Company lists · Data refreshed September 2026

Top 25 Mep engineering firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 257 companies tracked

RevenueBase identified 257 mep engineering firms headquartered in Switzerland as of September 2026 and tracks 3,034 professional contacts across them, including 1,587 with verified work emails. Zurich is the largest hub.

This list covers mep engineering firms 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 17, 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 17, 2026 86% judged on-target in blind review

257Companies

3,034Contacts tracked

1,587Verified emails

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The 25 largest mep engineering firms based in Switzerland

Ranked by team size

Top 25 of 257 mep engineering firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mep engineering firms: 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	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 17, 2026
2	Gruner	Indirect evidence	Basel, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	462 contacts →
	Indirect evidence “Gruner at a glance Founded: 1862 in Basel, Switzerland Legal form: Since 1970, public limited company owned by the founding families and employees Employees: more than 1,200 from…” Source: RevenueBase Database · checked Sep 17, 2026
3	IUB Engineering LTD	Partial evidence	Bern 14, SwitzerlandHQ checked Sep 17, 2026	201-500	156 contacts →
	Partial evidence “IUB Engineering AG has been an overall planner for infrastructure systems for over 50 years.” Source: RevenueBase Database · checked Sep 17, 2026
4	Betelec SA	Indirect evidence	Villars-ste-croix, SwitzerlandHQ checked Sep 17, 2026	51-200	69 contacts →
	Indirect evidence “Nous sommes une entreprise qui a pour but l'ingénierie, le conseil, la conception, l'établissement de projets, la direction des travaux et l'exploitation dans le domaine des…” Source: RevenueBase Database · checked Sep 17, 2026
5	Boess Gruppe	Indirect evidence	Bern, SwitzerlandHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “Wir sind nicht nur Elektroingenieure.” Source: RevenueBase Database · checked Sep 17, 2026
6	RMB Engineering AG	Partial evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	62 contacts →
	Partial evidence “Als führendes Ingenieur- und Planungsunternehmen in den Bereichen Gebäude, Energie- und Umwelttechnik realisiert die RMB Engineering AG massgeschneiderte Lösungen für…” Source: RevenueBase Database · checked Sep 17, 2026
7	Weinmann-Energies SA	Indirect evidence	Echallens, SwitzerlandHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Source: RevenueBase Database · checked Sep 17, 2026
8	Bering AG	Indirect evidence	Bern 25, SwitzerlandHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “Die BERING ist eine Ingenieurunternehmung für die Beratung und Projektierung von Elektroanlagen aller Art.” Source: RevenueBase Database · checked Sep 17, 2026
9	PZM AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect evidence “Ingenieure für Gebäudetechnik mit über 100 Mitarbeiterinnen und Mitarbeiter.” Source: RevenueBase Database · checked Sep 17, 2026
10	ZPF Ingenieure AG	Partial evidence	Basel, SwitzerlandHQ checked Sep 17, 2026	51-200	37 contacts →
	Partial evidence “The art of engineering.” Source: RevenueBase Database · checked Sep 17, 2026
11	Kalt Halbeisen Ingenieurbüro AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 17, 2026	51-200	32 contacts →
	Indirect evidence “Wir sind ein erfolgreiches Ingenieur, Planungs- und Beratungsunternehmen im Bereich der Energie- und Gebäudetechnik.” Source: RevenueBase Database · checked Sep 17, 2026
12	Evolve	Indirect evidence	Bellinzona, SwitzerlandHQ checked Sep 17, 2026	11-50	31 contacts →
	Indirect evidence “Evolve SA è una società di ingegneria svizzera con oltre 15 anni di esperienza nella progettazione tecnica, realizzazione e gestione di edifici e infrastrutture.” Source: RevenueBase Database · checked Sep 17, 2026
13	Energa SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 17, 2026	11-50	29 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
14	Marquart Elektroplanung Beratung AG	Indirect evidence	Buchs Sg, SwitzerlandHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Seit 25 Jahren und mit über Referenzobjekten bietet MARQUART Elektroplanung + Beratung von der klassischen Elektroinstallation bis hin zum komplexen Gebäudeleitsystem innovative…” Source: RevenueBase Database · checked Sep 17, 2026
15	B S Ingenieurs SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “B+S INGENIEURS SA est composé de 37 collaborateurs bénéficiant de compétences élargies dans les domaines de l’ingénierie structurale (structures porteuses et ouvrages d’art), du…” Source: RevenueBase Database · checked Sep 17, 2026
16	Tech-Insta SA	Indirect evidence	Torricella-taverne, SwitzerlandHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “La Tech-Insta nasce a fine 1995 con un’operazione di “management buy-out” dalla Filiale di Lugano del gruppo tecnologico Sulzer, continuandone l’attività nel settore…” Source: RevenueBase Database · checked Sep 17, 2026
17	Ifec Ingegneria SA	Indirect evidence	Rivera-monteceneri, SwitzerlandHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “IFEC ingegneria SA is a consulting company in the field of energy, building physics, acoustics and applied environmental sciences.” Source: RevenueBase Database · checked Sep 17, 2026
18	Klinova AG	Indirect evidence	8006, SwitzerlandHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “Die Klinova AG ist Ihr Systemprofi im Bereich der Gebäude, Energie- und Prozesstechnik.” Source: RevenueBase Database · checked Sep 17, 2026
19	Cement Engineering SA Cesa	Partial evidence	Geneve Carouge, SwitzerlandHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “Cement Engineering SA (CESA) Engineering is a professionals business!” Source: RevenueBase Database · checked Sep 17, 2026
20	DPE Electrotechnique SA	Indirect evidence	Sierre, SwitzerlandHQ checked Sep 17, 2026	11-50	23 contacts →
	Indirect evidence “DPE Electrotechnique SA, est un bureau d'ingénieurs en électricité constitué en 1991.” Source: RevenueBase Database · checked Sep 17, 2026
21	W. Rokitzky AG	Indirect evidence	8304 Wallisellen, SwitzerlandHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect evidence “Unsere inhabergeführte Unternehmensstruktur verkürzt Kommunikations- und Entscheidungswege für Bauherren und Auftraggeber massgeblich.” Source: RevenueBase Database · checked Sep 17, 2026
22	Grünig&partner AG	Indirect evidence	Liebefeld, SwitzerlandHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Wir von Grünig & Partner haben eine Passion: die Gebäudetechnik.” Source: RevenueBase Database · checked Sep 17, 2026
23	LE Collectif SA	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Le Collectif SA propose des services dans le domaine du génie civil et de l'ingénierie des structures.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tecnoprogetti SA	Indirect evidence	Camorino, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Siamo attivi da oltre 50 anni per offrire servizi di consulenza e progettazione integrata dell’impiantistica e della tecnica della costruzione.” Source: RevenueBase Database · checked Sep 17, 2026
25	Planovita	Indirect evidence	Gisikon, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “PLANOVITA PLANT VITAL: Wir planen die Gebäudetechnik für Ihr Bauvorhaben – smart, effizient, nachhaltig!” Source: RevenueBase Database · checked Sep 17, 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: mep engineering firms. 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 mep engineering firms.
Partial evidence: Its own public description names part of mep engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mep engineering firms. 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 257 mep engineering firms based in Switzerland

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Mep engineering firms based in Switzerland at a glance

As of Sep 17, 2026

52.3%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · Zurich

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

138

11-50

51-200

201-500

1,001-5,000

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 257 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 mep engineering firms, 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 “mep engineering firms”. 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 mep engineering firms), 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 mep engineering firms, 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, 1,587 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 17, 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 mep engineering firms, 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 mep engineering firms are there based in Switzerland?

RevenueBase identified 257 mep engineering firms 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?

Amstein Walthert, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most mep engineering firms?

Zurich leads with 14 headquartered companies, followed by Bern (6) and Winterthur (6).

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 1,587 verified decision-maker contacts tracked across these 257 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 17, 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.