Company lists · Data refreshed September 2026

Top 17 Industrial hygiene recruiting companies based in Switzerland

RevenueBase identified 39 industrial hygiene recruiting companies headquartered in Switzerland as of September 2026 and tracks 256 professional contacts across them, including 111 with verified work emails. Wallisellen is the largest hub.

This list covers industrial hygiene recruiting 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 28, 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 28, 2026 86% judged on-target in blind review
39Companies
256Contacts tracked
111Verified emails
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The 17 largest industrial hygiene recruiting companies based in Switzerland

Ranked by team size
Top 17 of 39 industrial hygiene recruiting companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industrial hygiene recruiting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWallisellen, SwitzerlandHQ checked Sep 28, 202651-20040 contacts →

Indirect evidence

“Langjährige Erfahrung und Nähe zu aktuellen Entwicklungen in sämtlichen umweltrelevanten Fragestellungen machen Ecosens zum führenden Beratungsunternehmen.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceYverdon-les-bains, SwitzerlandHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Prona Romandie SA provides environmental engineering and health and safety services.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceBasel, SwitzerlandHQ checked Sep 28, 20261-1030 contacts →

Indirect evidence

“We hire specialists for pipeline construction – steel building services and process engineering.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceLuzern, SwitzerlandHQ checked Sep 28, 202651-20029 contacts →

Partial evidence

“collardi is one of the leading staffing companies for technical jobs in the construction and industrial sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceKüttigen, SwitzerlandHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“Wir reinigen und desinfizieren alle luftumspülten Lüftungskomponenten im Einfamilienhaus, Mehrfamilienhaus, Industrie, Pharma- und Verwaltungsgebäude, Restaurant und Hotel.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceBiel, SwitzerlandHQ checked Sep 28, 20261-1011 contacts →

Indirect evidence

“Die Firma toumi ag mit Hauptsitz in Biel-Bienne.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceCarouge, SwitzerlandHQ checked Sep 28, 20261-108 contacts →

Indirect evidence

“TOXpro est une société indépendante d’hygiène du travail constituée à Genève en 2011.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidencePorrentruy, SwitzerlandHQ checked Sep 28, 20261-105 contacts →

Partial evidence

“Votre partenaire de recrutement dans les secteurs de l'industrie et du bâtiment.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceBaden, SwitzerlandHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Von Maschinenbau über Elektrotechnik bis hin zu Luftfahrt und Energie & Umwelt: Wir kennen die Herausforderungen Ihrer Branche und finden die passenden Fach- und Führungskräfte…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceZurich, SwitzerlandHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Sind Sie auf der Suche nach professionellen und zuverlässigen Mitarbeitenden?”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceGenève, SwitzerlandHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“1 First Dépollution Services SA est une entreprise spécialisée dans les travaux d’assainissement des polluants du bâtiment et les conseils associés.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceMagden, SwitzerlandHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceBern, SwitzerlandHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Als unabhängiges Ingenieurbüro erbringen wir seit 2004 Beratungsdienstleistungen rund um den Umwelt- und Gesundheitsschutz in Gebäuden.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceWallisellen, SwitzerlandHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Wir verstehen uns als Vertrauenspartner für Stellensuchende und unsere Auftraggeber.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceButtisholz, SwitzerlandHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Beratung von Unternehmen im Bereich von Arbeitssicherheit und Gesundheitsschutz.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceTrin, SwitzerlandHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Praxisnahe HSE-Expertise für Industrie, Chemie und Pharma Als diplomierter Fachmann für Arbeitssicherheit komme ich aus der Praxis – und genau darin liegt meine Stärke.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceFrauenfeld, SwitzerlandHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Unsere Expertise in den Branchen Bau, Architektur und Industrie sowie unser Engagement für höchste Qualität und Kundenzufriedenheit machen uns zu Ihrem idealen Partner bei der…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 17 of 39 industrial hygiene recruiting companies based in Switzerland

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Industrial hygiene recruiting companies based in Switzerland at a glance

As of Sep 28, 2026
43.4%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
7.7%Largest-city concentration · Wallisellen
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
3
51-200
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 39 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 industrial hygiene recruiting 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 “industrial hygiene recruiting 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 industrial hygiene recruiting 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 industrial hygiene recruiting 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, 111 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 28, 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 industrial hygiene recruiting 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 industrial hygiene recruiting companies are there based in Switzerland?

RevenueBase identified 39 industrial hygiene recruiting 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?

Ecosens AG, headquartered in Wallisellen, tops this list with the largest team on record.

Which city has the most industrial hygiene recruiting companies?

Wallisellen leads with 3 headquartered companies, followed by Bern (2) and Geneve (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 111 verified decision-maker contacts tracked across these 39 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 28, 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.