Company lists · Data refreshed October 2026

Top 25 Plumbing and water treatment contractors worldwide

Name: Plumbing and water treatment contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 14,530 companies tracked

RevenueBase identified 14,530 company matches for plumbing and water treatment contractors worldwide as of October 2026 and tracks 92,710 professional contacts across them, including 21,082 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for plumbing and water treatment contractors worldwide, 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 22, 2026. Country and city lists for plumbing and water treatment contractors follow the table.

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 22, 2026 How this list was built

14,530Companies

92,710Contacts tracked

21,082Verified emails

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The 25 largest plumbing and water treatment contractors worldwide

Ranked by team size

Top 25 of 14,530 company matches for plumbing and water treatment contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	IDE Technologies	Exact match	Kadima, IsraelHQ recorded Oct 22, 2026	501-1,000	626 contacts →
	Exact match “A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	Murphy Company	Exact match	St. Louis, MO, United StatesHQ recorded Oct 22, 2026	1,001-5,000	587 contacts →
	Exact match “Per Colorado State Law Our CO Plumbing Contractor License Our Master Plumbing License is MP.03001288.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	Selwood LTD	Exact match	Eastleigh, United KingdomHQ recorded Oct 22, 2026	501-1,000	506 contacts →
	Exact match “Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4	Horizon Services, LLC	Exact match	Wilmington, DE, United StatesHQ recorded Oct 22, 2026	501-1,000	458 contacts →
	Exact match “Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Oct 22, 2026	501-1,000	410 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	Fisia Italimpianti	Exact match	Genoa, ItalyHQ recorded Oct 22, 2026	51-200	378 contacts →
	Exact match “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7	Hiller Plumbing, Heating, Cooling & Electrical	Exact match	Nashville, TN, United StatesHQ recorded Oct 22, 2026	501-1,000	370 contacts →
	Exact match “Hiller provides residential and commercial service and repair throughout Tennessee, Southern Kentucky, Northern Alabama, Southeastern Arkansas, Northeastern Mississippi, Northern…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	United Mechanical	Exact match	San Jose, CA, United StatesHQ recorded Oct 22, 2026	201-500	349 contacts →
	Exact match “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	Enviro Infra Engineers LTD	Exact match	Delhi, IndiaHQ recorded Oct 22, 2026	501-1,000	328 contacts →
	Exact match “Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Etna Supply	Exact match	Grand Rapids, MI, United StatesHQ recorded Oct 22, 2026	501-1,000	314 contacts →
	Exact match “Etna Supply is a family of companies committed to providing the essential products, expertise, and support that keep water moving and businesses running.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	ABC Plumbing, Sewer, Heating, Cooling & Electric	Exact match	Arlington Heights, IL, United StatesHQ recorded Oct 22, 2026	201-500	281 contacts →
	Exact match “ABC Plumbing, Sewer, Heating, Cooling, and Electric has been a trusted family-owned and operated home service provider for over 70 years.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	Ticsa Grupo EPM	Exact match	Tlacoquemécatl, MexicoHQ recorded Oct 22, 2026	501-1,000	280 contacts →
	Exact match “En TICSA ofrecemos conocimiento y experiencia para crear soluciones innovadoras para el diseño, construcción, operación y mantenimiento de plantas de tratamiento de agua que den…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	Culligan By Waterco	Exact match	Lombard, IL, United StatesHQ recorded Oct 22, 2026	501-1,000	277 contacts →
	Exact match “Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	Plumber	Exact match	Three Lakes, WI, United StatesHQ recorded Oct 22, 2026	n/a	272 contacts →
	Exact match “Plumber™ exclusively serves residential and commercial plumbing contractors and franchisees providing everything from repair work and pipe rehabilitation to water conditioning and…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	EHTP	Exact match	Saint-etienne-du-grès, FranceHQ recorded Oct 22, 2026	501-1,000	266 contacts →
	Exact match “Nous maîtrisons l’ensemble des techniques du secteur de la canalisation : collecte, transport et traitement des eaux usées, renouvellement et interconnexion des conduites AEP…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	DH	Exact match	Istanbul, TürkiyeHQ recorded Oct 22, 2026	n/a	264 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Chembond Water Technologies Limited	Exact match	Navi Mumbai, IndiaHQ recorded Oct 22, 2026	201-500	249 contacts →
	Exact match “Chembond Water Technologies Limited specializes in delivering advanced water treatment solutions for industrial and institutional applications.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18	Morris-Jenkins	Exact match	Charlotte, NC, United StatesHQ recorded Oct 22, 2026	501-1,000	248 contacts →
	Exact match “Morris-Jenkins is like family!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Esli Pollet Water Group	Exact match	Antalya, TürkiyeHQ recorded Oct 22, 2026	201-500	241 contacts →
	Exact match “Esli PWG Ltd.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20	Shapiro & Duncan, INC	Exact match	Rockville, MD, United StatesHQ recorded Oct 22, 2026	201-500	239 contacts →
	Exact match “Shapiro and Duncan is a full service Plumbing and HVAC construction company based in Rockville, Maryland since 1976.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	Aqua-Aerobic Systems, INC	Exact match	Loves Park, IL, United StatesHQ recorded Oct 22, 2026	51-200	224 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	F.H. Furr Plumbing, Heating, AIR Conditioning, & Electrical	Exact match	Manassas, VA, United StatesHQ recorded Oct 22, 2026	501-1,000	209 contacts →
	Exact match “As a community-oriented company for over 40 years, we put our customers first and stand behind our products and services.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	Haller Enterprises	Exact match	Lititz, PA, United StatesHQ recorded Oct 22, 2026	201-500	197 contacts →
	Exact match “Since 1981, Haller Enterprises has proudly served central and eastern Pennsylvania as a leader in heating, cooling, plumbing, and electrical services.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	R.T. Moore	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 22, 2026	501-1,000	191 contacts →
	Exact match “For 70 years, family owned and operated R.T.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	L&s Mechanical	Exact match	Richardson, TX, United StatesHQ recorded Oct 22, 2026	501-1,000	188 contacts →
	Exact match “L&S Mechanical began as a Dallas-based contractor in 1985 and has grown over the years to have six locations out of Dallas, Fort Worth, Houston, San Antonio, and Austin.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “plumbing and water treatment contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,530 plumbing and water treatment contractors worldwide

See the full list, filter by size, metro and specialty, and access 21,082 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Plumbing and water treatment contractors worldwide at a glance

As of Oct 22, 2026

22.7%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

0.5%Largest-city concentration · Houston

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

7,422

11-50

5,065

51-200

1,457

201-500

226

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for plumbing and water treatment contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “plumbing and water treatment 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. 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 21,082 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 22, 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.

Plumbing and water treatment contractors by location

47 lists · largest first

Every Plumbing and water treatment contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many plumbing and water treatment contractors are there worldwide?

RevenueBase identified 14,530 company matches for plumbing and water treatment contractors worldwide 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?

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

Which country has the most plumbing and water treatment contractors?

The United States leads with 6,486 companies, followed by Canada (761) and France (744). Every plumbing and water treatment contractors list by country and city is linked on this page.

Which city has the most plumbing and water treatment contractors?

Houston leads with 70 company records, followed by London (66) and New York (57).

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 21,082 professional contacts with verified work emails tracked across these 14,530 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 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 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.