Company lists · Data refreshed November 2026

Top 25 Water system auditors worldwide

RevenueBase identified 215 company matches for water system auditors worldwide as of November 2026 and tracks 1,535 professional contacts across them, including 390 with verified work emails. The United States is the largest market and Seattle the largest hub.

This list covers company matches for water system auditors 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 system auditors 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
215Companies
1,535Contacts tracked
390Verified emails
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The 25 largest water system auditors worldwide

Ranked by team size
Top 25 of 215 company matches for water system auditors 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 matchElgin, IL, United StatesHQ recorded Nov 6, 2026201-500114 contacts →

Exact match

“Duke’s is a leading provider of environmental services for maintaining and improving the health of underground infrastructure for wastewater, stormwater, water, and utilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHungaryHQ recorded Nov 6, 202651-20062 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchČeské Budějovice, Czech RepublicHQ recorded Nov 6, 2026501-1,00059 contacts →

Exact match

“Provozovatel vodovodů a kanalizací”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBerkel En Rodenrijs, NetherlandsHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“Technolab is de meest ervaren partner als het aankomt op zorgen voor een schone lucht, veilig water en goede materialen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVaudreuil-dorion, QC, CanadaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Oeuvrant exclusivement dans le domaine de la gestion, l’auscultation, le diagnostic et de l’entretien préventif de réseaux de distribution d’eau potable et d’égouts, Aqua Data…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchClinton, MA, United StatesHQ recorded Nov 6, 20261-1029 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchColdspring, TX, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261-1022 contacts →

Exact match

“A ECCOFLUXO tem como foco a Eficiência Energética.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHockenheim, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Wer wir sind?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHouse, AustraliaHQ recorded Nov 6, 2026501-1,00021 contacts →

Exact match

“The AWQC provides a comprehensive range of water and wastewater services including sampling, analysis, advice and research.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMt Jackson, VA, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“For more than 30 years, Inboden Environmental Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,00017 contacts →

Exact match

“At Hach, we ensure water quality for people around the world, and every associate plays a vital role in that mission.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSanteny, FranceHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“CAE, créé en 2004 est un bureau d’étude indépendant, de contrôle, et d’expertise dans le domaine de l’assainissement et de l’environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSacramento, FL, United StatesHQ recorded Nov 6, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKingston, ON, CanadaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Helping Communities, Facilities & Industries Manage Water & Wastewater Systems With 20+ years of experience and support for 400+ systems across Canada, Aureus Solutions provides…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDurban, South AfricaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“At UWS, we believe water analysis is more than a technical requirement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFranceHQ recorded Nov 6, 20261-1013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMattapoisett, MA, United StatesHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“More than 30 years of commitment to the drinking water industry, providing essential maintenance of raw partially treated and finished water infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBuenos Aires, ArgentinaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRound Rock, TX, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Providing access to safe water means there is absolutely no room for error.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchStillwater, OK, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Cove Environmental offers a three-pronged approach for water and wastewater services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKenilworth, NJ, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“ValveTek has been servicing the water utility industry for over 25 years and is a leader in multi-year assessment and rehabilitation programs for water distribution systems in New…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMyersville, MD, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Fredericktowne Labs Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAppleton, WI, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“The Clean Water Center is your one-stop water resource.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Confluence is a world-class drinking water quality firm focused on providing clients exceptional water quality engineering, planning, and applied research services.”

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

Showing 25 of 215 water system auditors worldwide

See the full list, filter by size, metro and specialty, and access 390 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water system auditors worldwide at a glance

As of Nov 6, 2026
25.4%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
1.4%Largest-city concentration · Seattle
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
120
11-50
65
51-200
18
201-500
4
501-1,000
4
1,001-5,000
1

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 system auditors are linked below.
What qualifies
Company records worldwide whose business descriptions match “water system auditors” 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 390 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 system auditors by location

1 lists · largest first

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

How many water system auditors are there worldwide?

RevenueBase identified 215 company matches for water system auditors 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?

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

Which country has the most water system auditors?

The United States leads with 73 companies. Every water system auditors list by country and city is linked on this page.

Which city has the most water system auditors?

Seattle leads with 3 company records, followed by Bogota (2) and Rensselaer (2).

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 390 professional contacts with verified work emails tracked across these 215 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.