Company lists · Data refreshed September 2026

Top 25 Groundwater research facilities worldwide

RevenueBase identified 734 groundwater research facilities worldwide as of September 2026 and tracks 8,801 professional contacts across them, including 2,995 with verified work emails. The United States is the largest market and Belo Horizonte the largest hub.

This list covers groundwater research facilities 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 20, 2026. Country and city lists for groundwater research facilities 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 20, 2026 86% judged on-target in blind review
734Companies
8,801Contacts tracked
2,995Verified emails
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The 25 largest groundwater research facilities worldwide

Ranked by team size
Top 25 of 734 groundwater research facilities worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to groundwater research facilities: 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
1Indirect evidenceHørsholm, DenmarkHQ checked Sep 20, 20261,001-5,0001,427 contacts →

Indirect evidence

“There is no substitute for water.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceDelft, NetherlandsHQ checked Sep 20, 2026501-1,0001,021 contacts →

Partial evidence

“Deltares is an independent knowledge institute for applied research in the field of water and subsurface.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceOslo, NorwayHQ checked Sep 20, 2026201-500418 contacts →

Partial evidence

“NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceOslo, NorwayHQ checked Sep 20, 2026201-500322 contacts →

Partial evidence

“NIVA's main focus areas are research, environmental monitoring, assessment, consultancy and problem solving in support of decision makers in both the public and private sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 20, 202651-200147 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceCalgary, AB, CanadaHQ checked Sep 20, 202651-200108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceGlimmen, NetherlandsHQ checked Sep 20, 202651-200101 contacts →

Indirect evidence

“WLN is een onafhankelijk partner in onderzoek en advies voor drink, industrie- en afvalwater.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceSugar Land, TX, United StatesHQ checked Sep 20, 2026201-50092 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceAlbuquerque, NM, United StatesHQ checked Sep 20, 202651-20092 contacts →

Indirect evidence

“Daniel B.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceBelgrade, SerbiaHQ checked Sep 20, 2026201-50089 contacts →

Partial evidence

“Jaroslav Černi Water Institute is the leading scientific research organization in Serbia and the region in the field of water, which, besides the research, deals with design…”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceHaren, GermanyHQ checked Sep 20, 2026501-1,00088 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceGildehaus, GermanyHQ checked Sep 20, 202651-20087 contacts →

Indirect evidence

“Wij zorgen voor droge voeten!”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceGirona, SpainHQ checked Sep 20, 202651-20085 contacts →

Partial evidence

“We welcome you to the Catalan Institute for Water Research (ICRA-CERCA).”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 20, 202651-20084 contacts →

Indirect evidence

“Water Services and Technologies is a company specialized in hydrogeology and environmental services, which values technical quality, safety and excellence, always seeking to…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceDavis, CA, United StatesHQ checked Sep 20, 202651-20079 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceSantiago, ChileHQ checked Sep 20, 202651-20073 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidencePortland, OR, United StatesHQ checked Sep 20, 202651-20066 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceKings Langley, United KingdomHQ checked Sep 20, 202651-20065 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 20, 202651-20063 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 20, 2026501-1,00058 contacts →

Indirect evidence

“We are one of the companies within Al Mousa Group, a Saudi Arabian conglomerate with over 50 years of experience in the Saudi market.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceTampere, FinlandHQ checked Sep 20, 202651-20052 contacts →

Indirect evidence

“KVVY Tutkimus Oy on kotimainen ja yhteiskunnallinen ympäristötutkimusten, vesienhallinnan suunnittelun ja laboratoriopalveluiden ammattilainen.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceMuseros, SpainHQ checked Sep 20, 202611-5051 contacts →

Indirect evidence

“Se cumplen los 100 años de experiencia que avalan la trayectoria ininterrumpida de FERRER®, que inició su andadura empresarial en 1916 cuando D.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidencePretoria, South AfricaHQ checked Sep 20, 202611-5050 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceLas Condes, ChileHQ checked Sep 20, 202651-20050 contacts →

Indirect evidence

“AguaEx Geociencias is a specialist solution provider in the areas of geology, geochemistry, geophysics and hydraulic testing.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceBowen Hills, AustraliaHQ checked Sep 20, 202611-5048 contacts →

Partial evidence

“We are Australia’s specialist groundwater consultancy.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 734 groundwater research facilities worldwide

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Groundwater research facilities worldwide at a glance

As of Sep 20, 2026
34.0%Verified-email coverage
12.0Average contacts per company
1-10Median size (employees)
0.7%Largest-city concentration · Belo Horizonte
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
443
11-50
209
51-200
59
201-500
11
501-1,000
5
1,001-5,000
2
5,001-10,000
1

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 groundwater research facilities, 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 groundwater research facilities are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “groundwater research facilities”. 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 groundwater research facilities), 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 groundwater research facilities, 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, 2,995 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 20, 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.

Groundwater research facilities by location

8 lists · largest first

Every Groundwater research facilities 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 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 groundwater research facilities, 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 groundwater research facilities are there worldwide?

RevenueBase identified 734 groundwater research facilities 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?

DHI, headquartered in Horsholm, tops this list with the largest team on record.

Which country has the most groundwater research facilities?

The United States leads with 114 companies, followed by Brazil (45) and Germany (45). Every groundwater research facilities list by country and city is linked on this page.

Which city has the most groundwater research facilities?

Belo Horizonte leads with 5 headquartered companies, followed by Berlin (5) and Melbourne (5).

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 2,995 verified decision-maker contacts tracked across these 734 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 20, 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.