Company lists · Data refreshed October 2026

Top 25 Chemical treatment facility contractors based in the United States

RevenueBase identified 2,334 company matches for chemical treatment facility contractors associated with the United States as of October 2026 and tracks 101,324 professional contacts across them, including 32,650 with verified work emails. Houston is the largest hub.

This list covers company matches for chemical treatment facility contractors 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 October 9, 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 Oct 9, 2026 How this list was built
2,334Companies
101,324Contacts tracked
32,650Verified emails
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The 25 largest chemical treatment facility contractors based in the United States

Ranked by team size
Top 25 of 2,334 company matches for chemical treatment facility contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 matchBoston, MA, United StatesHQ recorded Oct 9, 20265,001-10,0007,832 contacts →

Exact match

“CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchSan Antonio, TX, United StatesHQ recorded Oct 9, 202610001+7,053 contacts →

Exact match

“Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchWilmington, DE, United StatesHQ recorded Oct 9, 202610001+6,565 contacts →

Exact match

“Solenis is a leading global provider of water and hygiene solutions.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 9, 20261,001-5,0002,510 contacts →

Exact match

“Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 9, 20265,001-10,0001,969 contacts →

Exact match

“Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 9, 20261,001-5,0001,811 contacts →

Exact match

“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchGainesville, TX, United StatesHQ recorded Oct 9, 20261,001-5,0001,671 contacts →

Exact match

“Select is a leader in water management and chemical technology to our customers in the oil and gas industry, as well as in other industrial applications.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchGlen Allen, VA, United StatesHQ recorded Oct 9, 20261,001-5,0001,475 contacts →

Exact match

“At ChemTreat, we understand that water is a vital resource for our planet.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 9, 202610001+1,416 contacts →

Exact match

“As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchSpring, TX, United StatesHQ recorded Oct 9, 20261,001-5,0001,212 contacts →

Exact match

“Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchHorsham, PA, United StatesHQ recorded Oct 9, 20261,001-5,0001,053 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 · Oct 9, 2026 · View company records in RevenueBase
12Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 9, 20261,001-5,0001,036 contacts →

Exact match

“EXCEL is a leading provider of industrial construction services, including maintenance, turnarounds, fabrication, and disaster recovery.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchCanonsburg, PA, United StatesHQ recorded Oct 9, 2026501-1,000968 contacts →

Exact match

“Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchSharonville, OH, United StatesHQ recorded Oct 9, 20261,001-5,000932 contacts →

Exact match

“DuBois has been serving customers since 1920.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchLa Porte, TX, United StatesHQ recorded Oct 9, 20261,001-5,000911 contacts →

Exact match

“Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchWilmington, DE, United StatesHQ recorded Oct 9, 202610001+901 contacts →

Exact match

“Chem-Aqua is a unique combination of knowledge, experience and stability.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchWestminster, CO, United StatesHQ recorded Oct 9, 20261,001-5,000730 contacts →

Exact match

“Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 9, 20261,001-5,000725 contacts →

Exact match

“WYATT is recognized for executing complex maintenance, outage, turnaround, and capital construction projects across the Oil, Gas & Chemical, and Power markets.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchAddison, TX, United StatesHQ recorded Oct 9, 20261,001-5,000692 contacts →

Exact match

“CECO Environmental is a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment across the globe…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchDeer Park, TX, United StatesHQ recorded Oct 9, 20261,001-5,000678 contacts →

Exact match

“USA DeBusk serves the industrial infrastructure sector through a diverse and complementary suite of high-value traditional and specialty services for turnarounds, routine…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 9, 20261,001-5,000621 contacts →

Exact match

“The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchMayfield Hts, OH, United StatesHQ recorded Oct 9, 2026501-1,000604 contacts →

Exact match

“State Industrial Products brings you the chemical products and maintenance solutions needed to keep the building operating at its peak.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchRaleigh, NC, United StatesHQ recorded Oct 9, 20261,001-5,000591 contacts →

Exact match

“Since 1962, Southern Industrial Constructors, Inc.(SIC) has been safely and cost effectively providing industrial construction services to the manufacturing, process and power…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchSalt Lake City, UT, United StatesHQ recorded Oct 9, 2026501-1,000577 contacts →

Exact match

“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchIrvine, CA, United StatesHQ recorded Oct 9, 20261,001-5,000535 contacts →

Exact match

“ARB Inc.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 2,334 chemical treatment facility contractors based in the United States

See the full list, filter by size, metro and specialty, and access 32,650 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Chemical treatment facility contractors based in the United States at a glance

As of Oct 9, 2026
32.2%Verified-email coverage
43.4Average contacts per company
11-50Median size (employees)
3.5%Largest-city concentration · Houston
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
738
11-50
906
51-200
450
201-500
125
501-1,000
48
1,001-5,000
43
5,001-10,000
8
10001+
8

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 2,334 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 “chemical treatment facility contractors” 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 32,650 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 October 9, 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.

Chemical treatment facility contractors by metro

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 “chemical treatment facility contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical treatment facility contractors are there based in the United States?

RevenueBase identified 2,334 company matches for chemical treatment facility contractors associated with the United States as of October 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?

CDM Smith tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most chemical treatment facility contractors?

Houston leads with 82 company records, followed by Phoenix (18) and Midland (17).

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 32,650 professional contacts with verified work emails tracked across these 2,334 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 October 9, 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.