Company lists · Data refreshed November 2026

Top 25 Water system infrastructure contractors worldwide

Name: Water system infrastructure contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 12,448 companies tracked

RevenueBase identified 12,448 company matches for water system infrastructure contractors worldwide as of November 2026 and tracks 425,319 professional contacts across them, including 105,611 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for water system infrastructure 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 November 6, 2026. Country and city lists for water system infrastructure 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 Nov 6, 2026 How this list was built

12,448Companies

425,319Contacts tracked

105,611Verified emails

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The 25 largest water system infrastructure contractors worldwide

Ranked by team size

Top 25 of 12,448 company matches for water system infrastructure contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	SUEZ	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	23,115 contacts →
	Exact match “We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Tata Projects	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	14,844 contacts →
	Exact match “Tata Projects is one of the most admired Technology led Engineering, Procurement and Construction (EPC) companies in India.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Nov 6, 2026	10001+	11,748 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Downer	Exact match	North Ryde, AustraliaHQ recorded Nov 6, 2026	10001+	11,691 contacts →
	Exact match “Enabling communities to thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	CDM Smith	Exact match	Boston, MA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	8,143 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 · Nov 6, 2026 · View company records in RevenueBase
6	Afcons Infrastructure Limited	Exact match	Veera Desai Road, IndiaHQ recorded Nov 6, 2026	1,001-5,000	6,920 contacts →
	Exact match “Afcons is flagship infrastructure engineering & construction company of the Shapoorji Pallonji Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Thames Water	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	6,329 contacts →
	Exact match “Thames Water is the UK’s biggest water and wastewater services provider, providing 2.7 billion litres of drinking water and safely removing 4.6 billion litres of wastewater every…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Webuild	Exact match	Rozzano (mi), ItalyHQ recorded Nov 6, 2026	10001+	6,277 contacts →
	Exact match “Webuild is a global leader in the construction of large, complex infrastructure, with a focus on sustainable mobility, hydropower, water treatment and supply, and green buildings.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	STV	Exact match	New York, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,812 contacts →
	Exact match “Follow STV for practical insight into the infrastructure, ideas and people making communities better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BRK Ambiental	Exact match	BrazilHQ recorded Nov 6, 2026	5,001-10,000	3,589 contacts →
	Exact match “A BRK é uma das maiores empresas privadas de saneamento do país e está presente em 13 estados e mais de 100 municípios, beneficiando a vida de mais de 16 milhões de pessoas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Murphy	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,366 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	SADE	Exact match	75685 Paris Cedex 14, FranceHQ recorded Nov 6, 2026	5,001-10,000	2,673 contacts →
	Exact match “RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Brown And Caldwell	Exact match	Walnut Creek, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,553 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 · Nov 6, 2026 · View company records in RevenueBase
14	Kleinfelder	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,456 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	SRG Global	Exact match	Perth, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	2,431 contacts →
	Exact match “SRG Global is a diversified infrastructure services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Core & Main	Exact match	St. Louis, MO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,346 contacts →
	Exact match “Based in St.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	D.M. Consunji, Inc. Dmci	Exact match	Makati City, PhilippinesHQ recorded Nov 6, 2026	5,001-10,000	2,208 contacts →
	Exact match “Founded on December 24, 1954, D.M.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	ABV Rock Group	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	5,001-10,000	1,900 contacts →
	Exact match “ABV Rock Group is a construction contractor that operates in several interlinked sectors covering buildings and civil works, and acts as a principal and specialist contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Carollo Engineers	Exact match	Walnut Creek, NV, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,837 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 · Nov 6, 2026 · View company records in RevenueBase
20	PER Aarsleff A S	Exact match	Dk-8260 Viby J, DenmarkHQ recorded Nov 6, 2026	5,001-10,000	1,837 contacts →
	Exact match “I Aarsleff-koncernen er vi drevet af ordentlighed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	CHA Consulting, INC	Exact match	Albany, NH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,780 contacts →
	Exact match “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Aqualia	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	5,001-10,000	1,606 contacts →
	Exact match “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).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Flatirondragados	Exact match	Usa, CO, CanadaHQ recorded Nov 6, 2026	5,001-10,000	1,586 contacts →
	Exact match “Built on a foundation of excellence, FlatironDragados operates in the United States and Canada through FlatironDragados USA and FlatironDragados Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Webber, A Ferrovial Company	Exact match	The Woodlands, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,577 contacts →
	Exact match “Founded in 1963, Webber is a leading construction company that specializes in heavy civil, waterworks, energy and infrastructure management and is dedicated to safely providing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Clancy	Exact match	Harefield, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,331 contacts →
	Exact match “The Clancy Group was founded in 1958 by Michael Clancy as M.J.” Recorded in the RevenueBase company graph · Nov 6, 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 “water system infrastructure 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 12,448 water system infrastructure contractors worldwide

See the full list, filter by size, metro and specialty, and access 105,611 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water system infrastructure contractors worldwide at a glance

As of Nov 6, 2026

24.8%Verified-email coverage

34.2Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,690

11-50

4,603

51-200

2,461

201-500

801

501-1,000

349

1,001-5,000

275

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 water system infrastructure contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “water system infrastructure 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 105,611 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 November 6, 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.

Water system infrastructure contractors by location

46 lists · largest first

Every Water system infrastructure 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 “water system infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water system infrastructure contractors are there worldwide?

RevenueBase identified 12,448 company matches for water system infrastructure contractors worldwide as of November 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?

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

Which country has the most water system infrastructure contractors?

The United States leads with 2,783 companies, followed by Italy (685) and India (616). Every water system infrastructure contractors list by country and city is linked on this page.

Which city has the most water system infrastructure contractors?

Tehran leads with 87 company records, followed by Riyadh (73) and Sao Paulo (72).

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 105,611 professional contacts with verified work emails tracked across these 12,448 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 November 6, 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.