Company lists · Data refreshed November 2026

Top 25 Drinking water infrastructure contractors worldwide

RevenueBase identified 6,688 company matches for drinking water infrastructure contractors worldwide as of November 2026 and tracks 255,482 professional contacts across them, including 78,042 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for drinking water 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 drinking water 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
6,688Companies
255,482Contacts tracked
78,042Verified emails
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The 25 largest drinking water infrastructure contractors worldwide

Ranked by team size
Top 25 of 6,688 company matches for drinking water 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParis, FranceHQ recorded Nov 6, 202610001+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
2Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202610001+14,232 contacts →

Exact match

“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202610001+11,763 contacts →

Exact match

“Sabesp is a mixed capital company that was founded in 1973 and is currently responsible for supplying water and collecting and treating sewage in the 375 municipalities of São…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNorth Ryde, AustraliaHQ recorded Nov 6, 202610001+11,691 contacts →

Exact match

“Enabling communities to thrive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Nov 6, 20265,001-10,0008,143 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
6Exact matchReading, United KingdomHQ recorded Nov 6, 20261,001-5,0006,329 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
7Exact matchCoventry, United KingdomHQ recorded Nov 6, 20265,001-10,0006,089 contacts →

Exact match

“Water is wonderful.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew York, TX, United StatesHQ recorded Nov 6, 20261,001-5,0003,812 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
9Exact matchBrazilHQ recorded Nov 6, 20265,001-10,0003,589 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
10Exact match75685 Paris Cedex 14, FranceHQ recorded Nov 6, 20265,001-10,0002,673 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
11Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 20261,001-5,0002,456 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
12Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 20261,001-5,0002,346 contacts →

Exact match

“Based in St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWalnut Creek, NV, United StatesHQ recorded Nov 6, 20261,001-5,0001,837 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
14Exact matchThe Woodlands, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,577 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
15Exact matchFargo, IA, United StatesHQ recorded Nov 6, 20261,001-5,0001,491 contacts →

Exact match

“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261,001-5,0001,196 contacts →

Exact match

“At Watercare we’re proud to provide a lifeline service to the people of Auckland, while protecting the environment for future generations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFortitude Valley, AustraliaHQ recorded Nov 6, 20261,001-5,0001,112 contacts →

Exact match

“We’re responsible for delivering world-class drinking water and wastewater services to the growing communities of Brisbane, Ipswich, Lockyer Valley, Somerset and Scenic Rim.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHorsham, PA, United StatesHQ recorded Nov 6, 20261,001-5,0001,107 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPortland, ME, United StatesHQ recorded Nov 6, 20261,001-5,0001,098 contacts →

Exact match

“Woodard & Curran is more than just a consulting firm – we are an employee-owned integrated science, engineering, design-build, and operations company specializing in water and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSevenoaks, United KingdomHQ recorded Nov 6, 20261,001-5,0001,053 contacts →

Exact match

“FM Conway is a leading infrastructure services company delivering vital services in transportation, the built environment and open spaces for communities and businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchIndianapolis, OH, United StatesHQ recorded Nov 6, 20261,001-5,0001,051 contacts →

Exact match

“Miller Pipeline is the single-source, premier provider for all underground construction system solutions in transmission, distribution, and water/wastewater management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStockport, United KingdomHQ recorded Nov 6, 20261,001-5,000971 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchIndiaHQ recorded Nov 6, 20261,001-5,000961 contacts →

Exact match

“SPML Infra Limited (formarly Subhash Projects And Marketing Limited) is a leading infrastructure development company with more than two and half decades of multi-disciplinary…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRedhill, United KingdomHQ recorded Nov 6, 2026501-1,000916 contacts →

Exact match

“Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCairo, EgyptHQ recorded Nov 6, 20261,001-5,000867 contacts →

Exact match

“Holding Company for Water and Waste Water is a Civil Engineering company located in Cairo Governorate, Egypt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 6,688 drinking water infrastructure contractors worldwide

See the full list, filter by size, metro and specialty, and access 78,042 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drinking water infrastructure contractors worldwide at a glance

As of Nov 6, 2026
30.5%Verified-email coverage
38.2Average contacts per company
11-50Median size (employees)
1.0%Largest-city concentration · Tehran
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,104
11-50
2,462
51-200
1,240
201-500
420
501-1,000
188
1,001-5,000
146
5,001-10,000
29
10001+
16

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 drinking water infrastructure contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “drinking water 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 78,042 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.

Drinking water infrastructure contractors by location

33 lists · largest first

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

How many drinking water infrastructure contractors are there worldwide?

RevenueBase identified 6,688 company matches for drinking water 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 drinking water infrastructure contractors?

The United States leads with 1,448 companies, followed by India (375) and Australia (283). Every drinking water infrastructure contractors list by country and city is linked on this page.

Which city has the most drinking water infrastructure contractors?

Tehran leads with 68 company records, followed by Riyadh (42) and Sao Paulo (39).

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 78,042 professional contacts with verified work emails tracked across these 6,688 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.