Company lists · Data refreshed October 2026

Top 25 Chemical engineering contractors based in Switzerland

Name: Chemical engineering contractors based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 140 companies tracked

RevenueBase identified 140 company matches for chemical engineering contractors associated with Switzerland as of October 2026 and tracks 1,532 professional contacts across them, including 636 with verified work emails. Lausanne is the largest hub.

This list covers company matches for chemical 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 October 9, 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 Oct 9, 2026 How this list was built

140Companies

1,532Contacts tracked

636Verified emails

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The 25 largest chemical engineering contractors based in Switzerland

Ranked by team size

Top 25 of 140 company matches for chemical engineering contractors based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Casale	Exact match	Lugano, SwitzerlandHQ recorded Oct 9, 2026	201-500	299 contacts →
	Exact match “Casale is a global provider of integrated solutions for the production of fertilizers and other base chemicals.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	IUB Engineering LTD	Exact match	Bern 14, SwitzerlandHQ recorded Oct 9, 2026	201-500	163 contacts →
	Exact match “IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	SP Groups Engineering	Exact match	1920 Martigny, SwitzerlandHQ recorded Oct 9, 2026	51-200	57 contacts →
	Exact match “From the first reflection to the achievement, you can trust our expertise for your ambitious projects.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Inra Group AG	Exact match	Pratteln, SwitzerlandHQ recorded Oct 9, 2026	51-200	54 contacts →
	Exact match “INRA Group AG \| Profil Qualität und Zuverlässigkeit Die INRA GROUP AG ist ein eigenständiges, unabhängiges Unternehmen mit Sitz in Pratteln.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Weinmann-Energies SA	Exact match	Echallens, SwitzerlandHQ recorded Oct 9, 2026	51-200	50 contacts →
	Exact match “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Buss Chemtech AG	Exact match	Pratteln, SwitzerlandHQ recorded Oct 9, 2026	51-200	47 contacts →
	Exact match “Chemistry Meets Swiss Engineering!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Added Value Engineering	Exact match	Martigny, SwitzerlandHQ recorded Oct 9, 2026	11-50	31 contacts →
	Exact match “Revolutionize your industry with our sustainable and innovative solutions for chemistry, pharma, food, and microtechnology.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Energa SA	Exact match	Lausanne, SwitzerlandHQ recorded Oct 9, 2026	11-50	29 contacts →
	Exact match “Situé à Yverdon-les-Bains et à Lausanne, ENERGA SA est un bureau d’ingénieurs-conseils EPFL-SIA actif sur l’ensemble de la Suisse romande.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Cement Engineering SA Cesa	Exact match	Geneve Carouge, SwitzerlandHQ recorded Oct 9, 2026	11-50	29 contacts →
	Exact match “Cement Engineering SA (CESA) Engineering is a professionals business!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Tecnoservice Engineering SA	Exact match	Fribourg, SwitzerlandHQ recorded Oct 9, 2026	51-200	27 contacts →
	Exact match “TECNOSERVICE ENGINEERING SA est un bureau d’études et d’ingénieurs conseils pour les installations techniques et études énergétiques liées au bâtiment et à l’industrie.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Techfirm Industrial Services	Exact match	Geneva, SwitzerlandHQ recorded Oct 9, 2026	201-500	27 contacts →
	Exact match “Since 1998, Techfirm Industrial Services is an independent Swiss engineering consulting company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	AZ Ingénieurs SA	Exact match	Lausanne 10, SwitzerlandHQ recorded Oct 9, 2026	11-50	24 contacts →
	Exact match “La marque az ingénieurs regroupe des sociétés privées réunissant des ingénieurs-conseils dans les domaines de l'énergie, de la sécurité et des installations techniques pour le…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Pechigaz SA	Exact match	Collombey, SwitzerlandHQ recorded Oct 9, 2026	51-200	20 contacts →
	Exact match “Fondée en 1989, Péchigaz SA est active dans la construction d’installations industrielles touchant les complexes chimiques, pharmaceutiques, alimentaires, hydroélectriques…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Assco Engineering AG	Exact match	Dietikon, SwitzerlandHQ recorded Oct 9, 2026	11-50	19 contacts →
	Exact match “Seit 1988 befassen wir uns mit Prozessen in diversen Fachgebieten und Industriezweigen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	HINE	Exact match	Münchenstein, SwitzerlandHQ recorded Oct 9, 2026	11-50	18 contacts →
	Exact match “Herzlich willkommen bei HINE – Ihrem führenden Experten für das präzise Planen von verfahrenstechnischen Anlagen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Actemium Romandie	Exact match	Porrentruy, SwitzerlandHQ recorded Oct 9, 2026	11-50	17 contacts →
	Exact match “Actemium Romandie réalise des prestations d'ingénierie en Automation, Industrial IT, efficience energétique, génie électrique, Instrumentation pour l'industrie du process des…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	JDR Energies SA	Exact match	Confignon, SwitzerlandHQ recorded Oct 9, 2026	11-50	17 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	WSP Ingenieure AG	Exact match	Hinwil, SwitzerlandHQ recorded Oct 9, 2026	11-50	15 contacts →
	Exact match “Engineering, Planung, Beratung, Analysen, Bauleitung” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Meili Technology SA	Exact match	Bex, SwitzerlandHQ recorded Oct 9, 2026	11-50	14 contacts →
	Exact match “Founded in 2017, Meili Technology SA carries the continuity of the exceptional engineering and welding know-how build up over 60 years by the Swiss company “Alfred Meili SA…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	NBG Ingenieure AG	Exact match	Bern, SwitzerlandHQ recorded Oct 9, 2026	11-50	13 contacts →
	Exact match “Firma: Seit 1982 ist NBG Ingenieure AG eine unabhängige Aktiengesellschaft, die ihre Kunden zu allen Energie- und Technikfragen beim Bau und der Sanierung grosser Gebäude berät.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Energestion SA	Exact match	Les Acacias, SwitzerlandHQ recorded Oct 9, 2026	11-50	12 contacts →
	Exact match “Energestion SA est un bureau d'ingénieurs conseils du bâtiment et en industrie.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Oratek	Exact match	Ecublens, SwitzerlandHQ recorded Oct 9, 2026	11-50	11 contacts →
	Exact match “Oratek is a Swiss-based engineering consulting firm, established in 2018.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Köttermann AG	Exact match	Kemptthal, SwitzerlandHQ recorded Oct 9, 2026	1-10	9 contacts →
	Exact match “Wir unterstützen unsere Kunden aus Chemie, Industrie und Pharmazie bei der Beratung, Planung und Ausführung komplexer Projekte im Bereich der Laboreinrichtungen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Eltecna AG	Exact match	Zürich, SwitzerlandHQ recorded Oct 9, 2026	11-50	9 contacts →
	Exact match “Wir stellen Ihnen unsere über 50-jährige Erfahrung im Anlagenbau zur Verfügung.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Junit AG	Exact match	Baar, SwitzerlandHQ recorded Oct 9, 2026	11-50	9 contacts →
	Exact match “Junit ist eine Beratungs- und Ingenieurfirma für Gebäudetechnik.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “chemical engineering contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 140 chemical engineering contractors based in Switzerland

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Chemical engineering contractors based in Switzerland at a glance

As of Oct 9, 2026

41.5%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

4.3%Largest-city concentration · Lausanne

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 140 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 “chemical 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 636 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 October 9, 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 “chemical engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical engineering contractors are there based in Switzerland?

RevenueBase identified 140 company matches for chemical engineering contractors associated with Switzerland as of October 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?

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

Which city has the most chemical engineering contractors?

Lausanne leads with 6 company records, followed by Basel (5) and Zurich (5).

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 636 professional contacts with verified work emails tracked across these 140 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 October 9, 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.