Company lists · Data refreshed November 2026

Top 25 Water sustainability consultants worldwide

RevenueBase identified 2,099 company matches for water sustainability consultants worldwide as of November 2026 and tracks 50,138 professional contacts across them, including 18,055 with verified work emails. The United States is the largest market and Santiago the largest hub.

This list covers company matches for water sustainability 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 sustainability 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
2,099Companies
50,138Contacts tracked
18,055Verified emails
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The 25 largest water sustainability consultants worldwide

Ranked by team size
Top 25 of 2,099 company matches for water sustainability 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchPasadena, CA, United StatesHQ recorded Nov 6, 202610001+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
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0006,972 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew York, CO, United StatesHQ recorded Nov 6, 20261,001-5,0002,306 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
4Exact matchVitacura, ChileHQ recorded Nov 6, 202610001+1,079 contacts →

Exact match

“WSP en una empresa líder en servicios profesionales de consultoría en recursos hídricos, ingeniería, medio ambiente y sustentabilidad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRedhill, United KingdomHQ recorded Nov 6, 2026501-1,000916 contacts →

Exact match

“Together with our strategic partners, we can address everything from supporting vulnerable customers, water quality, asset performance and leak detection, to integrated planning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026501-1,000717 contacts →

Exact match

“طاقة لحلول المياه هي شركة رائدة في تقديم الحلول المستدامة للمياه TAQA Water Solutions is a global company specialising in sustainable water solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDoetinchem, NetherlandsHQ recorded Nov 6, 20261,001-5,000592 contacts →

Exact match

“Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOeiras, PortugalHQ recorded Nov 6, 202651-200542 contacts →

Exact match

“AGS – Administração e Gestão de Sistemas de Salubridade, SA focuses on the preservation of the environment, acting throughout the entire water cycle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWilmington, DE, United StatesHQ recorded Nov 6, 202610001+502 contacts →

Exact match

“We’re helping companies in every industry, in every corner of the globe make real progress.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500472 contacts →

Exact match

“ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGainesville, FL, United StatesHQ recorded Nov 6, 2026201-500335 contacts →

Exact match

“ECT delivers environmental solutions for essential infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-200322 contacts →

Exact match

“CTE is a consulting company, which has 28 years of experience in the Construction Industry, offering clients consultancy across a wide range of service nable Projects and Green…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKempton Park, South AfricaHQ recorded Nov 6, 2026501-1,000301 contacts →

Exact match

“ERWAT provides sustainable, affordable, quality water care and resource recovery services through partnerships and collaborative initiatives with external role players, utilising…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDavis, OR, United StatesHQ recorded Nov 6, 2026201-500296 contacts →

Exact match

“West Yost is a water-focused consulting engineering firm ranked by Fortune Magazine as one of the “Best Small and Medium Workplaces in Consulting and Professional Services” 2023 -…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEl Paso, TX, United StatesHQ recorded Nov 6, 2026501-1,000252 contacts →

Exact match

“Provide sustainable high quality water services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSantiago, ChileHQ recorded Nov 6, 202651-200227 contacts →

Exact match

“Ecoriles es una empresa líder en la gestión y tratamiento de aguas (RILes) que integra a su experiencia la economía circular para atender las necesidades medioambientales y de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMonterrey, MexicoHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“Hydrocon busca lograr la Sustentabilidad Económica, Operativa y Ecológica de sus clientes, siendo un Aliado Estratégico en el manejo integral del agua en la industria, a través de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDurban, South AfricaHQ recorded Nov 6, 202651-200214 contacts →

Exact match

“Increasing pressure on water resources is leading to a global rise in supply-risk and cost of total water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGeismar, LA, United StatesHQ recorded Nov 6, 202651-200198 contacts →

Exact match

“At Spectrum, our mission is simple: to provide smarter, more efficient, and sustainable water solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSaint-jean-sur-richelieu, QC, CanadaHQ recorded Nov 6, 2026501-1,000168 contacts →

Exact match

“1st developer of solutions for mastering water sustainably.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202651-200165 contacts →

Exact match

“São mais de 1,2 mil projetos desenvolvidos nos setores industriais, de mineração, construção civil, abastecimento e agronegócio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500161 contacts →

Exact match

“En Gestagua, filial española del grupo Saur, los Municipios encuentran no sólo un operador eficiente para todas las fases del Ciclo del Agua, sino un socio activo para la gestión…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchJapanHQ recorded Nov 6, 20261,001-5,000154 contacts →

Exact match

“NJS Consultants is a world leader in the field of environmental engineering and consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMorrisville, CO, United StatesHQ recorded Nov 6, 2026501-1,000151 contacts →

Exact match

“AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTucson, CA, United StatesHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“M&A is a water resource consulting firm that partners with clients to address their evolving water resource challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,099 water sustainability consultants worldwide

See the full list, filter by size, metro and specialty, and access 18,055 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water sustainability consultants worldwide at a glance

As of Nov 6, 2026
36.0%Verified-email coverage
23.9Average contacts per company
1-10Median size (employees)
1.0%Largest-city concentration · Santiago
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,319
11-50
566
51-200
136
201-500
21
501-1,000
20
1,001-5,000
13
5,001-10,000
6
10001+
5

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 sustainability consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “water sustainability 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 18,055 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 sustainability consultants by location

12 lists · largest first

Every Water sustainability consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 sustainability consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water sustainability consultants are there worldwide?

RevenueBase identified 2,099 company matches for water sustainability 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?

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

Which country has the most water sustainability consultants?

The United States leads with 381 companies, followed by India (136) and Brazil (124). Every water sustainability consultants list by country and city is linked on this page.

Which city has the most water sustainability consultants?

Santiago leads with 22 company records, followed by Sao Paulo (21) and Denver (12).

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 18,055 professional contacts with verified work emails tracked across these 2,099 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.