Company lists · Data refreshed September 2026

Top 25 Water system maintenance companies based in the United States

Name: Water system maintenance 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 2,177 companies tracked

RevenueBase identified 2,177 water system maintenance companies headquartered in the United States as of September 2026 and tracks 14,577 professional contacts across them, including 4,079 with verified work emails. Houston is the largest hub.

This list covers water system maintenance 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

2,177Companies

14,577Contacts tracked

4,079Verified emails

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The 25 largest water system maintenance companies based in the United States

Ranked by team size

Top 25 of 2,177 water system maintenance 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 system maintenance 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	Hiller Plumbing, Heating, Cooling & Electrical	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 22, 2026	501-1,000	368 contacts →
	Indirect evidence “Hiller provides residential and commercial service and repair throughout Tennessee, Southern Kentucky, Northern Alabama, Southeastern Arkansas, Northeastern Mississippi, Northern…” Source: RevenueBase Database · checked Sep 22, 2026
2	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
3	Usabluebook	Strong evidence	Waukegan, IL, United StatesHQ checked Sep 22, 2026	5,001-10,000	241 contacts →
	Strong evidence “Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Source: RevenueBase Database · checked Sep 22, 2026
4	Rooter Hero Plumbing & AIR	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 22, 2026	201-500	179 contacts →
	Indirect evidence “https://linktr.ee/Rooter.Hero At Rooter Hero Plumbing, we pride ourselves on providing Competitive Pricing, Quality Work and Professional Service on every plumbing appointment.” Source: RevenueBase Database · checked Sep 22, 2026
5	Smith & Loveless INC	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 22, 2026	201-500	172 contacts →
	Partial evidence “S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Source: RevenueBase Database · checked Sep 22, 2026
6	LB Water	Partial evidence	Selinsgrove, PA, United StatesHQ checked Sep 22, 2026	201-500	147 contacts →
	Partial evidence “100% Employee Owned LB Water has been providing quality water and wastewater solutions for decades.” Source: RevenueBase Database · checked Sep 22, 2026
7	Abacus Plumbing, AIR Conditioning & Electrical	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	138 contacts →
	Indirect evidence “We offer superior plumbing, air conditioning, and electrical services to Residential and Commercial clients in Houston,TX.” Source: RevenueBase Database · checked Sep 22, 2026
8	Advanced Home Services	Indirect evidence	Rigby, ID, United StatesHQ checked Sep 22, 2026	11-50	95 contacts →
	Indirect evidence “At Advanced Home Services our goal is to provide you with Advanced plumbing and heating services that will make your life simple, convenient and comfortable.” Source: RevenueBase Database · checked Sep 22, 2026
9	Aquarius Home Services	Indirect evidence	Little Canada, MN, United StatesHQ checked Sep 22, 2026	201-500	93 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
10	USG Water Solutions	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 22, 2026	501-1,000	87 contacts →
	Strong evidence “USG Water Solutions is the leading water utility services provider specializing in storage tanks, plant rehabilitation, metering, and distribution systems.” Source: RevenueBase Database · checked Sep 22, 2026
11	Delta Mechanical, INC	Indirect evidence	Mesa, AZ, United StatesHQ checked Sep 22, 2026	51-200	80 contacts →
	Indirect evidence “For over 30 years, Delta Mechanical has been a leader in plumbing services.” Source: RevenueBase Database · checked Sep 22, 2026
12	Water & Wastewater Equipment Company	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 22, 2026	11-50	80 contacts →
	Partial evidence “Water and Wastewater Equipment Company has been providing efficient, cost-effective and compliant solutions to water and wastewater treatment applications for over 30 years.” Source: RevenueBase Database · checked Sep 22, 2026
13	Alliance Water Resources	Strong evidence	Columbia, MO, United StatesHQ checked Sep 22, 2026	201-500	78 contacts →
	Strong evidence “Headquartered in Columbia, Missouri, Alliance Water Resources is a leading provider of professional operations and maintenance services for community water and wastewater systems…” Source: RevenueBase Database · checked Sep 22, 2026
14	Dauenhauer Plumbing	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 22, 2026	51-200	77 contacts →
	Indirect evidence “Dauenhauer Plumbing is Kentucky's largest full service plumbing company, serving residential and commercial customers in both the Louisville and Lexington areas.” Source: RevenueBase Database · checked Sep 22, 2026
15	FLEET	Indirect evidence	Harrison, NY, United StatesHQ checked Sep 22, 2026	51-200	72 contacts →
	Indirect evidence “Outstanding Service for Over 50 Years Based in the New York metropolitan area but serving all of NY State, CT, and norther NJ, GA Fleet Associates serves Building Trades…” Source: RevenueBase Database · checked Sep 22, 2026
16	Sagewater	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 22, 2026	51-200	70 contacts →
	Indirect evidence “SageWater is the nation’s leading provider of turnkey plumbing and mechanical infrastructure solutions for condominium and apartment communities.” Source: RevenueBase Database · checked Sep 22, 2026
17	Demar Plumbing Corp. Demar Mechanical INC	Indirect evidence	NY, United StatesHQ checked Sep 22, 2026	201-500	67 contacts →
	Indirect evidence “Demar began as a small, family-owned company, providing plumbing services to the NYC area.” Source: RevenueBase Database · checked Sep 22, 2026
18	Hill Services	Partial evidence	Memphis, TN, United StatesHQ checked Sep 22, 2026	51-200	66 contacts →
	Partial evidence “Commercial & Industrial Facility Maintenance Services including: Plumbing, Piping, & Camera Technologies Pipe Relining, Manhole Rehabilitation HVAC, Refrigeration, Building…” Source: RevenueBase Database · checked Sep 22, 2026
19	Superior Water & AIR	Partial evidence	West Valley City, UT, United StatesHQ checked Sep 22, 2026	51-200	64 contacts →
	Partial evidence “Superior Water and Air is a family-owned company that is an industry leader in quality and customer care since 1956.” Source: RevenueBase Database · checked Sep 22, 2026
20	Rite WAY Heating, Cooling & Plumbing	Indirect evidence	Tucson, AZ, United StatesHQ checked Sep 22, 2026	201-500	62 contacts →
	Indirect evidence “Serving and Keeping Southern Arizona Cool and Comfortable since 1959 We offer you peace of mind, ensuring your HVAC and plumbing equipment operates safely.” Source: RevenueBase Database · checked Sep 22, 2026
21	PLW Waterworks	Partial evidence	The Woodlands, TX, United StatesHQ checked Sep 22, 2026	501-1,000	61 contacts →
	Partial evidence “PLW Waterworks is an innovative waterworks infrastructure construction management and general contractor serving municipalities, water districts and water authorities across Texas…” Source: RevenueBase Database · checked Sep 22, 2026
22	Haddad Plumbing & Heating INC	Indirect evidence	Newark, NJ, United StatesHQ checked Sep 22, 2026	51-200	59 contacts →
	Indirect evidence “Haddad Plumbing & Heating is one of the leading plumbing and HVAC contractors in the Tri-State Area since We provide comprehensive plumbing and HVAC services to commercial and…” Source: RevenueBase Database · checked Sep 22, 2026
23	SI Environmental, LLC	Strong evidence	Rosenberg, TX, United StatesHQ checked Sep 22, 2026	201-500	58 contacts →
	Strong evidence “Si Environmental, LLC, is a Texas-based company that leads the way in water and wastewater facility operations and maintenance.” Source: RevenueBase Database · checked Sep 22, 2026
24	Weisinger Incorporated	Indirect evidence	Willis, TX, United StatesHQ checked Sep 22, 2026	201-500	56 contacts →
	Indirect evidence “Authentic relationships are standard practice at Weisinger Incorporated.” Source: RevenueBase Database · checked Sep 22, 2026
25	Clear Creek Systems	Strong evidence	Bakersfield, CA, United StatesHQ checked Sep 22, 2026	51-200	54 contacts →
	Strong evidence “Clear Creek Systems is a leading provider of water treatment systems and services.” 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 system maintenance 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 system maintenance companies.
Partial evidence: Its own public description names part of water system maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water system maintenance 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 2,177 water system maintenance companies based in the United States

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Water system maintenance companies based in the United States at a glance

As of Sep 22, 2026

28.0%Verified-email coverage

6.7Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

1,140

11-50

773

51-200

190

201-500

501-1,000

5,001-10,000

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 2,177 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 system maintenance 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 system maintenance 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 system maintenance 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 system maintenance 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, 4,079 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.

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 system maintenance 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 system maintenance companies are there based in the United States?

RevenueBase identified 2,177 water system maintenance 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?

Hiller Plumbing, Heating, Cooling & Electrical, headquartered in Nashville, tops this list with the largest team on record.

Which city has the most water system maintenance companies?

Houston leads with 23 headquartered companies, followed by New York (18) and San Antonio (16).

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 4,079 verified decision-maker contacts tracked across these 2,177 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.