Company lists · Data refreshed November 2026

Top 20 Nuclear facility engineering firms based in Switzerland

RevenueBase identified 46 company matches for nuclear facility engineering firms associated with Switzerland as of November 2026 and tracks 309 professional contacts across them, including 104 with verified work emails. Geneva is the largest hub.

This list covers company matches for nuclear facility engineering firms 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 November 6, 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 Nov 6, 2026 How this list was built
46Companies
309Contacts tracked
104Verified emails
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The 20 largest nuclear facility engineering firms based in Switzerland

Ranked by team size
Top 20 of 46 company matches for nuclear facility engineering firms based in Switzerland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFribourg, SwitzerlandHQ recorded Nov 6, 202651-20031 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLausanne 10, SwitzerlandHQ recorded Nov 6, 202611-5025 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWinterthur, SwitzerlandHQ recorded Nov 6, 20261,001-5,00022 contacts →

Exact match

“IMI Nuclear is providing goods and services to the Nuclear Power Industry, including New Builds, Uprate, PLEX and the full range of Aftermarket Services including Spare Parts…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBern, SwitzerlandHQ recorded Nov 6, 202611-5017 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOlten, SwitzerlandHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“passion for safe energy Ihr Spezialist für Projektleitung, Spezifizierung und Qualitätssicherung im Kernkraftwerks- und Industrieanlagenbau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLes Acacias, SwitzerlandHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Energestion SA est un bureau d'ingénieurs conseils du bâtiment et en industrie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEcublens, SwitzerlandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Oratek is a Swiss-based engineering consulting firm, established in 2018.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPetit Lancy, SwitzerlandHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Zanetti Ingénieurs-Conseils est un bureau d'ingénieurs-conseils spécialisé dans les domaines de l'électricité, de la sûreté et de la sécurité incendie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLandquart, SwitzerlandHQ recorded Nov 6, 202611-509 contacts →

Exact match

“GHT Engineering AG ist ein Ingenieurbüro für die Energie- und Gebäudetechnikplanung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAdliswil, SwitzerlandHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Wir, BK Engineering Partners AG, sind ein eigenständiges Ingenieurbüro für die Planung elektrischer Anlagen und Systemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchZug, SwitzerlandHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Ennovion Engineering ist Ihr Partner für umfassende Ingenieurleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWohlen, SwitzerlandHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Consulting und Engineering für Projekt, Betriebs- und Sicherheitsmanagement sowie Elektro-Engineering für Verkehrsanlagen, Umwelt und Infrastruktur in Hoch- und Tiefbauten”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEffretikon, SwitzerlandHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Fachleistung seit 1979.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWabern, SwitzerlandHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Mit der nötigen Sorgfalt, unserer umsichtigen Arbeitsweise und der gesamtheitlichen Sicht, unterstützen wir Sie bei Ihren Bau- und Projektvorhaben.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEchallens, SwitzerlandHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-USIC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBrugg, SwitzerlandHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Die NRG Engineering GmbH ist ein Ingenieur- und Dienstleistungsunternehmen im Bereich der Energieversorgung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVillars-ste-croix, SwitzerlandHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBaden, SwitzerlandHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Unsere Dienstleistungen basieren auf langjähriger Erfahrung bei Ingenieur-/Planerbüros, Lieferanten und EVUs in der Entwicklung, Planung und Ausführung von Projekten im Bereich…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBulle, SwitzerlandHQ recorded Nov 6, 20261-102 contacts →

Exact match

“S-PROJET Sàrl est un bureau d’ingénieurs œuvrant dans les techniques du bâtiment et de l’industrie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLausanne, SwitzerlandHQ recorded Nov 6, 20261-101 contacts →

Exact match

“SunPort is an engineering consulting company and its main business activity is to provide engineering design review, licensing support, training and project management services to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 20 of 46 nuclear facility engineering firms based in Switzerland

See the full list, filter by size, metro and specialty, and access 104 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nuclear facility engineering firms based in Switzerland at a glance

As of Nov 6, 2026
33.7%Verified-email coverage
6.7Average contacts per company
11-50Median size (employees)
8.7%Largest-city concentration · Geneva
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
18
51-200
4
1,001-5,000
1

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 46 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 “nuclear facility engineering firms” 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 104 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 November 6, 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 “nuclear facility engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nuclear facility engineering firms are there based in Switzerland?

RevenueBase identified 46 company matches for nuclear facility engineering firms associated with Switzerland as of November 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?

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

Which city has the most nuclear facility engineering firms?

Geneva leads with 4 company records, followed by Lausanne (2) and Olten (2).

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 104 professional contacts with verified work emails tracked across these 46 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 November 6, 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.