Company lists · Data refreshed November 2026

Top 25 Groundwater pump testing services worldwide

RevenueBase identified 536 company matches for groundwater pump testing services worldwide as of November 2026 and tracks 3,050 professional contacts across them, including 738 with verified work emails. The United States is the largest market and Johannesburg the largest hub.

This list covers company matches for groundwater pump testing 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 pump testing 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
536Companies
3,050Contacts tracked
738Verified emails
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The 25 largest groundwater pump testing services worldwide

Ranked by team size
Top 25 of 536 company matches for groundwater pump testing 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 matchAuburn Hills, MI, United StatesHQ recorded Nov 6, 2026501-1,000229 contacts →

Exact match

“For 36 years, Mersino has been trusted with the most complex water management challenges in the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“Part of WJ Group, WJ Middle East leads the field in design, installation, and maintenance of dewatering systems for construction sites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact matchZone 40, QatarHQ recorded Nov 6, 2026201-50080 contacts →

Exact match

“Hydroserv International is a leading name in the MENA region in dewatering, groundwater control, remediation, drilling, centrifugal pumps & specialized pumping services for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact matchJeddah, Saudi ArabiaHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“About Part of the WJ Group, WJ Saudi leads the field in design, installation, and maintenance of dewatering systems for construction sites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKontich, BelgiumHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“AGT-Advanced Groundwater Techniques specializes in applied groundwater techniques.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“WellTech is a dewatering and ground engineering company, providing effective dewatering solutions, established since 2013, as Freezone Company initially and later as Dubai…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Howard Drilling has the experience and the knowledge to provide comprehensive groundwater construction services to meet the specific needs and requirements of our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSebastopol, CA, UkraineHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“As one of the largest groundwater firms in the state, Weeks Drilling & Pump Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSlagelse, DenmarkHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“At RH Pumps, we specialize in reliable, environmentally friendly, and quiet over-pumping.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchConcord, ON, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Atlas Dewatering Corporation, established in 1946, has over seventy-five years of experience in the construction dewatering and environmental groundwater/surface water management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDurham, United KingdomHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“OGI has more than 30 years of experience in providing groundwater related services to clients and contractors in the United Kingdom and abroad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWest Sacramento, CA, United StatesHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Viking Drillers, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMumbai, IndiaHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Strong Plant is a highly reputable company in the field of design, dewatering, piling and accessories for the last 60 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchShropham, United KingdomHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Stuart Wells is a specialist dewatering and groundwater management contractor, providing technically focused and cost-effective solutions to complex water management challenges…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCamp Verde, AZ, United StatesHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“We are a water well drilling and pump company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGuelph, ON, CanadaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Engineering Groundwater.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchUnited StatesHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Bronbemaling.com is dé specialist in grondwaterbeheersing en de grootste bronbemaler van Nederland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRock Tavern, VA, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Subsurface Technologies, Inc provides standard and specialized groundwater services to the municipal, industrial, residential and investor owned water utility markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAlkmaar, NetherlandsHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Theo van Velzen Bij Theo van Velzen Grondboortechniek & Bronbemaling weten we van aanpakken.”

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

Showing 25 of 536 groundwater pump testing services worldwide

See the full list, filter by size, metro and specialty, and access 738 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Groundwater pump testing services worldwide at a glance

As of Nov 6, 2026
24.2%Verified-email coverage
5.7Average contacts per company
1-10Median size (employees)
0.7%Largest-city concentration · Johannesburg
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
299
11-50
159
51-200
51
201-500
11
501-1,000
2
1,001-5,000
1
5,001-10,000
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 pump testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “groundwater pump testing 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 738 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 pump testing services by location

2 lists · largest first

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

How many groundwater pump testing services are there worldwide?

RevenueBase identified 536 company matches for groundwater pump testing 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?

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

Which country has the most groundwater pump testing services?

The United States leads with 204 companies, followed by Canada (28). Every groundwater pump testing services list by country and city is linked on this page.

Which city has the most groundwater pump testing services?

Johannesburg leads with 4 company records, followed by Dubai (3) and Gurgaon (3).

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 738 professional contacts with verified work emails tracked across these 536 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.