Company lists · Data refreshed November 2026

Top 25 Wastewater infrastructure contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 9,369 companies tracked

RevenueBase identified 9,369 company matches for wastewater infrastructure contractors worldwide as of November 2026 and tracks 287,973 professional contacts across them, including 81,868 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for wastewater 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 wastewater 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

9,369Companies

287,973Contacts tracked

81,868Verified emails

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The 25 largest wastewater infrastructure contractors worldwide

Ranked by team size

Top 25 of 9,369 company matches for wastewater 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	Sabesp	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	10001+	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
3	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
4	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
5	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
6	Severn Trent	Exact match	Coventry, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	6,089 contacts →
	Exact match “Water is wonderful.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	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
9	CEDAE	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,659 contacts →
	Exact match “Constituída oficialmente em 1º de agosto de 1975, a Companhia Estadual de Águas e Esgotos (CEDAE) é oriunda da fusão da Empresa de Águas do Estado da Guanabara (CEDAG), da Empresa…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	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
11	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
12	Forterra	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,844 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	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
14	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
15	Grupo Águas DO Brasil	Exact match	Niterói, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,481 contacts →
	Exact match “Fundado em 1998, o Grupo Águas do Brasil é um dos principais grupos privados de saneamento básico do país, presente em 32 municípios nos estados do Rio de Janeiro, Minas Gerais e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Lanes Group	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,351 contacts →
	Exact match “Lanes Group is a leading provider of specialist drainage, utility, and asset maintenance services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	EJ	Exact match	East Jordan, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,289 contacts →
	Exact match “EJ is the global leader in the design, manufacture, and distribution of access solutions for the world’s growing infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Watercare Services Limited	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	1,001-5,000	1,196 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
19	Morrison Water Services	Exact match	Stevenage, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,142 contacts →
	Exact match “With a significant national workforce operating daily in local communities, we support our clients to keep their assets resilient ensuring customer taps flow, and all wastewater…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Concord Engineering & Contracting	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	1,001-5,000	1,134 contacts →
	Exact match “We are one of Egypt’s largest companies working in the field of civil construction with vast experience in complex infrastructure projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Urban Utilities	Exact match	Fortitude Valley, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	1,112 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
22	Inframark	Exact match	Horsham, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,107 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
23	FM Conway LTD	Exact match	Sevenoaks, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,053 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
24	Miller Pipeline	Exact match	Indianapolis, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,051 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
25	MWH Treatment	Exact match	Stockport, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	971 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

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 “wastewater 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 9,369 wastewater infrastructure contractors worldwide

See the full list, filter by size, metro and specialty, and access 81,868 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater infrastructure contractors worldwide at a glance

As of Nov 6, 2026

28.4%Verified-email coverage

30.7Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,832

11-50

3,491

51-200

1,869

201-500

578

501-1,000

233

1,001-5,000

172

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 wastewater infrastructure contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “wastewater 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 81,868 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.

Wastewater infrastructure contractors by location

43 lists · largest first

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

How many wastewater infrastructure contractors are there worldwide?

RevenueBase identified 9,369 company matches for wastewater 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 wastewater infrastructure contractors?

The United States leads with 2,409 companies, followed by India (509) and Germany (409). Every wastewater infrastructure contractors list by country and city is linked on this page.

Which city has the most wastewater infrastructure contractors?

Tehran leads with 58 company records, followed by Houston (49) and Pune (48).

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 81,868 professional contacts with verified work emails tracked across these 9,369 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.