Company lists · Data refreshed September 2026

Top 25 Industrial water systems integrators based in Houston, United States

RevenueBase identified 63 industrial water systems integrators headquartered in Houston, United States as of September 2026 and tracks 1,784 professional contacts across them, including 729 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers industrial water systems integrators headquartered in Houston, 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 28, 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 28, 2026 86% judged on-target in blind review
63Companies
1,784Contacts tracked
729Verified emails
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The 25 largest industrial water systems integrators based in Houston, United States

Ranked by team size
Top 25 of 63 industrial water systems integrators based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial water systems integrators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 2026501-1,000552 contacts →

Partial evidence

“Our expertise encompasses the full spectrum of system technologies from pneumatic - hydraulic control systems to state of the art programmable solutions to chemical injection…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026201-500209 contacts →

Indirect evidence

“Relevant Solutions is the preferred provider of process equipment solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-200106 contacts →

Strong evidence

“Integration objects is a world-leading systems integrator and solutions provider specialized in operations and manufacturing intelligence, advanced analytics, preventive detection…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5087 contacts →

Partial evidence

“We have earned a reputation as a global leader in Design/Build & Systems Integration for more than 30 years.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-20056 contacts →

Partial evidence

“Founded in 1970 and based in Houston, Texas, AUC Group has redefined water and wastewater treatment with unmatched flexibility in project timelines, financing, equipment, and…”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-20051 contacts →

Partial evidence

“Cougar USA | Water Control Solutions for High Performance Buildings.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-20045 contacts →

Partial evidence

“Every day, Headworks International devotes its considerable resources to meet the world’s demand for our most precious resource: clean water.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5044 contacts →

Indirect evidence

“ProSep is the industry-leading technology and services provider of choice for integrated process solutions to the global energy industry.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5042 contacts →

Strong evidence

“As a technology leader and master systems integrator, Convergentz integrates IT and traditional building system functions to improve Building Performance, Environmental Comfort…”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5040 contacts →

Strong evidence

“Parijat Controlware Inc.(Parijat or PCI) is a controls systems integrator since 1989, has been a strong player in the controls, automation industry.”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 2026201-50036 contacts →

Strong evidence

“Athlon, a Halliburton Service, provides specialty water and process treatment chemicals, customized engineering solutions, and services to the industrial sector, including the…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5030 contacts →

Partial evidence

“Your Avenue to Water & Wastewater Solutions!”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceHouston, United StatesHQ checked Sep 28, 202611-5025 contacts →

Partial evidence

“Water Standard, a global leader in water treatment, is committed to providing innovative solutions for the energy industry’s water challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5025 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-20024 contacts →

Indirect evidence

“Our customers can rely on Aqua Terra’s management team which has over 85 years of disposal expertise so they can focus on their core business functions – oil and gas exploration…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5023 contacts →

Partial evidence

“Established in 1993, Mex-Quip is a company with over 20 years’ experience in the distribution, packaging, installation, commissioning, and maintenance of industrial fluid handling…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-20018 contacts →

Indirect evidence

“Process Solutions International supports all aspects of liquid and solids treatment processes ranging from environmental remediation, oilfield drilling operations and uranium…”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5015 contacts →

Partial evidence

“Our solutions allow our clients to recycle and reuse water, improve operational efficiencies and reduce their environmental footprints.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“Blackbuck Resources (BBR) Designs, Builds, and Operates Water Infrastructure and Provides Services for the oil and gas industry.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“Headquartered in Houston, TX Expansa Inc builds on a rich tradition of commitment of providing premium water treatment services at a great value to our customers.”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 20261-108 contacts →

Strong evidence

“We invest our capital to design and construct cutting edge water supply systems that substantially reduce our clients’ costs by delivering low-cost alternative water instead of…”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 20261-108 contacts →

Partial evidence

“Kalluri Group, Inc.(KGI) is a consulting engineering company specializing in the design of Water and Wastewater Treatment Plants for refineries, petrochemical plants…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Elinca Electronic Corporation was founded in 2009 in the city of Katy Texas, with the aim of developing commercial activities for the local and national market, in the field of…”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 202611-506 contacts →

Strong evidence

“Hydrus Works helps energy and industrial facilities optimize their utility systems that underpin reliable operations.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“Smart Pump Solutions, LLC.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 63 industrial water systems integrators based in Houston, United States

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Industrial water systems integrators based in Houston, United States at a glance

As of Sep 28, 2026
40.9%Verified-email coverage
28.3Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
21
51-200
13
201-500
4
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 63 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 industrial water systems integrators, 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 Houston, United States whose own description of what they do matches “industrial water systems integrators”. 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 industrial water systems integrators), 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 industrial water systems integrators, and records with no verified work email. Companies headquartered outside Houston 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, 729 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 28, 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 industrial water systems integrators, 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 industrial water systems integrators are there based in Houston, United States?

RevenueBase identified 63 industrial water systems integrators headquartered in Houston, 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?

W-Industries, headquartered in Houston, tops this list with the largest team on record.

Which city in the United States has the most industrial water systems integrators?

Houston leads the United States with 63 headquartered companies, followed by Phoenix (21) and Indianapolis (19).

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 729 verified decision-maker contacts tracked across these 63 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 28, 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.