Company lists · Data refreshed September 2026

Top 25 Building water management system contractors worldwide

Name: Building water management system contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 3,871 companies tracked

RevenueBase identified 3,871 building water management system contractors worldwide as of September 2026 and tracks 65,102 professional contacts across them, including 19,994 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers building water management system contractors worldwide, 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 16, 2026. Country and city lists for building water management system contractors follow the table.

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 16, 2026 86% judged on-target in blind review

3,871Companies

65,102Contacts tracked

19,994Verified emails

0Mobile numbers

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The 25 largest building water management system contractors worldwide

Ranked by team size

Top 25 of 3,871 building water management system contractors worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building water management system 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	Pentair	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	5,001-10,000	6,636 contacts →
	Partial evidence “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Source: RevenueBase Database · checked Sep 16, 2026
2	Watts Water Technologies	Partial evidence	North Andover, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,503 contacts →
	Partial evidence “We are a global leader of quality water solutions for residential, industrial, municipal, and commercial settings.” Source: RevenueBase Database · checked Sep 16, 2026
3	Core & Main	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,165 contacts →
	Indirect evidence “Based in St.” Source: RevenueBase Database · checked Sep 16, 2026
4	Ashirvad By Aliaxis	Partial evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	5,001-10,000	1,830 contacts →
	Partial evidence “Ashirvad by Aliaxis \| Pioneering Fluid Management for Over 27 Years For more than two decades, Ashirvad has been at the forefront of fluid management solutions in India-delivering…” Source: RevenueBase Database · checked Sep 16, 2026
5	Aqualia	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	5,001-10,000	1,395 contacts →
	Partial evidence “Aqualia es la cuarta empresa de gestión del agua de Europa y la novena del Mundo por población servida, según el último ranking de Global Water Intelligence (diciembre de 2024).” Source: RevenueBase Database · checked Sep 16, 2026
6	Mckenney's, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,077 contacts →
	Indirect evidence “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Source: RevenueBase Database · checked Sep 16, 2026
7	Viega Deutschland	Indirect evidence	Attendorn, GermanyHQ checked Sep 16, 2026	5,001-10,000	988 contacts →
	Indirect evidence “Viega is among the worldwide leading producers of installation technology for the sanitation and heating sector.” Source: RevenueBase Database · checked Sep 16, 2026
8	MWH Treatment	Partial evidence	Stockport, United KingdomHQ checked Sep 16, 2026	1,001-5,000	879 contacts →
	Partial evidence “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Source: RevenueBase Database · checked Sep 16, 2026
9	ACO Group	Partial evidence	Büdelsdorf, GermanyHQ checked Sep 16, 2026	5,001-10,000	710 contacts →
	Partial evidence “ACO is a Water-Tech company that protects water.” Source: RevenueBase Database · checked Sep 16, 2026
10	Selwood LTD	Partial evidence	Eastleigh, United KingdomHQ checked Sep 16, 2026	501-1,000	477 contacts →
	Partial evidence “Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Source: RevenueBase Database · checked Sep 16, 2026
11	MWH	Indirect evidence	Broomfield, CO, United StatesHQ checked Sep 16, 2026	501-1,000	428 contacts →
	Indirect evidence “As a leading U.S.” Source: RevenueBase Database · checked Sep 16, 2026
12	GS Inima Environment	Partial evidence	Madrid, SpainHQ checked Sep 16, 2026	1,001-5,000	373 contacts →
	Partial evidence “Positioned as one of the companies with the largest number of plants in terms of concessions, GS Inima is a world benchmark in the water sector acting in all phases of the…” Source: RevenueBase Database · checked Sep 16, 2026
13	Fisia Italimpianti	Partial evidence	Genova, ItalyHQ checked Sep 16, 2026	51-200	362 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
14	L&t	Strong evidence	Chennai, IndiaHQ checked Sep 16, 2026	5,001-10,000	350 contacts →
	Strong evidence “L&T Construction's Water & Effluent Treatment business vertical provides state-of-the-art design, detailed engineering, procurement, project management, project execution…” Source: RevenueBase Database · checked Sep 16, 2026
15	Abdullah Ibrahim AL Sayegh And Sons Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 16, 2026	1,001-5,000	347 contacts →
	Indirect evidence “Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.” Source: RevenueBase Database · checked Sep 16, 2026
16	United Mechanical	Partial evidence	San Jose, CA, United StatesHQ checked Sep 16, 2026	201-500	346 contacts →
	Partial evidence “United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…” Source: RevenueBase Database · checked Sep 16, 2026
17	ZURN	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	501-1,000	324 contacts →
	Indirect evidence “We build value and trust by solving for our customers and their challenges.” Source: RevenueBase Database · checked Sep 16, 2026
18	Orient Irrigation Services LLC	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 16, 2026	501-1,000	314 contacts →
	Partial evidence “Orient Irrigation Services was established in Dubai in 1977, with the view of using the limited local water resources to obtain maximum yields and results through modern and…” Source: RevenueBase Database · checked Sep 16, 2026
19	Etna Supply	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 16, 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 16, 2026
20	Tece SE	Indirect evidence	Emsdetten, GermanyHQ checked Sep 16, 2026	1,001-5,000	302 contacts →
	Indirect evidence “We have been operating as an independent, family-run business in close proximity to people and the markets for over 30 years.” Source: RevenueBase Database · checked Sep 16, 2026
21	Almar Water Servicios Latam	Strong evidence	Santiago, ChileHQ checked Sep 16, 2026	501-1,000	288 contacts →
	Strong evidence “Almar Water Services is the Almar Water Solutions services business line, dedicated to providing integral solutions in sustainable water management, maintaining quality standards…” Source: RevenueBase Database · checked Sep 16, 2026
22	Wavin Uk, An Orbia Business	Strong evidence	Sheffield, United KingdomHQ checked Sep 16, 2026	1,001-5,000	283 contacts →
	Strong evidence “Wavin Limited is the UK's leading supplier of water management, plastic drainage, plumbing & underfloor heating and drainage systems for the building, construction and utilities…” Source: RevenueBase Database · checked Sep 16, 2026
23	Culligan By Waterco	Strong evidence	Lombard, IL, United StatesHQ checked Sep 16, 2026	501-1,000	265 contacts →
	Strong evidence “Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.” Source: RevenueBase Database · checked Sep 16, 2026
24	EHTP	Indirect evidence	Saint-etienne-du-grès, FranceHQ checked Sep 16, 2026	501-1,000	264 contacts →
	Indirect evidence “Nous maîtrisons l’ensemble des techniques du secteur de la canalisation : collecte, transport et traitement des eaux usées, renouvellement et interconnexion des conduites AEP…” Source: RevenueBase Database · checked Sep 16, 2026
25	DH	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 16, 2026	n/a	263 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 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: building water management system 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 building water management system contractors.
Partial evidence: Its own public description names part of building water management system contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building water management system 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 3,871 building water management system contractors worldwide

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Building water management system contractors worldwide at a glance

As of Sep 16, 2026

30.7%Verified-email coverage

16.8Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Pune

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,597

11-50

1,497

51-200

535

201-500

106

501-1,000

1,001-5,000

5,001-10,000

10001+

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 building water management system 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.
Coverage: 24 countries, largest first: the United States, India, Italy, the United Kingdom, Australia, France, Canada, Germany, the Netherlands, Brazil and 14 more. Country and city lists for building water management system contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “building water management system 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 building water management system 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 building water management system contractors, and records with no verified work email.
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, 19,994 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 16, 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.

Building water management system contractors by location

24 lists · largest first

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

Countries

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 building water management system 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 building water management system contractors are there worldwide?

RevenueBase identified 3,871 building water management system contractors worldwide 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?

Pentair, headquartered in London, tops this list with the largest team on record.

Which country has the most building water management system contractors?

The United States leads with 1,022 companies, followed by India (354) and Italy (268). Every building water management system contractors list by country and city is linked on this page.

Which city has the most building water management system contractors?

Pune leads with 35 headquartered companies, followed by Ahmedabad (27) and New Delhi (27).

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 19,994 verified decision-maker contacts tracked across these 3,871 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 16, 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.