Company lists · Data refreshed September 2026

Top 25 Water infrastructure companies based in the United States

Name: Water infrastructure companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,330 companies tracked

RevenueBase identified 1,330 water infrastructure companies headquartered in the United States as of September 2026 and tracks 45,261 professional contacts across them, including 18,277 with verified work emails. Houston is the largest hub.

This list covers water infrastructure companies headquartered in the United States, 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 22, 2026.

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 22, 2026 86% judged on-target in blind review

1,330Companies

45,261Contacts tracked

18,277Verified emails

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The 25 largest water infrastructure companies based in the United States

Ranked by team size

Top 25 of 1,330 water infrastructure companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to water infrastructure companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	American Water	Partial evidence	Camden, NJ, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,876 contacts →
	Partial evidence “American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
2	Watts Water Technologies	Partial evidence	North Andover, MA, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,503 contacts →
	Partial evidence “We are a global leader of quality water solutions for residential, industrial, municipal, and commercial settings.” Source: RevenueBase Database · checked Sep 22, 2026
3	Core & Main	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	2,165 contacts →
	Indirect evidence “Based in St.” Source: RevenueBase Database · checked Sep 22, 2026
4	Carollo Engineers	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,718 contacts →
	Partial evidence “For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Source: RevenueBase Database · checked Sep 22, 2026
5	AQUA	Partial evidence	Bryn Mawr, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,478 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
6	EJ	Partial evidence	East Jordan, MI, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,246 contacts →
	Partial evidence “EJ is the global leader in the design, manufacture, and distribution of access solutions for the world’s growing infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
7	Garney Construction	Partial evidence	North Kansas City, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,009 contacts →
	Partial evidence “Garney Construction is a national leader in water and wastewater construction.” Source: RevenueBase Database · checked Sep 22, 2026
8	Miller Pipeline	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 22, 2026	1,001-5,000	974 contacts →
	Partial evidence “Miller Pipeline is the single-source, premier provider for all underground construction system solutions in transmission, distribution, and water/wastewater management.” Source: RevenueBase Database · checked Sep 22, 2026
9	Inframark	Strong evidence	Horsham, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	973 contacts →
	Strong evidence “As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.” Source: RevenueBase Database · checked Sep 22, 2026
10	MEADE	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 22, 2026	1,001-5,000	594 contacts →
	Indirect evidence “Meade leads the field in design, construction and maintenance of electric, natural gas, and telecommunications delivery systems, both above and below ground and has done so for…” Source: RevenueBase Database · checked Sep 22, 2026
11	Mastec Utility Services	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 22, 2026	1,001-5,000	562 contacts →
	Partial evidence “WE'RE HIRING FOR POWER, GAS, & INFRASTRUCTURE ROLES ACROSS THE COUNTRY!* Join the Team That Keeps Energy and Infrastructure Moving Forward.” Source: RevenueBase Database · checked Sep 22, 2026
12	Westech Engineering	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 22, 2026	501-1,000	554 contacts →
	Partial evidence “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
13	Rockwater Energy Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	519 contacts →
	Indirect evidence “Rockwater is now Select Chemistry.” Source: RevenueBase Database · checked Sep 22, 2026
14	MWH	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 22, 2026	501-1,000	428 contacts →
	Indirect evidence “As a leading U.S.” Source: RevenueBase Database · checked Sep 22, 2026
15	UCC Environmental	Indirect evidence	Waukegan, IL, United StatesHQ checked Sep 22, 2026	201-500	389 contacts →
	Indirect evidence “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Source: RevenueBase Database · checked Sep 22, 2026
16	Parkson Corporation	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 22, 2026	51-200	317 contacts →
	Partial evidence “Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.” Source: RevenueBase Database · checked Sep 22, 2026
17	Aquarion Water Company	Partial evidence	Bridgeport, CT, United StatesHQ checked Sep 22, 2026	201-500	308 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026
18	Etna Supply	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 22, 2026	501-1,000	303 contacts →
	Partial evidence “Etna Supply is a family of companies committed to providing the essential products, expertise, and support that keep water moving and businesses running.” Source: RevenueBase Database · checked Sep 22, 2026
19	Lakeshore Global Corporation	Partial evidence	Detroit, MI, United StatesHQ checked Sep 22, 2026	201-500	280 contacts →
	Partial evidence “LGC Global delivers 100+ years of technical expertise in turnkey design-build and traditional construction, renovation and rehabilitation (including historical buildings), water…” Source: RevenueBase Database · checked Sep 22, 2026
20	Keystone Clearwater Solutions	Partial evidence	Hershey, PA, United StatesHQ checked Sep 22, 2026	501-1,000	268 contacts →
	Partial evidence “Keystone Clearwater Solutions is moving water forward with engineered solutions for safer, more efficient water transfer, water management, and environmental services.” Source: RevenueBase Database · checked Sep 22, 2026
21	J.F. Brennan Company	Indirect evidence	La Crosse, WI, United StatesHQ checked Sep 22, 2026	501-1,000	241 contacts →
	Indirect evidence “At Brennan, our people are our top priority.” Source: RevenueBase Database · checked Sep 22, 2026
22	HD Fowler Company	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 22, 2026	501-1,000	236 contacts →
	Indirect evidence “HD Fowler Company is one of the oldest and largest independent, fourth-generation family-owned distributors of waterworks, irrigation and landscape, pumps, mechanical, and…” Source: RevenueBase Database · checked Sep 22, 2026
23	PURIS	Strong evidence	The Woodlands, TX, United StatesHQ checked Sep 22, 2026	1,001-5,000	233 contacts →
	Strong evidence “PURIS provides end-to-end water infrastructure renewal solutions, specializing in environmentally sustainable trenchless pipeline rehabilitation.” Source: RevenueBase Database · checked Sep 22, 2026
24	Aqua-Aerobic Systems, INC	Indirect evidence	Loves Park, IL, United StatesHQ checked Sep 22, 2026	51-200	207 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
25	Ulliman Schutte Construction	Strong evidence	Miamisburg, OH, United StatesHQ checked Sep 22, 2026	501-1,000	196 contacts →
	Strong evidence “Ulliman Schutte is a national leader in providing water infrastructure in the United States.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water infrastructure companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names water infrastructure companies.
Partial evidence: Its own public description names part of water infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water infrastructure companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,330 water infrastructure companies based in the United States

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Water infrastructure companies based in the United States at a glance

As of Sep 22, 2026

40.4%Verified-email coverage

34.0Average contacts per company

11-50Median size (employees)

2.4%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

415

11-50

497

51-200

280

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,330 companies.

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 water infrastructure companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “water infrastructure companies”. 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 water infrastructure companies), 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 water infrastructure companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 18,277 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 22, 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.

Water infrastructure companies by metro

Water infrastructure companies in Houston32

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 water infrastructure companies, 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 water infrastructure companies are there based in the United States?

RevenueBase identified 1,330 water infrastructure companies headquartered in the United States 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?

American Water, headquartered in Camden, tops this list with the largest team on record.

Which city has the most water infrastructure companies?

Houston leads with 32 headquartered companies, followed by Phoenix (17) and Charlotte (10).

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 18,277 verified decision-maker contacts tracked across these 1,330 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 22, 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.