Company lists · Data refreshed September 2026

Top 25 Wastewater treatment biotechnology companies based in Switzerland

Name: Wastewater treatment biotechnology companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 72 companies tracked

RevenueBase identified 72 wastewater treatment biotechnology companies headquartered in Switzerland as of September 2026 and tracks 562 professional contacts across them, including 191 with verified work emails. Cham is the largest hub.

This list covers wastewater treatment biotechnology companies headquartered in Switzerland, 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 19, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

72Companies

562Contacts tracked

191Verified emails

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The 25 largest wastewater treatment biotechnology companies based in Switzerland

Ranked by team size

Top 25 of 72 wastewater treatment biotechnology companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment biotechnology companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Ecolutia Services	Partial evidence	St Gallen, SwitzerlandHQ checked Sep 19, 2026	51-200	56 contacts →
	Partial evidence “Provider of outsourced and mobile water treatment for power, energy, mining and other industrial sectors globally.” Source: RevenueBase Database · checked Sep 19, 2026
2	Mecana AG	Indirect evidence	Reichenburg, SwitzerlandHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “We are leaders on field of pile cloth media filtration technology mostly connected to waste water applications like tertiary filtration, primary filtration, removal of…” Source: RevenueBase Database · checked Sep 19, 2026
3	Treatech	Indirect evidence	Lonay, SwitzerlandHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “TreaTech is a Swiss Cleantech company founded in 2015 by EPFL engineers.” Source: RevenueBase Database · checked Sep 19, 2026
4	SPE Tech AG	Indirect evidence	Frauenkappelen, SwitzerlandHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Die SH+E GROUP bietet Planung, Bau und Service von Anlagen zur Behandlung von Wasser und Abwasser in Kommunen und der Industrie inklusive von Ver- und Entsorgungssystemen.” Source: RevenueBase Database · checked Sep 19, 2026
5	Membratec SA	Partial evidence	Sierre, SwitzerlandHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Water treatment through membrane filtration process” Source: RevenueBase Database · checked Sep 19, 2026
6	Romag Aquacare AG	Indirect evidence	Düdingen, SwitzerlandHQ checked Sep 19, 2026	51-200	16 contacts →
	Indirect evidence “Wherever people drink and pollute water, we provide solutions.” Source: RevenueBase Database · checked Sep 19, 2026
7	Prorheno AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Die ProRheno AG reinigt seit 1982 die Abwässer von Haushalten, Gewerbebetrieben und Industrie aus der Region Basel.” Source: RevenueBase Database · checked Sep 19, 2026
8	Burkhalter Wassertechnik AG	Indirect evidence	Worblaufen, SwitzerlandHQ checked Sep 19, 2026	51-200	14 contacts →
	Indirect evidence “Die Wasseraufbereitungstechnik ist unsere Kernkompetenz – und das seit 1975.” Source: RevenueBase Database · checked Sep 19, 2026
9	Alpha Wassertechnik AG	Indirect evidence	Nidau, SwitzerlandHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “ALPHA WasserTechnik AG est une société suisse active, depuis 1960, dans la conception, la construction et la commercialisation d’installations de traitement d’eaux usées urbaines…” Source: RevenueBase Database · checked Sep 19, 2026
10	Färber & Schmid Group	Indirect evidence	Rafz, SwitzerlandHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Färber & Schmid bietet als Produzent und Formulierer von Spezialchemikalien für die industrielle Wasser- und Abwasserbehandlung, Farben und Lackindustrie sowie im Bereich…” Source: RevenueBase Database · checked Sep 19, 2026
11	Rheno AG	Indirect evidence	Dietikon, SwitzerlandHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Rheno Umwelttechnik AG is an environmental services company based out of 15 Giessenstrasse, Schlieren, Zurich, Switzerland.” Source: RevenueBase Database · checked Sep 19, 2026
12	Frei Aquaservice AG	Indirect evidence	Aesch (basel-land), SwitzerlandHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Das Leistungsangebot der Frei AquaService AG umfasst alle gängigen Technologien der Wasseraufbereitung.” Source: RevenueBase Database · checked Sep 19, 2026
13	United Waters International AG	Indirect evidence	Zug, SwitzerlandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “UWI has developed and patented a pioneering, award-winning and cost-efficient biological drinking water purification technology in 20’ and 40’ foot containerised systems under the…” Source: RevenueBase Database · checked Sep 19, 2026
14	Aquaren Gmbh	Indirect evidence	Obergerlafingen, SwitzerlandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Die Aquaren GmbH steht für innovative und nachhaltige ökologische Lösungen im Bereich der Frisch- und Abwasseraufbereitung.” Source: RevenueBase Database · checked Sep 19, 2026
15	W. Frei AG Klingnau	Indirect evidence	Klingnau, SwitzerlandHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Kläranlagen-Ausrüstungen: Hebewerke, Rechenanlagen, Sandwaschanlagen, Brückenräumer, Kettenräumer, Belüftung und Biologie, Schlamm-Entwässerungspressen, Gasanlagen, Metallbau.” Source: RevenueBase Database · checked Sep 19, 2026
16	Aquaswiss System	Indirect evidence	Plan Les Ouates, SwitzerlandHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “La société AquaSwiss System basée à Genève, s’est spécialisée dans la recherche et la commercialisation de technologies et systèmes innovant dans le traitement de l’eau, avec pour…” Source: RevenueBase Database · checked Sep 19, 2026
17	ARA Rhein AG	Indirect evidence	Pratteln, SwitzerlandHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Purified Water in our Region.” Source: RevenueBase Database · checked Sep 19, 2026
18	Bioma SA	Partial evidence	Quartino, SwitzerlandHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Bioma is a Swiss company with more than 30 years of experience, dedicated to research, production and marketing of products that promote bioremediation (sustainable treatment…” Source: RevenueBase Database · checked Sep 19, 2026
19	Upwater AG	Strong evidence	Dübendorf, SwitzerlandHQ checked Sep 19, 2026	1-10	5 contacts →
	Strong evidence “upwater helps wastewater treatment plants better understand and optimize their biological treatment processes.” Source: RevenueBase Database · checked Sep 19, 2026
20	Vunanexus AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “VunaNexus uses a patented technology to transform human and livestock urine into two valuable products: a fertiliser free of all dangerous pollutants and water that can be reused…” Source: RevenueBase Database · checked Sep 19, 2026
21	Prowatech AG	Indirect evidence	Flaach, SwitzerlandHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Marktsegment Der Schwerpunkt der ProWaTech AG ist die Betreuung folgender Marktsegmente, bei denen Prozesswasser benötigt wird und Industrieabwasser anfällt- Oberflächentechnik…” Source: RevenueBase Database · checked Sep 19, 2026
22	Essde Gmbh	Strong evidence	Gommiswald, SwitzerlandHQ checked Sep 19, 2026	1-10	3 contacts →
	Strong evidence “At EssDe, we have developed biologically granular processes for the treatment of industrial and municipal wastewater, which make it possible to optimize conventional wastewater…” Source: RevenueBase Database · checked Sep 19, 2026
23	Burger Engineering AG	Indirect evidence	Burgdorf, SwitzerlandHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Fachplaner und Anlagenbauer für alle Fragen zu Abwasser aus Industrie und Gewerbe.” Source: RevenueBase Database · checked Sep 19, 2026
24	Filtech Entwässerung AG	Indirect evidence	Kreuzlingen, SwitzerlandHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Wir von FILTECH erarbeiten gemeinsam mit unseren Kunden Lösungen im Bereich der Feststoff-Flüssigtrennung.” Source: RevenueBase Database · checked Sep 19, 2026
25	Acque E Chimici SA	Indirect evidence	Paradiso, SwitzerlandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026

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: wastewater treatment biotechnology 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 wastewater treatment biotechnology companies.
Partial evidence: Its own public description names part of wastewater treatment biotechnology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment biotechnology 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 72 wastewater treatment biotechnology companies based in Switzerland

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Wastewater treatment biotechnology companies based in Switzerland at a glance

As of Sep 19, 2026

34.0%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · Cham

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 72 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 wastewater treatment biotechnology 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 Switzerland whose own description of what they do matches “wastewater treatment biotechnology 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 wastewater treatment biotechnology 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 wastewater treatment biotechnology companies, and records with no verified work email. Companies headquartered outside Switzerland 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, 191 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 19, 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 wastewater treatment biotechnology 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 wastewater treatment biotechnology companies are there based in Switzerland?

RevenueBase identified 72 wastewater treatment biotechnology companies headquartered in Switzerland 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?

Ecolutia Services, headquartered in St Gallen, tops this list with the largest team on record.

Which city has the most wastewater treatment biotechnology companies?

Cham leads with 2 headquartered companies, followed by Dubendorf (2) and Flaach (2).

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 191 verified decision-maker contacts tracked across these 72 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 19, 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.