Company lists · Data refreshed September 2026

Top 25 Water utilities IT consultants worldwide

RevenueBase identified 8,923 water utilities IT consultants worldwide as of September 2026 and tracks 283,729 professional contacts across them, including 87,935 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers water utilities IT consultants worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for water utilities IT consultants follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
8,923Companies
283,729Contacts tracked
87,935Verified emails
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The 25 largest water utilities IT consultants worldwide

Ranked by team size
Top 25 of 8,923 water utilities IT consultants worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water utilities IT consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParis, FranceHQ checked Sep 29, 202610001+21,549 contacts →

Partial evidence

“We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidencePasadena, CA, United StatesHQ checked Sep 29, 202610001+12,999 contacts →

Partial evidence

“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceWashington, DC, United StatesHQ checked Sep 29, 202610001+9,320 contacts →

Partial evidence

“Xylem is the global leader in advanced technologies, solutions and services that address the world’s biggest water challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 29, 20265,001-10,0006,636 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceSevilla, SpainHQ checked Sep 29, 202610001+6,630 contacts →

Indirect evidence

“Ayesa is a global provider of technology and engineering services with more than 11500 employees in twenty-three countries across Europe, Latin America, Africa and Asia.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceReading, United KingdomHQ checked Sep 29, 20261,001-5,0005,648 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceCoventry, United KingdomHQ checked Sep 29, 20265,001-10,0005,563 contacts →

Partial evidence

“Water is wonderful.”

Source: RevenueBase Database · checked Sep 29, 2026
8Strong evidenceIssy-les-moulineaux, FranceHQ checked Sep 29, 202610001+3,694 contacts →

Strong evidence

“As a pure player in water and essential services, Saur works to protect the environment in the heart of the territories it serves.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceLahore, PakistanHQ checked Sep 29, 20265,001-10,0003,266 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceCamden, NJ, United StatesHQ checked Sep 29, 20265,001-10,0002,876 contacts →

Partial evidence

“American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 29, 20261,001-5,0002,473 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceWabag House, IndiaHQ checked Sep 29, 20261,001-5,0002,375 contacts →

Partial evidence

“WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0002,100 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 29, 202610001+2,034 contacts →

Indirect evidence

“Página Oficial da COPASA -”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceJacksonville, FL, United StatesHQ checked Sep 29, 20261,001-5,0001,908 contacts →

Partial evidence

“JEA is a community-based electric, water and sewer utility in Jacksonville, Florida, dedicated to safety, reliability and customer satisfaction.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceCardiff, United KingdomHQ checked Sep 29, 20261,001-5,0001,868 contacts →

Indirect evidence

“Bath-times, half-times, party-times, meeting-times, and cooking-times.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceDublin, IrelandHQ checked Sep 29, 20261,001-5,0001,763 contacts →

Indirect evidence

“We are Uisce Éireann.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceWalnut Creek, CA, United StatesHQ checked Sep 29, 20261,001-5,0001,718 contacts →

Partial evidence

“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceZwolle, NetherlandsHQ checked Sep 29, 20261,001-5,0001,690 contacts →

Indirect evidence

“Vitens is het grootste drinkwaterbedrijf van Nederland.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceAlbany, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,639 contacts →

Indirect evidence

“CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLas Condes, ChileHQ checked Sep 29, 20261,001-5,0001,553 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceAlger, AlgeriaHQ checked Sep 29, 20265,001-10,0001,543 contacts →

Indirect evidence

“La Société des Eaux et de l’Assainissement d’Alger (SEAAL), est une Société Publique par actions, détenue à 70% par l’Algérienne des Eaux (ADE) et à 30% par l’Office National de…”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceMelbourne, AustraliaHQ checked Sep 29, 20261,001-5,0001,527 contacts →

Strong evidence

“Hansen Technologies (ASX:HSN) is a global software and services provider to the energy, water/utilities and telecommunications industries.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceNew Delhi, IndiaHQ checked Sep 29, 20261,001-5,0001,489 contacts →

Partial evidence

“Rodic Consultants is a digital-first, multi-sector and multi-service infrastructure consultancy committed to building solutions that empower progress and transform nations.”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceBryn Mawr, PA, United StatesHQ checked Sep 29, 20261,001-5,0001,478 contacts →

Strong evidence

“Aqua is one of the largest U.S-based, publicly traded water and wastewater utilities, serving more than 3 million people in Illinois, Indiana, New Jersey, North Carolina…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 8,923 water utilities IT consultants worldwide

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Water utilities IT consultants worldwide at a glance

As of Sep 29, 2026
31.0%Verified-email coverage
31.8Average contacts per company
11-50Median size (employees)
0.8%Largest-city concentration · Sao Paulo
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
3,837
11-50
3,009
51-200
1,284
201-500
397
501-1,000
143
1,001-5,000
152
5,001-10,000
26
10001+
25

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among water utilities IT consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for water utilities IT consultants are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “water utilities IT consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names water utilities IT consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among water utilities IT consultants, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 87,935 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Water utilities IT consultants by location

49 lists · largest first

Every Water utilities IT 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names water utilities IT consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many water utilities IT consultants are there worldwide?

RevenueBase identified 8,923 water utilities IT consultants worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SUEZ, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most water utilities IT consultants?

The United States leads with 1,696 companies, followed by India (694) and Brazil (518). Every water utilities IT consultants list by country and city is linked on this page.

Which city has the most water utilities IT consultants?

Sao Paulo leads with 73 headquartered companies, followed by Pune (63) and Tehran (58).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 87,935 verified decision-maker contacts tracked across these 8,923 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.