Company lists · Data refreshed September 2026
Top 25 Groundwater protection services worldwide
RevenueBase identified 736 groundwater protection services worldwide as of September 2026 and tracks 5,563 professional contacts across them, including 2,298 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers groundwater protection services 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 protection services 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.
The 25 largest groundwater protection services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 201 contacts → | ||||
Indirect evidence “A GEOAMBIENTE Geologia e Engenharia Ambiental atua no Gerenciamento de Áreas Contaminadas provendo soluções em Diagnóstico de Passivos Ambientais e Remediação de Solo e Água…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 136 contacts → | ||||
Indirect evidence “OUR MISSION is to combine sustainable environmental solutions with forward-thinking, cost-effective, innovative, and value-added technologies that balance our clients’ economic…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 129 contacts → | ||||
Indirect evidence “Ensero Solutions is an environmental consulting and remediation business with specific expertise in environmental assessments and permitting solutions, mine water management…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 108 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 102 contacts → | ||||
Indirect evidence “Desafios ambientais complexos exigem conhecimento embasado, ciência aplicada e execução precisa.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 96 contacts → | ||||
Indirect evidence “EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 92 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 88 contacts → | ||||
Indirect evidence “Water has been our passion for more than 60 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 87 contacts → | ||||
Partial evidence “For more than four decades, HydroCorp has been dedicated to protecting piping infrastructure, ensuring safe drinking water, and supporting regulatory compliance across industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 87 contacts → | ||||
Indirect evidence “Wij zorgen voor droge voeten!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 85 contacts → | ||||
Partial evidence “We provide excellent water and flood protection services to enhance the quality of life, economic vitality and environmental health of the communities we serve.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 82 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 79 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 73 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 66 contacts → | ||||
Partial evidence “GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 65 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 56 contacts → | ||||
Indirect evidence “Authentic relationships are standard practice at Weisinger Incorporated.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 51 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 50 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 49 contacts → | ||||
Indirect evidence “EESI Group, a leader in brown environment consulting, serves the mining, waste & landfill, urban development, and farming sectors across Australia and the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 48 contacts → | ||||
Partial evidence “We are Australia’s specialist groundwater consultancy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 45 contacts → | ||||
Indirect evidence “S.S.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 43 contacts → | ||||
Partial evidence “The National Ground Water Association is the hallmark organization for anyone affiliated with the groundwater industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Partial evidence “Clear Creek Associates, a hydrogeological consulting company, was started in September to provide a very high level of expertise in groundwater science.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 42 contacts → | ||||
Indirect evidence “WES, como empresa consultora dedicada a brindar servicios especializados en agua superficial, subterránea y estudios ambientales, comprende que a partir de su trabajo fomenta en…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: groundwater protection services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names groundwater protection services.
- Partial evidence
- Its own public description names part of groundwater protection services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name groundwater protection services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 736 groundwater protection services worldwide
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Groundwater protection services worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 protection services, 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 protection services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “groundwater protection services”. 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 protection services), 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 protection services, 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, 2,298 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 protection services by location
10 lists · largest firstEvery Groundwater protection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Groundwater protection services based in the United States214
- Groundwater protection services based in Italy54
- Groundwater protection services based in Brazil50
- Groundwater protection services based in Germany48
- Groundwater protection services based in Canada42
- Groundwater protection services based in the United Kingdom38
- Groundwater protection services based in Spain37
- Groundwater protection services based in the Netherlands36
- Groundwater protection services based in Australia32
- Groundwater protection services based in France27
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 protection services, 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 protection services are there worldwide?
RevenueBase identified 736 groundwater protection services 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?
Geoambiente Geologia E Engenharia Ambiental, headquartered in Fazenda Rio Grande, tops this list with the largest team on record.
Which country has the most groundwater protection services?
The United States leads with 214 companies, followed by Italy (54) and Brazil (50). Every groundwater protection services list by country and city is linked on this page.
Which city has the most groundwater protection services?
Sao Paulo leads with 8 headquartered companies, followed by Berlin (6) and Calgary (4).
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 2,298 verified decision-maker contacts tracked across these 736 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.