Company lists · Data refreshed November 2026

Top 25 Wastewater engineering contractors based in Switzerland

RevenueBase identified 109 company matches for wastewater engineering contractors associated with Switzerland as of November 2026 and tracks 968 professional contacts across them, including 377 with verified work emails. Zurich is the largest hub.

This list covers company matches for wastewater engineering contractors associated with Switzerland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
109Companies
968Contacts tracked
377Verified emails
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The 25 largest wastewater engineering contractors based in Switzerland

Ranked by team size
Top 25 of 109 company matches for wastewater engineering contractors based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJona, SwitzerlandHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Häny is an expert system provider of advanced, innovative and reliable pump solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGivisiez, SwitzerlandHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“SINEF SA propose des services et des conseils dans les domaines de l’eau et de l'énergie pour les collectivités ainsi que pour les particuliers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPetit Lancy, SwitzerlandHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Depuis 1969, le bureau zs ingénieurs civils est spécialisé dans la conception et réalisation de projets d’ingénierie civile.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchUznach, SwitzerlandHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“GEBÜNDELTES FACHWISSEN FÜR BAU, WASSER UND UMWELT Unter aktivem Einsatz der zweiten und dritten Generation der Inhaberfamilie bietet die KUSTER+HAGER Gruppe dank ihren…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVésenaz, SwitzerlandHQ recorded Nov 6, 202651-20026 contacts →

Exact match

“Fondée à Genève en 1961, Troger SA couvre l’ensemble des métiers de la gestion de l’eau et du gaz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWinterthur, SwitzerlandHQ recorded Nov 6, 20261,001-5,00024 contacts →

Exact match

“Die Kanalservice Gruppe (KSG) ist ein schnell wachsender und führender Komplettanbieter im Bereich der Instandhaltung von kritischen Infrastrukturen in Europa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWinterthur, SwitzerlandHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“We build ready-to-use treatment plants for drinking water and wastewater.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSarmenstorf, SwitzerlandHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Wir sorgen dafür, dass alles dorthin fliesst, wo es soll – sicher und ohne Verluste.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCham, SwitzerlandHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Die Heusser Water Solutions AG steht für Innovationskraft auf der soliden Grundlage jahrelanger Erfahrung, starker Partner und erprobten Technologien.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBuchs, SwitzerlandHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“K.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFrauenkappelen, SwitzerlandHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBasel, SwitzerlandHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Die ProRheno AG reinigt seit 1982 die Abwässer von Haushalten, Gewerbebetrieben und Industrie aus der Region Basel.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAarau, SwitzerlandHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“For more than 100 years, Waldburger Ingenieure AG and its predecessor companies have been heavily involved in urban water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLuzern, SwitzerlandHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Anspruchsvolle Bauwerke sind unser Antrieb.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCham, SwitzerlandHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Seit 1954 besteht das Unternehmen, das einst von der Familie Walter Fretz gegründet wurde.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVuadens, SwitzerlandHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Hubert Etter et Fils SA est spécialisé dans l'entretien de canalisations, la démolition à l'eau, l'aspiration et le refoulement, le service de bennes, les WC mobiles et la gestion…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWettingen, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Mit unseren Unternehmen sind wir Profis rund um den Unterhalt und die Sanierung von Kanalisationen, der Reinigung und Instandhaltung von Flächen sowie der Reinigung von…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchOensingen, SwitzerlandHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“Willkommen bei KFS Kanal-Service AG!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCarouge, SwitzerlandHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Bert’Eau SA – Bureau d’Étude – Maîtrise Fédérale Depuis 1980, Bert’Eau SA accompagne les particuliers et les professionnels dans la réalisation d’installations sanitaires…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchUster, SwitzerlandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Unsere Kerndisziplin ist die Wasserversorgung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchObergerlafingen, SwitzerlandHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Aquaren GmbH develops and implements innovative solutions for industrial water treatment and wastewater treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSolothurn, SwitzerlandHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Die Emch+Berger AG Solothurn ist ein Unternehmen der 1953 gegründeten Emch+Berger Gruppe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBalgach, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBex, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSt.gallen, SwitzerlandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Die ASA-Service AG ist ein führender Ostschweizer Anbieter für folgende Bereiche:Kanal- und Rohrreinigung / Mobiltoiletten-Service / Container-Service / PE-VorfabrikationKanal-…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 109 wastewater engineering contractors based in Switzerland

See the full list, filter by size, metro and specialty, and access 377 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater engineering contractors based in Switzerland at a glance

As of Nov 6, 2026
38.9%Verified-email coverage
8.9Average contacts per company
11-50Median size (employees)
5.5%Largest-city concentration · Zurich
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
43
51-200
14
1,001-5,000
2

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 109 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Switzerland whose business descriptions match “wastewater engineering contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 377 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering contractors are there based in Switzerland?

RevenueBase identified 109 company matches for wastewater engineering contractors associated with Switzerland as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Häny AG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater engineering contractors?

Zurich leads with 6 company records, followed by Bern (3) and Cham (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 377 professional contacts with verified work emails tracked across these 109 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.