Company lists · Data refreshed September 2026

Top 25 Water system maintenance contractors based in the United States

Name: Water system maintenance contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 755 companies tracked

RevenueBase identified 755 water system maintenance contractors headquartered in the United States as of September 2026 and tracks 6,088 professional contacts across them, including 2,070 with verified work emails. Houston is the largest hub.

This list covers water system maintenance contractors 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 19, 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 19, 2026 86% judged on-target in blind review

755Companies

6,088Contacts tracked

2,070Verified emails

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

Ranked by team size

Top 25 of 755 water system maintenance contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water system maintenance contractors: 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	Duke's	Partial evidence	Elgin, IL, United StatesHQ checked Sep 19, 2026	201-500	117 contacts →
	Partial evidence “Duke’s is a leading provider of environmental services for maintaining and improving the health of underground infrastructure for wastewater, stormwater, water, and utilities.” Source: RevenueBase Database · checked Sep 19, 2026
2	Advanced Home Services	Indirect evidence	Rigby, ID, United StatesHQ checked Sep 19, 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 19, 2026
3	USG Water Solutions	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 19, 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 19, 2026
4	Citco Water	Partial evidence	Huntington, WV, United StatesHQ checked Sep 19, 2026	51-200	84 contacts →
	Partial evidence “CITCO Water - previously The C.” Source: RevenueBase Database · checked Sep 19, 2026
5	Nor-Cal Pipeline Services	Partial evidence	Roseville, CA, United StatesHQ checked Sep 19, 2026	51-200	81 contacts →
	Partial evidence “Nor Cal is a service contractor specializing in hydro excavation, CCTV, CIPP, root control, manhole rehab, pipe jetting, lateral launch, lateral lining, tank cleaning, s.u.e.” Source: RevenueBase Database · checked Sep 19, 2026
6	Water & Wastewater Equipment Company	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 19, 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 19, 2026
7	Alliance Water Resources	Strong evidence	Columbia, MO, United StatesHQ checked Sep 19, 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 19, 2026
8	FLEET	Indirect evidence	Harrison, NY, United StatesHQ checked Sep 19, 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 19, 2026
9	Wachs Water Services	Strong evidence	Buffalo Grove, IL, United StatesHQ checked Sep 19, 2026	51-200	67 contacts →
	Strong evidence “Water Distribution Systems Solutions Wachs Water Services is the leading provider of water distribution system asset management solutions that significantly improve efficiency and…” Source: RevenueBase Database · checked Sep 19, 2026
10	Hill Services	Partial evidence	Memphis, TN, United StatesHQ checked Sep 19, 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 19, 2026
11	PLW Waterworks	Strong evidence	The Woodlands, TX, United StatesHQ checked Sep 19, 2026	501-1,000	61 contacts →
	Strong 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 19, 2026
12	SI Environmental, LLC	Strong evidence	Rosenberg, TX, United StatesHQ checked Sep 19, 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 19, 2026
13	Weisinger Incorporated	Indirect evidence	Willis, TX, United StatesHQ checked Sep 19, 2026	201-500	56 contacts →
	Indirect evidence “Authentic relationships are standard practice at Weisinger Incorporated.” Source: RevenueBase Database · checked Sep 19, 2026
14	Cougar USA	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	51 contacts →
	Partial evidence “Cougar USA \| Water Control Solutions for High Performance Buildings.” Source: RevenueBase Database · checked Sep 19, 2026
15	Pumpman	Strong evidence	Saddle Brook, NJ, United StatesHQ checked Sep 19, 2026	51-200	51 contacts →
	Strong evidence “PumpMan, a Harrington Company, is a leading provider of pump systems and on-site maintenance and repair services for commercial, industrial, and municipal market customers.” Source: RevenueBase Database · checked Sep 19, 2026
16	Shenandoah	Strong evidence	Pompano Beach, FL, United StatesHQ checked Sep 19, 2026	51-200	50 contacts →
	Strong evidence “For over 30 years we have provided comprehensive pipe inspection, maintenance and repair programs to help our customers extend the life of their existing systems and stretch every…” Source: RevenueBase Database · checked Sep 19, 2026
17	Ti-Sales	Partial evidence	Sudbury, MA, United StatesHQ checked Sep 19, 2026	11-50	47 contacts →
	Partial evidence “Ti-SALES is dedicated to having the fastest service and the most knowledgeable experts in the water and wastewater industry throughout all of New England and New York.” Source: RevenueBase Database · checked Sep 19, 2026
18	Culy Contracting	Partial evidence	Winchester, United StatesHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “Culy Contracting focuses on the water and sewer industry, along with total site preparation for municipalities, commercial, industrial, and residential customers.” Source: RevenueBase Database · checked Sep 19, 2026
19	Envirowaste Services Group	Partial evidence	Palmetto Bay, FL, United StatesHQ checked Sep 19, 2026	201-500	46 contacts →
	Partial evidence “Serving Municipalities & Utilities with Cleaning, Inspection, Maintenance, Repair, and Rehabilitation Services Across the Southeast U.S.” Source: RevenueBase Database · checked Sep 19, 2026
20	PSI Process Pumping Services, INC	Partial evidence	Middlesex, NJ, United StatesHQ checked Sep 19, 2026	51-200	44 contacts →
	Partial evidence “PSI Process is a stocking distributor and service facility for the world’s leading manufacturers of equipment used in the treatment and transfer of water, wastewater and other…” Source: RevenueBase Database · checked Sep 19, 2026
21	Santa FE Water Systems	Strong evidence	Santa Fe Springs, CA, United StatesHQ checked Sep 19, 2026	51-200	42 contacts →
	Strong evidence “Santa Fe Water Systems is a leading supplier of water infrastructure equipment, piping systems, pre-fabricated assemblies, and storm water solutions.” Source: RevenueBase Database · checked Sep 19, 2026
22	Advanced Rehabilitation Technology	Indirect evidence	Bryan, OH, United StatesHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “Advanced Rehabilitation Technology was founded to address the needs of municipal and industrial customers requiring additional repair, rehabilitation and modification on sewer and…” Source: RevenueBase Database · checked Sep 19, 2026
23	Infrastructure Alternatives, INC	Strong evidence	Rockford, MI, United StatesHQ checked Sep 19, 2026	51-200	41 contacts →
	Strong evidence “Infrastructure Alternatives, Inc.(IAI) provides contract operations, maintenance and management services for water and wastewater utilities, for municipal governments, industries…” Source: RevenueBase Database · checked Sep 19, 2026
24	Mid-Atlantic Service 360	Indirect evidence	Millstone Township, NJ, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Indirect evidence “We at Mid-Atlantic Service 360 pride ourselves on quality, reliability and competitive pricing.” Source: RevenueBase Database · checked Sep 19, 2026
25	Jaytech Water Solutions	Partial evidence	Fridley, MN, United StatesHQ checked Sep 19, 2026	11-50	38 contacts →
	Partial evidence “For over 45 years Jaytech has been delivering superior water treatment services.” Source: RevenueBase Database · checked Sep 19, 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of water system maintenance contractors, 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 contractors. 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 755 water system maintenance contractors based in the United States

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

As of Sep 19, 2026

34.0%Verified-email coverage

8.1Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

341

11-50

294

51-200

201-500

501-1,000

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 755 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 2,070 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 19, 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 contractors, 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 contractors are there based in the United States?

RevenueBase identified 755 water system maintenance contractors 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?

Duke's, headquartered in Elgin, tops this list with the largest team on record.

Which city has the most water system maintenance contractors?

Houston leads with 15 headquartered companies, followed by New York (8) and Cincinnati (7).

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 2,070 verified decision-maker contacts tracked across these 755 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 19, 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.