Company lists · Data refreshed September 2026
Top 25 Irrigation authorities worldwide
RevenueBase identified 1,156 irrigation authorities worldwide as of September 2026 and tracks 58,738 professional contacts across them, including 18,539 with verified work emails. The United States is the largest market and Bakersfield the largest hub.
This list covers irrigation authorities 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 irrigation authorities 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 irrigation authorities worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,828 contacts → | ||||
Indirect evidence “We’re the principal supplier of water, wastewater and drainage services in Western Australia to hundreds of thousands of homes, businesses and farms, as well as providing bulk…” Source: RevenueBase Database · checked Sep 20, 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 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,543 contacts → | ||||
Indirect evidence “The Metropolitan Water District of Southern California is a cooperative of 26 cities and water agencies serving nearly 19 million people in six counties.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,402 contacts → | ||||
Indirect evidence “The Water Utilities Corporation (WUC) is a parastatal organisation, wholly owned by the Botswana Government.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 949 contacts → | ||||
Indirect evidence “Valley Water manages an integrated water resources system that includes the supply of clean, safe water, flood protection and stewardship of streams on behalf of Santa Clara…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 922 contacts → | ||||
Indirect evidence “Hoogheemraadschap Hollands Noorderkwartier maakt wonen en werken onder zeeniveau mogelijk in het laaggelegen Noord-Holland.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 913 contacts → | ||||
Indirect evidence “Seqwater – Supplying safe, secure and cost-effective bulk drinking water to South East Queenslanders Seqwater is the Queensland Government statutory authority responsible for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 827 contacts → | ||||
Indirect evidence “At WaterNSW we are custodians of the state’s water, a vital natural resource.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 814 contacts → | ||||
Indirect evidence “Da oltre un secolo portiamo acqua di qualità, un bene prezioso per la vita e lo sviluppo del territorio, a milioni di persone.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 693 contacts → | ||||
Indirect evidence “Delfland is een van de waterschappen van Nederland.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 675 contacts → | ||||
Indirect evidence “We leven samen in een land dat voor een deel onder de zeespiegel ligt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 654 contacts → | ||||
Indirect evidence “Waterschap Hollandse Delta beschermt de Zuid-Hollandse Eilanden tegen wateroverlast, beheert het oppervlaktewater, zuivert het afvalwater, beheert de (vaar)wegen en levert een…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 649 contacts → | ||||
Indirect evidence “Sunwater is a water solutions and service provider delivering the most essential of resources in regional communities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 620 contacts → | ||||
Indirect evidence “Als waterschap zorgen wij voor sterke dijken en voldoende (schoon) water voor inwoners, agrariërs en bedrijven, in de stad en de natuur.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 589 contacts → | ||||
Indirect evidence “Wij beheren het water in Midden-Brabant.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 546 contacts → | ||||
Indirect evidence “Mekorot is the national water company of Israel, government owned and listed at the Tel Aviv Stock Exchange.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 538 contacts → | ||||
Indirect evidence “Schoon, veilig en voldoende water: dat is onze missie.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 434 contacts → | ||||
Indirect evidence “La empresa público-privada Aigües de Barcelona, Empresa Metropolitana de Gestió del Cicle Integral de l'Aigua, participada en un 70% por Agbar, en un 15% por el Área Metropolitana…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 413 contacts → | ||||
Partial evidence “The Irrigation Association is the leading membership organization for irrigation equipment and system manufacturers, dealers, distributors, designers, consultants, contractors and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 407 contacts → | ||||
Indirect evidence “Waterschap Scheldestromen zorgt voor sterke dijken, veilige plattelandswegen, schoon oppervlaktewater en de juiste hoeveelheid water in de sloot.” 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: irrigation authorities. 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 irrigation authorities.
- Partial evidence
- Its own public description names part of irrigation authorities, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name irrigation authorities. 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 1,156 irrigation authorities worldwide
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Irrigation authorities 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 irrigation authorities, 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 irrigation authorities are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “irrigation authorities”. 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 irrigation authorities), 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 irrigation authorities, 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, 18,539 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.
Irrigation authorities by location
7 lists · largest firstEvery Irrigation authorities list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Irrigation authorities based in the United States289
- Irrigation authorities based in Italy109
- Irrigation authorities based in France92
- Irrigation authorities based in Spain82
- Irrigation authorities based in Australia54
- Irrigation authorities based in Brazil47
- Irrigation authorities based in Germany27
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 irrigation authorities, 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 irrigation authorities are there worldwide?
RevenueBase identified 1,156 irrigation authorities 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?
Water Corporation, headquartered in Leederville, tops this list with the largest team on record.
Which country has the most irrigation authorities?
The United States leads with 289 companies, followed by Italy (109) and France (92). Every irrigation authorities list by country and city is linked on this page.
Which city has the most irrigation authorities?
Bakersfield leads with 6 headquartered companies, followed by Fresno (6) and Madrid (6).
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 18,539 verified decision-maker contacts tracked across these 1,156 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.