Company lists · Data refreshed November 2026

Top 25 Water supply infrastructure consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 9,117 companies tracked

RevenueBase identified 9,117 company matches for water supply infrastructure consultants worldwide as of November 2026 and tracks 373,246 professional contacts across them, including 125,216 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for water supply infrastructure consultants 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 supply infrastructure consultants 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

9,117Companies

373,246Contacts tracked

125,216Verified emails

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The 25 largest water supply infrastructure consultants worldwide

Ranked by team size

Top 25 of 9,117 company matches for water supply infrastructure consultants 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	68,572 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	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
3	GHD	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	10001+	15,329 contacts →
	Exact match “We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Nov 6, 2026	10001+	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
5	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
6	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
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	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
9	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
10	Geosyntec Consultants	Exact match	Boca Raton, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,553 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 · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	Hazen And Sawyer	Exact match	New York, CO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,306 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 · Nov 6, 2026 · View company records in RevenueBase
14	Olsson	Exact match	Lincoln, AR, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,289 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 · Nov 6, 2026 · View company records in RevenueBase
15	Copasa	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	10001+	2,152 contacts →
	Exact match “Página Oficial da COPASA -” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	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
17	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
18	Wapcos Limited Official	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,636 contacts →
	Exact match “WAPCOS Limited is a “MINI RATNA-I” Public Sector Enterprise under the aegis of the Union Ministry of Water Resources, River Development & Ganga Rejuvenation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Freese And Nichols	Exact match	Fort Worth, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,588 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 · Nov 6, 2026 · View company records in RevenueBase
20	Ingetec	Exact match	Bogota, ColombiaHQ recorded Nov 6, 2026	1,001-5,000	1,588 contacts →
	Exact match “Ingetec está conformado por un grupo de profesionales con alto nivel de especialización, quienes trabajan dentro de las diferentes gerencias y divisiones que componen la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Ulteig	Exact match	Fargo, IA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,491 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
22	HALFF	Exact match	Richardson, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,365 contacts →
	Exact match “Welcome to Halff, the infrastructure consulting firm planned, designed, engineered, constructed-and purposed-for people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Consor	Exact match	United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,356 contacts →
	Exact match “Consor is a leading engineering and consulting firm advancing intelligent, future-ready infrastructure across transportation and water systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Halcrow	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	1,353 contacts →
	Exact match “Halcrow is now Jacobs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Intercontinental Consultants And Technocrats Pvt. LTD	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,329 contacts →
	Exact match “A multi disciplinary engineering consultancy organisation, headquartered in New Delhi, India providing solutions globally.” 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 supply infrastructure consultants”. 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 9,117 water supply infrastructure consultants worldwide

See the full list, filter by size, metro and specialty, and access 125,216 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water supply infrastructure consultants worldwide at a glance

As of Nov 6, 2026

33.5%Verified-email coverage

40.9Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,080

11-50

3,018

51-200

1,217

201-500

378

501-1,000

163

1,001-5,000

118

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 supply infrastructure consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “water supply infrastructure consultants” 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 125,216 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 supply infrastructure consultants by location

48 lists · largest first

Every Water supply infrastructure consultants 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 supply infrastructure consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water supply infrastructure consultants are there worldwide?

RevenueBase identified 9,117 company matches for water supply infrastructure consultants 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?

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

Which country has the most water supply infrastructure consultants?

The United States leads with 1,587 companies, followed by India (517) and Australia (467). Every water supply infrastructure consultants list by country and city is linked on this page.

Which city has the most water supply infrastructure consultants?

Tehran leads with 79 company records, followed by Sao Paulo (74) and Bogota (51).

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 125,216 professional contacts with verified work emails tracked across these 9,117 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.