Company lists · Data refreshed September 2026

Top 25 Electrical testing and diagnostics based in Switzerland

Name: Electrical testing and diagnostics based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 94 companies tracked

RevenueBase identified 94 electrical testing and diagnostics headquartered in Switzerland as of September 2026 and tracks 303 professional contacts across them, including 120 with verified work emails. Zurich is the largest hub.

This list covers electrical testing and diagnostics 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 19, 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 19, 2026 86% judged on-target in blind review

94Companies

303Contacts tracked

120Verified emails

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The 25 largest electrical testing and diagnostics based in Switzerland

Ranked by team size

Top 25 of 94 electrical testing and diagnostics based in Switzerland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical testing and diagnostics: 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	Certum I Elektrokontrolle UND Beratung	Indirect evidence	Dietikon, SwitzerlandHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “Wir stehen für Zuverlässigkeit, Professionalität und Sicherheit von elektrischen Anlagen und sind die erste Adresse im Bereich Elektrokontrolle und fachliche Weiterbildung.” Source: RevenueBase Database · checked Sep 19, 2026
2	EM Electrocontrol AG	Indirect evidence	Urtenen-schönbühl, SwitzerlandHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “Ihre Experten im sicheren Umgang mit Strom – in der ganzen Schweiz Die EM ELECTROCONTROL AG wurde am 25.” Source: RevenueBase Database · checked Sep 19, 2026
3	Energiecheck Bern AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “Willkommen bei energiecheck bern ag, Ihrer zuverlässigen Inspektionsstelle für Elektrosicherheit und Energieeffizienz.” Source: RevenueBase Database · checked Sep 19, 2026
4	Effitec SA	Indirect evidence	Echandens, SwitzerlandHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “Notre mission première chez Effitec est de prévenir les accidents, notamment par des contrôles des installations électriques et de la formation.” Source: RevenueBase Database · checked Sep 19, 2026
5	Timatec Electricité	Partial evidence	Duillier, SwitzerlandHQ checked Sep 19, 2026	51-200	16 contacts →
	Partial evidence “Fondée le 17 juin 2013, la société TIMATEC Electricité est active dans tous les domaines.” Source: RevenueBase Database · checked Sep 19, 2026
6	Tophinke Elektro-Kontroll AG	Indirect evidence	Hochdorf, SwitzerlandHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Die Tophinke Elektro-Kontroll AG bietet sowohl für Immobilienbesitzer (Privatpersonen und Liegenschaftsverwaltungen) wie auch für Industrie und Gewerbe diverse Dienstleistungen im…” Source: RevenueBase Database · checked Sep 19, 2026
7	Bänziger Zollinger Gmbh	Indirect evidence	Dietikon, SwitzerlandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Qualität und Sicherheit steht bei uns an 1.” Source: RevenueBase Database · checked Sep 19, 2026
8	AHB Elektro AG	Indirect evidence	Interlaken, SwitzerlandHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Wir sind ihr kompetenter Partner für alle Elektroinstallationen im privaten, gewerblichen und industriellen Bereich.” Source: RevenueBase Database · checked Sep 19, 2026
9	Crettaz Electricité SA	Partial evidence	Mase, SwitzerlandHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Crettaz Electricité SA - Un savoir-faire à votre service Fondée il y a 40 ans, notre société compte 22 employés techniciens, experts, faisant preuve quotidiennement de…” Source: RevenueBase Database · checked Sep 19, 2026
10	Elektro QS	Indirect evidence	Kriens, SwitzerlandHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Elektro QS GmbH – Ihre unabhängige Kontrollstelle für Elektrokontrollen, SiNa und Blitzschutz in Luzern & der Zentralschweiz.” Source: RevenueBase Database · checked Sep 19, 2026
11	Swiss Electro Service Gmbh	Indirect evidence	Pratteln, SwitzerlandHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Swiss Electro Service GmbH ist ein spezialisiertes Unternehmen für Elektrofachbauleitung, Elektrokontrollen und technische Dienstleistungen in der Gebäudetechnik.” Source: RevenueBase Database · checked Sep 19, 2026
12	Électricité Progin SA	Indirect evidence	Corminboeuf, SwitzerlandHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Électricité Progin SA vous accompagne dans la réalisation, la maintenance, le contrôle et les révisions de vos installations électriques en tous genres” Source: RevenueBase Database · checked Sep 19, 2026
13	WIN Elektro AG	Indirect evidence	Winterthur, SwitzerlandHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Vor über 100 Jahren aus der Abteilung für Technische Dienstleistungen der Rieter Maschinenfabrik AG und Sulzer entstanden, sind wir heute Ihr Elektrounternehmen für die Industrie…” Source: RevenueBase Database · checked Sep 19, 2026
14	MS Electro Controle SA	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “MS Electro Contrôle est un organe de contrôle indépendant.” Source: RevenueBase Database · checked Sep 19, 2026
15	Asked Gmbh	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Ihre Ansprechpartner: Adrian Saladin Marcel Pech Daniel Breitwieser Mike Hoa Giuseppe De Fregias Gloria Prat Alexandra Fanti Firma ASKED bietet folgende Dienstleistungen an…” Source: RevenueBase Database · checked Sep 19, 2026
16	Elektro Feuz AG	Indirect evidence	Grindelwald, SwitzerlandHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Die Elektro Feuz AG ist Ihr zuverlässiger Partner für Elektroinstallationen in Grindelwald und Region.” Source: RevenueBase Database · checked Sep 19, 2026
17	Cad-Consulting Sàrl	Indirect evidence	Puidoux, SwitzerlandHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Du contrôle de vos installations électriques à l'étude de vos projets, nous mettons notre expertise à votre service.” Source: RevenueBase Database · checked Sep 19, 2026
18	Os-Elektro OXE Services & Elektrodienstleistungen Gmbh	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “OS-ELEKTRO OXE SERVICES & ELEKTRODIENSTLEISTUNGEN GmbH ist Ihr verlässlicher Partner in der Welt der Elektrosicherheit.” Source: RevenueBase Database · checked Sep 19, 2026
19	AO Elektrokontrolle Gmbh	Indirect evidence	Reinach, SwitzerlandHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Elektrokontrollen, Sicherheitsnachweise” Source: RevenueBase Database · checked Sep 19, 2026
20	Am1 Elektrokontrollen Gmbh	Indirect evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	201-500	2 contacts →
	Indirect evidence “Elektro-Sicherheitskontrollen, Beratung, Prüfung, Blitzschutzsysteme” Source: RevenueBase Database · checked Sep 19, 2026
21	Mollet & Co. AG	Indirect evidence	Flumenthal, SwitzerlandHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Kontrolle von Elektroinstallationen, Inspektionen von Spezialinstallationen, Schulungen, Beratungen, Elektrosicherheitskonzepte, Elektro-Thermografie, Spannungsqualität…” Source: RevenueBase Database · checked Sep 19, 2026
22	Devanthéry Electricité Sàrl	Partial evidence	Sierre, SwitzerlandHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “Electricité générale Projet Dépannage Contrôle OIBT” Source: RevenueBase Database · checked Sep 19, 2026
23	Elektro Expert Gmbh	Indirect evidence	Sarnen, SwitzerlandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Elektrokontrollen, Blitzschutz, Geräteprüfung, Sicherheitsberatung und -schulung.” Source: RevenueBase Database · checked Sep 19, 2026
24	Kaspar Belser Elektroplanung UND Installation	Indirect evidence	Oberentfelden, SwitzerlandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Das sind wir - Verlässlich, flexibel und kompetent Neue Chancen und Produkte erfordern präzise Planung und Umsetzung.” Source: RevenueBase Database · checked Sep 19, 2026
25	Ibex Elektro Gmbh	Indirect evidence	Matten Bei Interlaken, SwitzerlandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: electrical testing and diagnostics. 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 electrical testing and diagnostics.
Partial evidence: Its own public description names part of electrical testing and diagnostics, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical testing and diagnostics. 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 94 electrical testing and diagnostics based in Switzerland

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Electrical testing and diagnostics based in Switzerland at a glance

As of Sep 19, 2026

39.6%Verified-email coverage

3.2Average contacts per company

1-10Median size (employees)

4.3%Largest-city concentration · Zurich

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 94 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 electrical testing and diagnostics, 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 “electrical testing and diagnostics”. 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 electrical testing and diagnostics), 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 electrical testing and diagnostics, 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, 120 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 19, 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 electrical testing and diagnostics, 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 electrical testing and diagnostics are there based in Switzerland?

RevenueBase identified 94 electrical testing and diagnostics 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?

Certum I Elektrokontrolle UND Beratung, headquartered in Dietikon, tops this list with the largest team on record.

Which city has the most electrical testing and diagnostics?

Zurich leads with 4 headquartered companies, followed by Biel (3) and Baden (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 120 verified decision-maker contacts tracked across these 94 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 19, 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.