

Exact match

“Established in 1918, WSSC Water is currently among the largest water and wastewater utilities in the nation, with a network of nearly miles of drinking water pipeline and over…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHorsham, PA, United StatesHQ recorded Nov 6, 20261,001-5,0001,107 contacts →

Exact match

“As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDenver, CO, United StatesHQ recorded Nov 6, 20261,001-5,000976 contacts →

Exact match

“Denver Water proudly serves high-quality water and promotes its efficient use to 1.5 million people in the city of Denver and many surrounding suburbs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOmaha, NE, United StatesHQ recorded Nov 6, 2026501-1,000476 contacts →

Exact match

“The mission of the Metropolitan Utilities District, headquartered in Omaha, Nebraska, is to provide safe, reliable and cost-effective natural gas and water services to our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGreenville, NC, United StatesHQ recorded Nov 6, 2026201-500443 contacts →

Exact match

“Since 1905, Greenville Utilities has been an integral part of Greenville-Pitt County, growing and progressing along with our expanding service area.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Dimas, CA, United StatesHQ recorded Nov 6, 2026501-1,000436 contacts →

Exact match

“Founded in 1929, Golden State Water Company (Golden State Water) is an investor-owned public utility that provides water service to more than 1 million customers in over 80…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLouisville, KY, United StatesHQ recorded Nov 6, 2026201-500432 contacts →

Exact match

“Every day, nearly one million people depend on Louisville Water Company to provide safe, high-quality drinking water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEugene, United StatesHQ recorded Nov 6, 2026501-1,000419 contacts →

Exact match

“Founded in 1911, we are Oregon's largest customer-owned utility.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChino, CA, United StatesHQ recorded Nov 6, 2026201-500349 contacts →

Exact match

“The Inland Empire Utilities Agency (IEUA) is a municipal water district that supplies imported and recycled water; collects and treats wastewater; and provides other utility…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500325 contacts →

Exact match

“Founded in 1866, San Jose Water is an investor owned public utility, and is one of the largest and most technically sophisticated urban water system in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBridgeport, CT, United StatesHQ recorded Nov 6, 2026201-500308 contacts →

Exact match

“Aquarion Water Company is the public water supply and wastewater treatment company for more than people in 73 cities and towns in Connecticut, Massachusetts and New Hampshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKissimmee, FL, United StatesHQ recorded Nov 6, 2026501-1,000283 contacts →

Exact match

“Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 2026201-500274 contacts →

Exact match

“The San Diego County Water Authority sustains a $262 billion regional economy and the quality of life for 3.3 million residents through a multi-decade water supply diversification…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPittsburgh, United StatesHQ recorded Nov 6, 2026201-500248 contacts →

Exact match

“ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMorrow, GA, United StatesHQ recorded Nov 6, 2026201-500242 contacts →

Exact match

“Clayton County Water Authority (CCWA) is located in metropolitan Atlanta and provides water, sewer and stormwater services to more than people through accounts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNew Haven, CT, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“The Regional Water Authority is a public water utility and environmental services company whose higher purpose is to make life better for people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLafayette, LA, United StatesHQ recorded Nov 6, 2026501-1,000183 contacts →

Exact match

“For more than 125 years, LUS has been a community partner committed to enhancing quality of life through reliable service, competitive pricing and safety.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWilmington, NC, United StatesHQ recorded Nov 6, 2026201-500177 contacts →

Exact match

“Cape Fear Public Utility Authority (CFPUA) is the consolidated public body providing water and sewer services for the residents of the City of Wilmington and New Hanover County…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHartford, CT, United StatesHQ recorded Nov 6, 2026501-1,000168 contacts →

Exact match

“The Metropolitan District (MDC) is a non-profit municipal corporation chartered by the Connecticut General Assembly in 1929 to provide potable water and sewerage services on a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIselin, DE, United StatesHQ recorded Nov 6, 2026201-500165 contacts →

Exact match

“Middlesex Water Company (NASDAQ:MSEX) provides a full range of regulated and non-regulated water, wastewater utility and related services primarily in New Jersey and Delaware.”

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

Showing 25 of 886 water utility operators based in the United States

See the full list, filter by size, metro and specialty, and access 17,242 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water utility operators based in the United States at a glance

As of Nov 6, 2026
43.5%Verified-email coverage
44.8Average contacts per company
11-50Median size (employees)
1.0%Largest-city concentration · Greenville
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
372
11-50
205
51-200
192
201-500
59
501-1,000
23
1,001-5,000
20
5,001-10,000
3
10001+
1

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 886 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 “water utility operators” 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 17,242 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 “water utility operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water utility operators are there based in the United States?

RevenueBase identified 886 company matches for water utility operators 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?

LOS Angeles Department Of Water And Power tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water utility operators?

Greenville leads with 9 company records, followed by Austin (6) and Littleton (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 17,242 professional contacts with verified work emails tracked across these 886 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.