Company lists · Data refreshed September 2026

Top 25 Water engineering firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 21,922 companies tracked

RevenueBase identified 21,922 company matches for water engineering firms worldwide as of September 2026 and tracks 694,068 professional contacts across them, including 221,466 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for water engineering 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 engineering 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

21,922Companies

694,068Contacts tracked

221,466Verified emails

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The 25 largest water engineering firms worldwide

Ranked by team size

Top 25 of 21,922 company matches for water engineering 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 21, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	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
3	GHD	Exact match	Sydney, AustraliaHQ recorded Sep 21, 2026	10001+	14,572 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 · Sep 21, 2026 · View company records in RevenueBase
4	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
5	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Sep 21, 2026	10001+	10,851 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Ch2m	Exact match	Englewood, CO, United StatesHQ recorded Sep 21, 2026	10001+	8,088 contacts →
	Exact match “CH2M is now Jacobs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	CDM Smith	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	7,527 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 21, 2026 · View company records in RevenueBase
8	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
9	Webuild	Exact match	Rozzano (mi), ItalyHQ recorded Sep 21, 2026	10001+	5,966 contacts →
	Exact match “Webuild is a global leader in the construction of large, complex infrastructure, with a focus on sustainable mobility, hydropower, water treatment and supply, and green buildings.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	JAN DE NUL Group	Exact match	Capellen, LuxembourgHQ recorded Sep 21, 2026	5,001-10,000	5,424 contacts →
	Exact match “We are World Builders shaping water, land and energy.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	4,362 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 21, 2026 · View company records in RevenueBase
12	ICA Ingenieros Civiles Asociados	Exact match	MexicoHQ recorded Sep 21, 2026	10001+	3,752 contacts →
	Exact match “Somos una empresa mexicana con 68 años de experiencia en brindar soluciones integrales a retos complejos de infraestructura.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	STV	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,556 contacts →
	Exact match “STV offers professional services for the infrastructure that powers our lives.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	National Engineering Services Pakistan PVT Limited Nespak	Exact match	Lahore, PakistanHQ recorded Sep 21, 2026	5,001-10,000	3,266 contacts →
	Exact match “NESPAK is Pakistan’s premier consultancy organization (established in 1973).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Golder	Exact match	Vancouver, BC, CanadaHQ recorded Sep 21, 2026	5,001-10,000	3,167 contacts →
	Exact match “Golder was acquired by WSP.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	ECG Engineering Consultants Group S.A	Exact match	Cairo, EgyptHQ recorded Sep 21, 2026	1,001-5,000	3,138 contacts →
	Exact match “With more than 57 years of engineering excellence, ECG is one of the leading multidisciplinary engineering consultancies in the Middle East and Africa.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Murphy	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	3,095 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Yapı Merkezi	Exact match	TürkiyeHQ recorded Sep 21, 2026	10001+	2,852 contacts →
	Exact match “Yapı Merkezi, founded in 1965, aims "to create and to realize construction projects that will serve humanity by creating environments of happiness".” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	NIRAS	Exact match	Allerød, DenmarkHQ recorded Sep 21, 2026	1,001-5,000	2,699 contacts →
	Exact match “At NIRAS, we engineer solutions for a shared future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Multiconsult	Exact match	Oslo, NorwayHQ recorded Sep 21, 2026	1,001-5,000	2,553 contacts →
	Exact match “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	SADE	Exact match	75685 Paris Cedex 14, FranceHQ recorded Sep 21, 2026	5,001-10,000	2,527 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 · Sep 21, 2026 · View company records in RevenueBase
22	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
23	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
24	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
25	Kleinfelder	Exact match	San Diego, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,344 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” 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 engineering 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 21,922 water engineering firms worldwide

See the full list, filter by size, metro and specialty, and access 221,466 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water engineering firms worldwide at a glance

As of Sep 21, 2026

31.9%Verified-email coverage

31.7Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

9,454

11-50

7,589

51-200

3,119

201-500

961

501-1,000

339

1,001-5,000

261

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 engineering firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “water engineering 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 221,466 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 engineering firms by location

90 lists · largest first

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

How many water engineering firms are there worldwide?

RevenueBase identified 21,922 company matches for water engineering 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 engineering firms?

The United States leads with 4,675 companies, followed by Brazil (1,535) and India (1,095). Every water engineering firms list by country and city is linked on this page.

Which city has the most water engineering firms?

Sao Paulo leads with 213 company records, followed by Tehran (197) and Belo Horizonte (135).

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 221,466 professional contacts with verified work emails tracked across these 21,922 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.