Company lists · Data refreshed September 2026

Top 25 Water resource management firms worldwide

RevenueBase identified 8,877 company matches for water resource management firms worldwide as of September 2026 and tracks 358,924 professional contacts across them, including 130,237 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for water resource management firms 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 September 22, 2026. Country and city lists for water resource management firms 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 Sep 22, 2026 How this list was built
8,877Companies
358,924Contacts tracked
130,237Verified emails
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The 25 largest water resource management firms worldwide

Ranked by team size
Top 25 of 8,877 company matches for water resource management firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDallas, TX, United StatesHQ recorded Sep 22, 202610001+63,914 contacts →

Exact match

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Sep 22, 202610001+21,549 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 · Sep 22, 2026 · View company records in RevenueBase
3Exact matchPasadena, CA, United StatesHQ recorded Sep 22, 202610001+12,999 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 · Sep 22, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 22, 202610001+9,318 contacts →

Exact match

“What if you could shape built and natural environments – and the future of those that use them?”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 22, 20265,001-10,0007,527 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 · Sep 22, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,0006,636 contacts →

Exact match

“At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchPittsburgh, PA, United StatesHQ recorded Sep 22, 20265,001-10,0004,362 contacts →

Exact match

“Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchAubervilliers, FranceHQ recorded Sep 22, 202610001+4,214 contacts →

Exact match

“Partenaire des territoires, Veolia propose des solutions pour la gestion de l'eau, des déchets et de l'énergie qui participent au développement durable des villes et des…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchHuntingdon, United KingdomHQ recorded Sep 22, 20265,001-10,0003,430 contacts →

Exact match

“Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLahore, PakistanHQ recorded Sep 22, 20265,001-10,0003,266 contacts →

Exact match

“NESPAK is Pakistan’s premier consultancy organization (established in 1973).”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 22, 20261,001-5,0002,473 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 · Sep 22, 2026 · View company records in RevenueBase
12Exact matchBoca Raton, FL, United StatesHQ recorded Sep 22, 20261,001-5,0002,393 contacts →

Exact match

“Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchMoon Township, PA, United StatesHQ recorded Sep 22, 20261,001-5,0002,145 contacts →

Exact match

“Civil & Environmental Consultants, Inc.(CEC) provides comprehensive market-oriented consulting services that advance the strategic business objectives of its clients.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchLincoln, NE, United StatesHQ recorded Sep 22, 20261,001-5,0002,108 contacts →

Exact match

“Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 22, 20261,001-5,0002,100 contacts →

Exact match

“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 22, 20261,001-5,0001,932 contacts →

Exact match

“Employee-Owned.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 22, 20261,001-5,0001,718 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 · Sep 22, 2026 · View company records in RevenueBase
18Exact matchBaltimore, MD, United StatesHQ recorded Sep 22, 20261,001-5,0001,641 contacts →

Exact match

“RK & K is a full-service planning, engineering, environmental, and construction management/inspection firm serving a wide range of clients throughout the United States.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchWoburn, MA, United StatesHQ recorded Sep 22, 20261,001-5,0001,604 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLas Condes, ChileHQ recorded Sep 22, 20261,001-5,0001,553 contacts →

Exact match

“Nuestra gestión se sustenta en altos estándares de profesionalismo y experiencia que nos permite entregar un servicio de gran calidad, cautelando la sostenibilidad de los recursos…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchFort Worth, TX, United StatesHQ recorded Sep 22, 20261,001-5,0001,496 contacts →

Exact match

“Freese and Nichols is a professional planning, consulting and engineering firm serving clients across the United States.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchMelbourne, AustraliaHQ recorded Sep 22, 20261,001-5,0001,434 contacts →

Exact match

“In Melbourne, water is essential to our way of life.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchHørsholm, DenmarkHQ recorded Sep 22, 20261,001-5,0001,427 contacts →

Exact match

“There is no substitute for water.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchHeerenveen, NetherlandsHQ recorded Sep 22, 20261,001-5,0001,397 contacts →

Exact match

“Antea Group is het thuis van 1800 trotse ingenieurs en adviseurs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchMadrid, SpainHQ recorded Sep 22, 20265,001-10,0001,395 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 · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 8,877 water resource management firms worldwide

See the full list, filter by size, metro and specialty, and access 130,237 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water resource management firms worldwide at a glance

As of Sep 22, 2026
36.3%Verified-email coverage
40.4Average contacts per company
11-50Median size (employees)
0.7%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
4,388
11-50
2,820
51-200
1,020
201-500
323
501-1,000
120
1,001-5,000
114
5,001-10,000
23
10001+
22

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 resource management firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “water resource management firms” 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 130,237 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 September 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.

Water resource management firms by location

32 lists · largest first

Every Water resource management firms 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 resource management firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water resource management firms are there worldwide?

RevenueBase identified 8,877 company matches for water resource management firms worldwide as of September 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?

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

Which country has the most water resource management firms?

The United States leads with 2,184 companies, followed by Brazil (535) and Germany (447). Every water resource management firms list by country and city is linked on this page.

Which city has the most water resource management firms?

Sao Paulo leads with 64 company records, followed by Tehran (60) and Belo Horizonte (58).

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 130,237 professional contacts with verified work emails tracked across these 8,877 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 September 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.