Company lists · Data refreshed November 2026

Top 25 Wastewater engineering consultants based in Switzerland

RevenueBase identified 146 company matches for wastewater engineering consultants associated with Switzerland as of November 2026 and tracks 2,184 professional contacts across them, including 968 with verified work emails. Aarau is the largest hub.

This list covers company matches for wastewater engineering consultants 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
146Companies
2,184Contacts tracked
968Verified emails
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The 25 largest wastewater engineering consultants based in Switzerland

Ranked by team size
Top 25 of 146 company matches for wastewater engineering consultants 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 matchZurich, SwitzerlandHQ recorded Nov 6, 20261,001-5,000571 contacts →

Exact match

“Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBern 14, SwitzerlandHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

“IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact matchNeuchâtel, SwitzerlandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Mauler SA, bureau d’ingénierie civile et environnementale établi depuis 1950 à Neuchâtel, est spécialisé dans la planification, la conception et la réalisation de projets, il…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRegensdorf, SwitzerlandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“EFP AG Ingenieure Planer Geometer setzen sich für zukunftsgerichtete Ingenieurlösungen ein, die den Bedürfnissen der Nutzerinnen und Nutzer genauso verpflichtet sind wie einem…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBern, SwitzerlandHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Wir sind eine eigenständige Ingenieurunternehmung für Planung, Beratung und Realisierung mit Schwergewicht im Siedlungswasserbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact 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
10Exact 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
11Exact matchMünchenstein, SwitzerlandHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Herzlich willkommen bei HINE – Ihrem führenden Experten für das präzise Planen von verfahrenstechnischen Anlagen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact 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
14Exact 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
15Exact 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
16Exact matchHinwil, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Engineering, Planung, Beratung, Analysen, Bauleitung”

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

Exact match

“MGI ingénieurs SA est un bureau d’ingénieurs conseils en génie-civil et environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchZürich, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Die Eichenberger AG (EAG) erbringt in den nachfolgenden Fachbereichen seit 1940 innovative, breitgefächerte und nachhaltige Dienstleistungen: Allgemeiner Tiefbau- Strassen- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFribourg, SwitzerlandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Depuis 1991, Triform SA accompagne les acteurs publics et privés dans la réussite de leurs projets liés à l’eau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBern, SwitzerlandHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Planer für Sanitärtechnik, Sprinklerplanungen, Medizinalgasanlagen und räumliche Fachkoordination”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchKøbenhavn S, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“ANDERMANN Engineering is a Group that comes from more than 20 years’ experience in civil engineering, in projects that range from building to infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLes Acacias, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Energestion SA est un bureau d'ingénieurs conseils du bâtiment et en industrie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRenens, SwitzerlandHQ recorded Nov 6, 20261,001-5,00012 contacts →

Exact match

“Gruner Stucky Ltd (formerly Stucky Ltd) is amongst the world leaders in design both for construction and rehabilitation of dam & hydropower schemes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCointrin, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Geos Ingénieurs-Conseils SA est un bureau d'ingénieurs conseils spécialisés en génie civil, structures, géotechnique, hydraulique et environnement.”

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

Showing 25 of 146 wastewater engineering consultants based in Switzerland

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Wastewater engineering consultants based in Switzerland at a glance

As of Nov 6, 2026
44.3%Verified-email coverage
15.0Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · Aarau
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
69
11-50
63
51-200
9
201-500
2
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 146 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 consultants” 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 968 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 consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering consultants are there based in Switzerland?

RevenueBase identified 146 company matches for wastewater engineering consultants 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?

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

Which city has the most wastewater engineering consultants?

Aarau leads with 4 company records, followed by Bern (4) and Geneva (4).

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 968 professional contacts with verified work emails tracked across these 146 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.