Company lists · Data refreshed September 2026
Top 25 Reservoir management companies worldwide
RevenueBase identified 389 reservoir management companies worldwide as of September 2026 and tracks 18,682 professional contacts across them, including 6,431 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers reservoir management companies 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 21, 2026. Country and city lists for reservoir management companies 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 reservoir management companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,627 contacts → | ||||
Indirect evidence “Water is overal om ons heen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,553 contacts → | ||||
Indirect evidence “Nuestra gestión se sustenta en altos estándares de profesionalismo y experiencia que nos permite entregar un servicio de gran calidad, cautelando la sostenibilidad de los recursos…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,395 contacts → | ||||
Indirect evidence “Aqualia es la cuarta empresa de gestión del agua de Europa y la novena del Mundo por población servida, según el último ranking de Global Water Intelligence (diciembre de 2024).” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 838 contacts → | ||||
Indirect evidence “Het hoogheemraadschap van Rijnland is als oudste van de 26 waterschappen in Nederland verantwoordelijk voor schoon water en droge voeten.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 827 contacts → | ||||
Indirect evidence “At WaterNSW we are custodians of the state’s water, a vital natural resource.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 619 contacts → | ||||
Indirect evidence “Waterschap Brabantse Delta zorgt voor veilige dijken en kades, zuivert rioolwater, verbetert en bewaakt de kwaliteit van het oppervlaktewater en regelt de hoogte van het water in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 581 contacts → | ||||
Indirect evidence “Wetterskip Fryslân zorgt voor schoon water én droge voeten in de provincie Fryslân en het Groninger Westerkwartier.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 560 contacts → | ||||
Indirect evidence “Créée en 1891, VIVAQUA figure parmi les plus importants services d'eau de Belgique et fournit chaque jour plus de m³ d'eau à 2,25 millions d'habitants.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 538 contacts → | ||||
Indirect evidence “Schoon, veilig en voldoende water: dat is onze missie.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 446 contacts → | ||||
Indirect evidence “Administraţia Naţională Apele Române are în administrare- 78.905 km cursuri de apă- 295,6 mii ha suprafaţă de teren cu ape- 270 lacuri de acumulare cu un volum total de 14,5…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 401 contacts → | ||||
Indirect evidence “Gruppo CAP è la green utility pubblica che, già gestore del servizio idrico integrato della Città metropolitana di Milano, si è evoluta in una delle principali monoutility…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 394 contacts → | ||||
Indirect evidence “Wij zijn Waterschap Zuiderzeeland.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 349 contacts → | ||||
Indirect evidence “Pidpa, als integrale waterpartner, biedt een ruime waaier van producten en diensten aan: Drinkwatervoorziening In 64 gemeenten van de provincie Antwerpen staat Pidpa garant voor…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 308 contacts → | ||||
Partial evidence “The Water Security Agency is a unique organization in Canada – bringing together the majority of government’s core water management responsibilities in one place.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 305 contacts → | ||||
Indirect evidence “Facsa, empresa ‘origen’ de Nealis, es una referencia en el territorio nacional en la gestión global de los recursos hídricos.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 305 contacts → | ||||
Indirect evidence “I Novafos er vi hverdagsmestre i at håndtere vand – rent vand i hanen, regnvand i byområder og renset spildevand, der ledes sikkert tilbage til naturen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 263 contacts → | ||||
Indirect evidence “Le Syndicat des Eaux et de l'Assainissement construit, entretient, rénove et optimise les installations, d'eau potable et d'assainissement deservant plus de 740 habitants dans…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 195 contacts → | ||||
Indirect evidence “Après 65 ans d'existence, la CACG est officiellement devenue Rives & Eaux du Sud-Ouest.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 142 contacts → | ||||
Indirect evidence “Voda je základem života.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 140 contacts → | ||||
Indirect evidence “Stadtentwässerungsbetriebe Köln, AöR is a government administration company based out of Ostmerheimer Str.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 137 contacts → | ||||
Indirect evidence “Nos équipes s'engagent chaque jour pour les collectivités qui ont choisi de nous confier leur service public de l'eau et de l'assainissement : capter l'eau, la produire, la…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 122 contacts → | ||||
Indirect evidence “Grampians Wimmera Mallee Water (GWMWater) is an innovative and exciting employer that is committed to contributing to the sustainable growth of communities within our region.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 116 contacts → | ||||
Indirect evidence “La Ville de Rennes et la Collectivité Eau du Bassin Rennais (ancien Syndicat Mixte de Production des Eaux du Bassin Rennais [SMPBR]) ont annoncé, en janvier 2013, qu'ils…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 108 contacts → | ||||
Partial evidence “Somos una empresa especializada en Water Management de yacimientos no convencionales de Oil & Gas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 105 contacts → | ||||
Partial evidence “Merced Irrigation District owns, operates and maintains the New Exchequer and McSwain dams, reservoirs, and hydroelectric facilities.” Source: RevenueBase Database · checked Sep 21, 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: reservoir management companies. 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 reservoir management companies.
- Partial evidence
- Its own public description names part of reservoir management companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name reservoir management companies. 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 389 reservoir management companies worldwide
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Reservoir management companies worldwide at a glance
As of Sep 21, 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 reservoir management companies, 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 reservoir management companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “reservoir management companies”. 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 reservoir management companies), 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 reservoir management companies, 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, 6,431 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 21, 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.
Reservoir management companies by location
3 lists · largest firstEvery Reservoir management companies 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 reservoir management companies, 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 reservoir management companies are there worldwide?
RevenueBase identified 389 reservoir management companies 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?
Waternet, headquartered in Amsterdam, tops this list with the largest team on record.
Which country has the most reservoir management companies?
The United States leads with 77 companies, followed by Italy (40) and France (30). Every reservoir management companies list by country and city is linked on this page.
Which city has the most reservoir management companies?
Houston leads with 11 headquartered companies, followed by Midland (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 6,431 verified decision-maker contacts tracked across these 389 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 21, 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.