Company lists · Data refreshed September 2026

Top 25 Water efficiency consultants worldwide

RevenueBase identified 1,696 company matches for water efficiency consultants worldwide as of September 2026 and tracks 23,605 professional contacts across them, including 8,354 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for water efficiency 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 September 22, 2026. Country and city lists for water efficiency 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 Sep 22, 2026 How this list was built
1,696Companies
23,605Contacts tracked
8,354Verified emails
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The 25 largest water efficiency consultants worldwide

Ranked by team size
Top 25 of 1,696 company matches for water efficiency consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchLondon, United KingdomHQ recorded Sep 22, 20265,001-10,0006,636 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 22, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 22, 20261,001-5,0002,100 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 22, 2026 · View company records in RevenueBase
3Exact matchRedhill, United KingdomHQ recorded Sep 22, 2026501-1,000842 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 · Sep 22, 2026 · View company records in RevenueBase
4Exact matchDoetinchem, NetherlandsHQ recorded Sep 22, 20261,001-5,000609 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 · Sep 22, 2026 · View company records in RevenueBase
5Exact matchLong Beach, CA, United StatesHQ recorded Sep 22, 2026201-500375 contacts →

Exact match

“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchIrving, TX, United StatesHQ recorded Sep 22, 20261,001-5,000251 contacts →

Exact match

“Chemsearch FE’s mission is simple-to help facilities save water, energy and reduce operating costs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchFairfax, VA, United StatesHQ recorded Sep 22, 2026201-500214 contacts →

Exact match

“PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchOttawa, ON, CanadaHQ recorded Sep 22, 2026201-500210 contacts →

Exact match

“Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchDurban, South AfricaHQ recorded Sep 22, 202651-200202 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 · Sep 22, 2026 · View company records in RevenueBase
10Exact matchMonterrey, MexicoHQ recorded Sep 22, 2026201-500200 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 · Sep 22, 2026 · View company records in RevenueBase
11Exact matchSt Michael, MN, United StatesHQ recorded Sep 22, 2026201-500143 contacts →

Exact match

“Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchCanning Vale, AustraliaHQ recorded Sep 22, 202651-200142 contacts →

Exact match

“With over 30 years specialising and innovation in purpose-built and complete water package pumping and treatment solutions locally, nationally and internationally, it’s our vision…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchLa Crosse, WI, United StatesHQ recorded Sep 22, 202651-200121 contacts →

Exact match

“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchVancouver, BC, CanadaHQ recorded Sep 22, 202651-200108 contacts →

Exact match

“BQE Water is a service provider specializing in water treatment and management for metals mining, smelting and refining.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-200101 contacts →

Exact match

“Isle’s vision is to be the leading catalyst in water industry transformation through exceptional business insight, technology, and innovative solutions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchOakland, CA, United StatesHQ recorded Sep 22, 202651-20097 contacts →

Exact match

“In 1998, I started kW Engineering as a two-person firm with a singular vision: to become the leading technical experts at saving money in buildings by saving energy and water.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchDenver, CO, United StatesHQ recorded Sep 22, 202651-20094 contacts →

Exact match

“LRE Water is now Spheros Environmental.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchMayfield West, AustraliaHQ recorded Sep 22, 202651-20093 contacts →

Exact match

“Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchSanta Maria, BrazilHQ recorded Sep 22, 202611-5085 contacts →

Exact match

“Atuando desde 2003, a Rede Químea tem como propósito gerar oportunidades para as pessoas fazerem a diferença no mundo, fornecendo soluções sustentáveis, eficazes e colaborativas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchFlower Mound, TX, United StatesHQ recorded Sep 22, 202651-20081 contacts →

Exact match

“Founded by Bill Cutler in 1974, Niagara Conservation Corporation is a privately-held, leading manufacturer of water- and energy-conservation products & services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchMississauga, ON, CanadaHQ recorded Sep 22, 202611-5080 contacts →

Exact match

“We deliver solutions for our clients because we listen to their needs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchDavis, CA, United StatesHQ recorded Sep 22, 202651-20079 contacts →

Exact match

“Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California, with offices in Berkeley, Yreka, Santa Monica, Ventura, San Diego, and Seattle, WA.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchMilano, ItalyHQ recorded Sep 22, 202651-20074 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchMinato-ku, JapanHQ recorded Sep 22, 20261,001-5,00073 contacts →

Exact match

“Water and Environmental Consultancy and Software Services Life is unsustainable without access to reliable water source and humans are threatened by climate change, altering…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchSantiago, ChileHQ recorded Sep 22, 202651-20073 contacts →

Exact match

“Somos consultores en Ciencias de la Tierra, especialistas en recursos hídricos y minerales en fase acuosa.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 1,696 water efficiency consultants worldwide

See the full list, filter by size, metro and specialty, and access 8,354 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water efficiency consultants worldwide at a glance

As of Sep 22, 2026
35.4%Verified-email coverage
13.9Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Sao Paulo
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
1,106
11-50
449
51-200
98
201-500
18
501-1,000
5
1,001-5,000
8
5,001-10,000
2

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 efficiency consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “water efficiency 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 8,354 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 22, 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 efficiency consultants by location

10 lists · largest first

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

How many water efficiency consultants are there worldwide?

RevenueBase identified 1,696 company matches for water efficiency consultants 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?

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

Which country has the most water efficiency consultants?

The United States leads with 390 companies, followed by Brazil (116) and the United Kingdom (96). Every water efficiency consultants list by country and city is linked on this page.

Which city has the most water efficiency consultants?

Sao Paulo leads with 20 company records, followed by Santiago (13) and Madrid (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 8,354 professional contacts with verified work emails tracked across these 1,696 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 22, 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.