Company lists · Data refreshed September 2026
Top 25 Hydrology research institutes worldwide
RevenueBase identified 504 hydrology research institutes worldwide as of September 2026 and tracks 11,215 professional contacts across them, including 2,277 with verified work emails. The United States is the largest market and Barcelona the largest hub.
This list covers hydrology research institutes 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 hydrology research institutes 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 hydrology research institutes worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,427 contacts → | ||||
Indirect evidence “There is no substitute for water.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 695 contacts → | ||||
Strong evidence “The International Water Management Institute (IWMI) is an international, research-for-development organization that works with governments, civil society and the private sector to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 495 contacts → | ||||
Strong evidence “IITM is a premiere research Institute to generate scientific knowledge in the field of meteorology and atmospheric sciences that has potential application in various fields such…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 478 contacts → | ||||
Strong evidence “Eawag is a world-leading aquatic research institute.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 407 contacts → | ||||
Indirect evidence “IHE Delft is the largest international graduate water education facility in the world and is based in Delft, the Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 351 contacts → | ||||
Strong evidence “CSIR- National Environmental Engineering Research Institute is an education management company based out of Nehru Marg, Nagpur, Maharastra, India.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 267 contacts → | ||||
Indirect evidence “Within the domain of the green living environment, we develop knowledge and solutions that contribute to sustainable land and water use, nature restoration and a climate-resilient…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 226 contacts → | ||||
Indirect evidence “KWR generates knowledge to enable the water sector to operate water-wisely in our urbanised society and climate challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 190 contacts → | ||||
Partial evidence “Geochemical Research” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 121 contacts → | ||||
Indirect evidence “A CENTRE OF EXCELLENCE FOR WATER AND ENVIRONMENT PROFESSIONS ENGEES is a school of environmental hydraulics which aims to train engineers who are ready to go straight into the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 89 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 86 contacts → | ||||
Indirect evidence “For over 20 years, we have developed engineering solutions for the most complex environmental challenges in Brazil and around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 86 contacts → | ||||
Indirect evidence “Cwrdm Campus Centre For Water Resources Development is a retail company based out of Kunnamangalam, Kozhikode, Kerala, India.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Strong evidence “We welcome you to the Catalan Institute for Water Research (ICRA-CERCA).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 79 contacts → | ||||
Partial evidence “Wateropleidingen is the leading training institute for water management in the Netherlands and abroad.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 77 contacts → | ||||
Partial evidence “El Instituto IMDEA Agua es una iniciativa de la Comunidad de Madrid para llevar a cabo una labor investigadora de excelencia y para aportar los elementos de innovación necesaria…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 54 contacts → | ||||
Partial evidence “Das IWW Zentrum Wasser spaltet sich in drei Gesellschaften auf: Das IWW Institut für Wasserforschung gGmbH, die IWW Analytik & Services GmbH und die übergeordnete Holding.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 47 contacts → | ||||
Indirect evidence “BWI - which stands for Blue Water Intelligence, was established in June 2022 in Toulouse, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 47 contacts → | ||||
Indirect evidence “IAHR, founded in 1935, is a worldwide independent organisation of engineers and water specialists working in fields related to hydraulics and its practical application.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 45 contacts → | ||||
Partial evidence “CEW is the leading innovative work and learning center for applied research on issues across the entire water cycle.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 42 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 39 contacts → | ||||
Indirect evidence “L'Istituto di Ricerca Sulle Acque del Consiglio Nazionale delle Ricerche svolge attività di ricerca in campo ambientale con focus sulla risorsa acqua.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 39 contacts → | ||||
Strong evidence “Die Bundesanstalt für Gewässerkunde (BfG) ist das wissenschaftliche Institut des Bundes auf den Gebieten der Hydrologie, der Gewässernutzung, der Gewässerbeschaffenheit, der…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 36 contacts → | ||||
Indirect evidence “Climate extremes are reshaping our planet, endangering the natural world and our connection to it.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Indirect evidence “We are committed to the pursuit of sustainable management of water resources through the development and sharing of best practices, capabilities, and knowledge of Australian water…” 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: hydrology research institutes. 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 hydrology research institutes.
- Partial evidence
- Its own public description names part of hydrology research institutes, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydrology research institutes. 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 504 hydrology research institutes worldwide
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Hydrology research institutes 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 hydrology research institutes, 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 hydrology research institutes are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “hydrology research institutes”. 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 hydrology research institutes), 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 hydrology research institutes, 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, 2,277 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.
Hydrology research institutes by location
1 lists · largest firstEvery Hydrology research institutes 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 hydrology research institutes, 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 hydrology research institutes are there worldwide?
RevenueBase identified 504 hydrology research institutes 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 hydrology research institutes?
The United States leads with 77 companies. Every hydrology research institutes list by country and city is linked on this page.
Which city has the most hydrology research institutes?
Barcelona leads with 5 headquartered companies, followed by Pune (5) and Aachen (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 2,277 verified decision-maker contacts tracked across these 504 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.