Company lists · Data refreshed September 2026

Top 25 Water management consulting firms worldwide

Name: Water management consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 12,770 companies tracked

RevenueBase identified 12,770 company matches for water management consulting firms worldwide as of September 2026 and tracks 297,584 professional contacts across them, including 103,764 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for water management consulting 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 21, 2026. Country and city lists for water management consulting 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 21, 2026 How this list was built

12,770Companies

297,584Contacts tracked

103,764Verified emails

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The 25 largest water management consulting firms worldwide

Ranked by team size

Top 25 of 12,770 company matches for water management consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 Sep 21, 2026	10001+	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 21, 2026 · View company records in RevenueBase
2	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Sep 21, 2026	10001+	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 21, 2026 · View company records in RevenueBase
3	XYLEM	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	10001+	9,320 contacts →
	Exact match “Xylem is the global leader in advanced technologies, solutions and services that address the world’s biggest water challenges.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Pentair	Exact match	London, United KingdomHQ recorded Sep 21, 2026	5,001-10,000	6,636 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 21, 2026 · View company records in RevenueBase
5	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	ION Exchange India LTD	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	1,001-5,000	3,810 contacts →
	Exact match “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Brown And Caldwell	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,473 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 21, 2026 · View company records in RevenueBase
8	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,393 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 21, 2026 · View company records in RevenueBase
9	VA Tech Wabag LTD	Exact match	Wabag House, IndiaHQ recorded Sep 21, 2026	1,001-5,000	2,375 contacts →
	Exact match “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Civil & Environmental Consultants, INC	Exact match	Moon Township, PA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,145 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 21, 2026 · View company records in RevenueBase
11	Hazen And Sawyer	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,100 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 21, 2026 · View company records in RevenueBase
12	Carollo Engineers	Exact match	Walnut Creek, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,718 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 21, 2026 · View company records in RevenueBase
13	CHA Consulting, INC	Exact match	Albany, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,639 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 · Sep 21, 2026 · View company records in RevenueBase
14	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,629 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	GEI Consultants, INC	Exact match	Woburn, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,604 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Freese And Nichols	Exact match	Fort Worth, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,496 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 21, 2026 · View company records in RevenueBase
17	DHI	Exact match	Hørsholm, DenmarkHQ recorded Sep 21, 2026	1,001-5,000	1,427 contacts →
	Exact match “There is no substitute for water.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Antea Group Nederland	Exact match	Heerenveen, NetherlandsHQ recorded Sep 21, 2026	1,001-5,000	1,397 contacts →
	Exact match “Antea Group is het thuis van 1800 trotse ingenieurs en adviseurs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,395 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Aqualia	Exact match	Madrid, SpainHQ recorded Sep 21, 2026	5,001-10,000	1,395 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 21, 2026 · View company records in RevenueBase
21	Volvo Eicher Commerical Vehical Limited	Exact match	Dhar, IndiaHQ recorded Sep 21, 2026	n/a	1,196 contacts →
	Exact match “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Verdantas	Exact match	Tampa, FL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,139 contacts →
	Exact match “At Verdantas, we blend engineering and environmental science together with advanced technology and world-renowned labs to create solutions with the big picture in mind.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Apex Companies	Exact match	Rockville, MD, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,137 contacts →
	Exact match “Who is Apex?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Bge, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,112 contacts →
	Exact match “Ranked No.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,088 contacts →
	Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Sep 21, 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 management consulting firms”. 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 12,770 water management consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 103,764 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water management consulting firms worldwide at a glance

As of Sep 21, 2026

34.9%Verified-email coverage

23.3Average contacts per company

1-10Median size (employees)

0.7%Largest-city concentration · Tehran

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

6,379

11-50

4,220

51-200

1,456

201-500

379

501-1,000

119

1,001-5,000

102

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 management consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “water management consulting 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 103,764 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 21, 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 management consulting firms by location

52 lists · largest first

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

How many water management consulting firms are there worldwide?

RevenueBase identified 12,770 company matches for water management consulting 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?

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

Which country has the most water management consulting firms?

The United States leads with 2,952 companies, followed by India (751) and Brazil (691). Every water management consulting firms list by country and city is linked on this page.

Which city has the most water management consulting firms?

Tehran leads with 93 company records, followed by Sao Paulo (87) and Pune (75).

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 103,764 professional contacts with verified work emails tracked across these 12,770 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 21, 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.