Company lists · Data refreshed November 2026

Top 25 Groundwater protection services worldwide

RevenueBase identified 614 company matches for groundwater protection services worldwide as of November 2026 and tracks 4,381 professional contacts across them, including 1,740 with verified work emails. The United States is the largest market and Berlin the largest hub.

This list covers company matches for groundwater protection services 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 groundwater protection services 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
614Companies
4,381Contacts tracked
1,740Verified emails
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The 25 largest groundwater protection services worldwide

Ranked by team size
Top 25 of 614 company matches for groundwater protection services 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 matchCalgary, BC, CanadaHQ recorded Nov 6, 202651-200118 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHaren, GermanyHQ recorded Nov 6, 2026501-1,00097 contacts →

Exact match

“Water has been our passion for more than 60 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOrange, CA, United StatesHQ recorded Nov 6, 202611-5095 contacts →

Exact match

“EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSugar Land, TX, United StatesHQ recorded Nov 6, 2026201-50094 contacts →

Exact match

“Hydro Resources specializes in providing the complete solution in the development and maintenance of your groundwater project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGildehaus, GermanyHQ recorded Nov 6, 202651-20093 contacts →

Exact match

“Wij zorgen voor droge voeten!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTroy, MI, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“For more than four decades, HydroCorp has been dedicated to protecting piping infrastructure, ensuring safe drinking water, and supporting regulatory compliance across industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDavis, CA, United StatesHQ recorded Nov 6, 202651-20081 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKitchener, ON, CanadaHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Water Services and Technologies is a provider of leading-edge consulting services and technologies related to groundwater and its interaction with the environment, water resources…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPortland, OR, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKings Langley, United KingdomHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Part of the WJ Group, WJ UK offer a complete groundwater control and management service, which encompasses design, installation and maintenance programmes to businesses throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWillis, TX, United StatesHQ recorded Nov 6, 2026201-50064 contacts →

Exact match

“Authentic relationships are standard practice at Weisinger Incorporated.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Jose, WA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Blaine Tech Services performs environmental sampling and related field services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLakewood, CA, United StatesHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“The Water Replenishment District of Southern California (WRD) is the largest groundwater agency in the State of California, managing and protecting local groundwater resources for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPretoria, South AfricaHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“Since our inception, GPT has focused on delivering tailor-made environmental services, that go beyond the requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBowen Hills, AustraliaHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“We are Australia’s specialist groundwater consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRockville, ON, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“S.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWesterville, OH, United StatesHQ recorded Nov 6, 202611-5044 contacts →

Exact match

“The National Ground Water Association is the hallmark organization for anyone affiliated with the groundwater industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchScottsdale, AZ, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Clear Creek Associates, a hydrogeological consulting company, was started in September to provide a very high level of expertise in groundwater science.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchTucson, AZ, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“GeoSystems Analysis, Inc.(GSA) has pioneered innovative solutions for industry and government since 1994.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Diego, AZ, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Hargis + Associates, Inc.(H+A) is an employee-owned, environmental consulting and engineering firm founded in 1979 with a commitment to providing high-quality, cost-effective…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchZevenbergschen Hoek, NetherlandsHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Tjaden is een gespecialiseerde, in binnen- en buitenland opererende aannemer op het gebied van bronbemaling, boringen, grondwatersystemen en waterbehandelingstechniek.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStellenbosch, South AfricaHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“GEOSS, established on 1 March 2001, specializes in all aspects of hydrogeology, including: • Groundwater exploration (borehole siting, drilling supervision with logging, pumping…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSantiago, ChileHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Desde su fundación en el año 2012 VAI ha hecho su prioridad entender los problemas de sus clientes y proponer soluciones acordes a sus necesidades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNîmes, FranceHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“imaGeau's innovative technology is the answer to better manage our groundwater resources in order to meet in the best possible way the environmental, industrial and regulatory…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCarnegie, AustraliaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Field & Technical Services, LLC (FTS) is a nationwide provider of environmental services including stormwater, groundwater sampling, inspections, systems operations and…”

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

Showing 25 of 614 groundwater protection services worldwide

See the full list, filter by size, metro and specialty, and access 1,740 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Groundwater protection services worldwide at a glance

As of Nov 6, 2026
39.7%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
0.8%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
382
11-50
181
51-200
37
201-500
7
501-1,000
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 groundwater protection services are linked below.
What qualifies
Company records worldwide whose business descriptions match “groundwater protection services” 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 1,740 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.

Groundwater protection services by location

4 lists · largest first

Every Groundwater protection services 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 “groundwater protection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many groundwater protection services are there worldwide?

RevenueBase identified 614 company matches for groundwater protection services 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?

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

Which country has the most groundwater protection services?

The United States leads with 172 companies, followed by Germany (42) and Canada (31). Every groundwater protection services list by country and city is linked on this page.

Which city has the most groundwater protection services?

Berlin leads with 5 company records, followed by Melbourne (5) and Reno (4).

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 1,740 professional contacts with verified work emails tracked across these 614 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.