Company lists · Data refreshed September 2026
Top 25 Water and sanitation companies based in Belgium
RevenueBase identified 61 water and sanitation companies headquartered in Belgium as of September 2026 and tracks 5,208 professional contacts across them, including 3,022 with verified work emails. Antwerpen is the largest hub.
This list covers water and sanitation companies headquartered in Belgium, 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 22, 2026.
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 water and sanitation companies based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 920 contacts → | ||||
Indirect evidence “Aquafin is in 1990 opgericht door het Vlaamse Gewest om de rioolwaterzuiveringsinfrastructuur in Vlaanderen verder uit te bouwen, te exploiteren en te financieren.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 728 contacts → | ||||
Indirect evidence “De Watergroep is het grootste drinkwaterbedrijf in Vlaanderen.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 544 contacts → | ||||
Indirect evidence “La Société Wallonne des Eaux (SWDE) est la plus importante société de production et distribution d’eau en Wallonie.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 390 contacts → | ||||
Indirect evidence “Maatschappelijke zetel: Stropstraat 1 - Gent - ondernemingsnummer (KBO): BE 0200.068.636 Activiteit: Leveren van drinkwater - saneren van afvalwater - bouwen en renoveren van…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 169 contacts → | ||||
Indirect evidence “La Compagnie Intercommunale Liégeoise des Eaux produit et distribue l'eau potable en région liégeoise pour desservir près de habitants répartis sur 24 communes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 128 contacts → | ||||
Indirect evidence “Société coopérative à responsabilité limitée, créée en 1978, l'Intercommunale Namuroise de Services Publics (INASEP) regroupe 38 communes de la Province de Namur, toutes affiliées…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 125 contacts → | ||||
Partial evidence “Ekopak provides innovative solutions for industrial water treatment and wastewater treatment.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 117 contacts → | ||||
Partial evidence “expertise in drinking water transportation, drinking water distribution and waste water solutions water in specific quality on demand expertise on domestic water-installation…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 111 contacts → | ||||
Partial evidence “GLOBAL WATER & ENERGY (GWE) is a full solution provider to the global marketplace for industrial water and wastewater treatment, water reuse, biomass digestion, sludge, and slurry…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 94 contacts → | ||||
Partial evidence “AWW en TMVW, partners onder de naam water-link, zijn twee van de grootste drinkwaterbedrijven in Vlaanderen.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 45 contacts → | ||||
Indirect evidence “La Société Publique de Gestion de l'Eau (SPGE) est une société anonyme de droit public mise en place par la Région wallonne en Sa mission essentielle est d'assurer la coordination…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 44 contacts → | ||||
Partial evidence “The Pollet Water Group is a worldwide water specialist, offering products, solutions and brands for the home market, hospitality, commercial buildings and industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 35 contacts → | ||||
Indirect evidence “Le CEBEDEAU est spécialisé dans la gestion et le traitement (par voie biologique et/ou physicochimique) des eaux usées, tant domestiques qu’industrielles.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 34 contacts → | ||||
Partial evidence “As the global water technology experts, we deliver on both performance and sustainability without compromise.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Partial evidence “BOSAQ is a circular water company with a mission to develop and build innovative solutions to secure process and drinking water worldwide in a circular and socially responsible…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 20 contacts → | ||||
Indirect evidence “Welcome to the AAQUA page!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Indirect evidence “Aquaduin (IWVA ov) verzorgt de productie en distributie aan de gemeenten Alveringem, De Panne, Koksijde, Nieuwpoort, Veurne en enkele deelgemeenten van Diksmuide (Lampernisse…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Partial evidence “Water is schaars in Vlaanderen.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Partial evidence “Water company” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Partial evidence “For more than 30 years, The Water Purifier is an expert in bottling drinking water.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Partial evidence “Revalio is a sustainable water company based in Belgium, delivering circular solutions to industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “Ateliers de Construction de Herstal SA is a mechanical construction company based out of En Hayeneux 148, HERSTAL, Belgium.” Source: RevenueBase Database · checked Sep 22, 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: water and sanitation 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 water and sanitation companies.
- Partial evidence
- Its own public description names part of water and sanitation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water and sanitation 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 61 water and sanitation companies based in Belgium
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Water and sanitation companies based in Belgium at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 61 companies.
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 water and sanitation 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.
- What qualifies
- Companies headquartered in Belgium whose own description of what they do matches “water and sanitation 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 water and sanitation 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 water and sanitation companies, and records with no verified work email. Companies headquartered outside Belgium are excluded even when they keep an office there.
- 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, 3,022 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 22, 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.
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 water and sanitation 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 water and sanitation companies are there based in Belgium?
RevenueBase identified 61 water and sanitation companies headquartered in Belgium 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?
Aquafin, headquartered in Aartselaar, tops this list with the largest team on record.
Which city has the most water and sanitation companies?
Antwerpen leads with 4 headquartered companies, followed by Gent (4) and Verviers (3).
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 3,022 verified decision-maker contacts tracked across these 61 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 22, 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.
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