Company lists · Data refreshed September 2026

Top 25 Offshore electrical engineering firms based in Switzerland

Name: Offshore electrical 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 242 companies tracked

RevenueBase identified 242 offshore electrical engineering firms headquartered in Switzerland as of September 2026 and tracks 4,324 professional contacts across them, including 798 with verified work emails. Zurich is the largest hub.

This list covers offshore electrical 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

242Companies

4,324Contacts tracked

798Verified emails

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The 25 largest offshore electrical engineering firms based in Switzerland

Ranked by team size

Top 25 of 242 offshore electrical 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 offshore electrical 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	Allseas	Partial evidence	Châtel-saint-denis, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	2,554 contacts →
	Partial evidence “Allseas is a world-leading contractor in the offshore energy market.” Source: RevenueBase Database · checked Sep 17, 2026
2	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
3	Ciel Electricité SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “CIEL est une marque d’Eiffage Énergie Systèmes Suisse.” 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	Enotrac	Indirect evidence	Thun, SwitzerlandHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “Since 1987, Enotrac has been a reliable partner for the railway sector.” Source: RevenueBase Database · checked Sep 17, 2026
7	Eglin Elektro AG	Indirect evidence	Baden, SwitzerlandHQ checked Sep 17, 2026	201-500	46 contacts →
	Indirect evidence “Ein Unternehmen unter Strom Elektroinstallationen in Neu- und Umbauten machen unser Kerngeschäft aus.” 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	Sedelec SA	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 17, 2026	201-500	43 contacts →
	Indirect evidence “Électrotechnique à 360° Électricien à Genève depuis plus de 45 ans Experts en courant fort et courant faible, nous garantissons votre satisfaction.” Source: RevenueBase Database · checked Sep 17, 2026
10	Elektrotechnik AG Eagb	Indirect evidence	Postfach, SwitzerlandHQ checked Sep 17, 2026	51-200	39 contacts →
	Indirect evidence “Seit 1923 begeistern wir uns für Elektrotechnik und sind fest in der Region Basel verwurzelt.” Source: RevenueBase Database · checked Sep 17, 2026
11	Amaudruz SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 17, 2026	51-200	39 contacts →
	Indirect evidence “Entreprise générale d'installations électriques, Amaudruz SA naît en 1934 sous la direction de Lucien Amaudruz.” Source: RevenueBase Database · checked Sep 17, 2026
12	Huber Monsch AG	Indirect evidence	St. Gallen, SwitzerlandHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “Elektrotechnik aus einer Hand!” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	SF Elektro-Engineering AG	Strong evidence	Flums, SwitzerlandHQ checked Sep 17, 2026	51-200	24 contacts →
	Strong evidence “As an engineering company we want to cover the needs of electrical installations and systems of commercial and industrial partners as well as public infrastructures.” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	STS Elektro AG	Indirect evidence	Kriens, SwitzerlandHQ checked Sep 17, 2026	51-200	22 contacts →
	Indirect evidence “Ihre Elektro-Partner in Luzern Unsere Technik verbindet – und das auf der ganzen Linie.” Source: RevenueBase Database · checked Sep 17, 2026
17	Lami SA	Indirect evidence	Martigny, SwitzerlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “LAMI SA, bureau d'ingénierie électrique depuis 1987.” Source: RevenueBase Database · checked Sep 17, 2026
18	NSE AG	Indirect evidence	Wohlen, SwitzerlandHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Wherever there are appreciable risks for individuals and materials, reliable systems from NSE are needed.” Source: RevenueBase Database · checked Sep 17, 2026
19	Brüniger AG	Indirect evidence	Chur, SwitzerlandHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “Brüniger ist eines der grössten Elektroingenieurbüros in Graubünden.” Source: RevenueBase Database · checked Sep 17, 2026
20	WEY Partner AG	Indirect evidence	Sursee, SwitzerlandHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Als regional verankertes Ingenieurbüro für Elektroanlagen arbeiten wir kundenorientiert, professionell und zielgerichtet.” Source: RevenueBase Database · checked Sep 17, 2026
21	Maneth Stiefel AG Electroengineering	Indirect evidence	Schlieren, SwitzerlandHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “maneth stiefel ag unterstützt die Bauherrschaft neutral und unabhängig in den immer umfassenderen Bereichen der Elektrotechnik.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bürki Electric AG	Partial evidence	Steffisburg, SwitzerlandHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Bürki Electric gilt immer öfter als bevorzugter Partner für anspruchsvolle Steuerungen und Schaltanlagen.” Source: RevenueBase Database · checked Sep 17, 2026
23	Deepwave	Partial evidence	Paradiso, SwitzerlandHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Driving Innovation in the Offshore and Onshore O&G Industry At Deepwave, we are at the forefront of innovation in the oil and gas (O&G) industry, providing a comprehensive range…” Source: RevenueBase Database · checked Sep 17, 2026
24	Elettroconsulenze Solcà SA	Indirect evidence	Mendrisio, SwitzerlandHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “Progettazione impianti elettrici” Source: RevenueBase Database · checked Sep 17, 2026
25	Ramseyer Elektro AG	Indirect evidence	Muttenz, SwitzerlandHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “An der richtigen Adresse.” 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: offshore electrical 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 offshore electrical engineering firms.
Partial evidence: Its own public description names part of offshore electrical engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore electrical 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 242 offshore electrical engineering firms based in Switzerland

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Offshore electrical engineering firms based in Switzerland at a glance

As of Sep 17, 2026

18.5%Verified-email coverage

17.9Average contacts per company

1-10Median size (employees)

5.0%Largest-city concentration · Zurich

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

135

11-50

51-200

201-500

501-1,000

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 242 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 offshore electrical 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 “offshore electrical 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 offshore electrical 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 offshore electrical 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, 798 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 offshore electrical 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 offshore electrical engineering firms are there based in Switzerland?

RevenueBase identified 242 offshore electrical 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?

Allseas, headquartered in Chatel-Saint-Denis, tops this list with the largest team on record.

Which city has the most offshore electrical engineering firms?

Zurich leads with 12 headquartered companies, followed by Lausanne (5) and Lugano (5).

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 798 verified decision-maker contacts tracked across these 242 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.