Company lists · Data refreshed September 2026

Top 25 Energy infrastructure operators based in Switzerland

Name: Energy infrastructure operators based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 104 companies tracked

RevenueBase identified 104 energy infrastructure operators headquartered in Switzerland as of September 2026 and tracks 12,991 professional contacts across them, including 6,913 with verified work emails. Zurich is the largest hub.

This list covers energy infrastructure operators 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 16, 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 16, 2026 86% judged on-target in blind review

104Companies

12,991Contacts tracked

6,913Verified emails

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The 25 largest energy infrastructure operators based in Switzerland

Ranked by team size

Top 25 of 104 energy infrastructure operators based in Switzerland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure operators: 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	Landis GYR	Partial evidence	Cham, SwitzerlandHQ checked Sep 16, 2026	5,001-10,000	4,252 contacts →
	Partial evidence “Landis+Gyr is a global energy technology leader delivering intelligent solutions that connect devices, data, and decisions across the grid.” Source: RevenueBase Database · checked Sep 16, 2026
2	Impala Terminals	Partial evidence	Geneva, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	1,422 contacts →
	Partial evidence “At Impala Terminals Group we store and handle the essential energies and resources that matter, helping global supply meet demand more effectively.” Source: RevenueBase Database · checked Sep 16, 2026
3	BKW AG	Strong evidence	Bern, SwitzerlandHQ checked Sep 16, 2026	10001+	1,148 contacts →
	Strong evidence “The BKW Group is an internationally active energy and infrastructure company based in Berne.” Source: RevenueBase Database · checked Sep 16, 2026
4	Groupe E	Partial evidence	Granges-paccot, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	1,114 contacts →
	Partial evidence “Groupe E is a utility active in the production, distribution, sales, trading of electricity, as well as energy related services (telecommunications, district heating, public…” Source: RevenueBase Database · checked Sep 16, 2026
5	Romande Energie	Partial evidence	Morges, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	746 contacts →
	Partial evidence “As a leading energy company and the largest utility in French-speaking Switzerland, the Romande Energie Group offers a wide range of sustainable solutions such as energy…” Source: RevenueBase Database · checked Sep 16, 2026
6	Varo Energy	Partial evidence	SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	557 contacts →
	Partial evidence “VARO Energy (“VARO”) is a leading European energy transition company operating throughout the complete energy supply chain.” Source: RevenueBase Database · checked Sep 16, 2026
7	MET Group	Partial evidence	Baar, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	488 contacts →
	Partial evidence “MET Group is an integrated European energy company, headquartered in Switzerland, with activities and assets in natural gas and power markets.” Source: RevenueBase Database · checked Sep 16, 2026
8	Repower	Strong evidence	Poschiavo, SwitzerlandHQ checked Sep 16, 2026	501-1,000	367 contacts →
	Strong evidence “Repower has been operating as an electricity producer, distribution grid operator and energy trader for 120 years.” Source: RevenueBase Database · checked Sep 16, 2026
9	Hydro Exploitation SA	Indirect evidence	Sitten, SwitzerlandHQ checked Sep 16, 2026	501-1,000	257 contacts →
	Indirect evidence “The company HYDRO Exploitation SA is a service provider that specialises in the operation of electrical installations and hydroelectric facilities.” Source: RevenueBase Database · checked Sep 16, 2026
10	WWZ AG Energie, Telekom, E-Mobilität, Wasser	Indirect evidence	Zug, SwitzerlandHQ checked Sep 16, 2026	501-1,000	227 contacts →
	Indirect evidence “Viel Zug drin – seit über 130 Jahren.” Source: RevenueBase Database · checked Sep 16, 2026
11	OIKEN	Indirect evidence	Sion, SwitzerlandHQ checked Sep 16, 2026	501-1,000	226 contacts →
	Indirect evidence “Avenir activé.” Source: RevenueBase Database · checked Sep 16, 2026
12	Eniwa AG	Partial evidence	Buchs, SwitzerlandHQ checked Sep 16, 2026	201-500	202 contacts →
	Partial evidence “Eniwa ist ein regional verankertes Energie-Dienstleistungsunternehmen mit Sitz in Buchs.” Source: RevenueBase Database · checked Sep 16, 2026
13	Viteos SA	Indirect evidence	Neuchâtel, SwitzerlandHQ checked Sep 16, 2026	201-500	190 contacts →
	Indirect evidence “Référence neuchâteloise de la transition énergétique, Viteos assure la fourniture d’énergies ainsi que la gestion des réseaux d’eau, d’électricité, de gaz et de chauffage/froid à…” Source: RevenueBase Database · checked Sep 16, 2026
14	Groupe Gruyère Energie	Partial evidence	Bulle, SwitzerlandHQ checked Sep 16, 2026	201-500	157 contacts →
	Partial evidence “Active depuis plus de 130 ans et principal promoteur de la transition énergétique dans la région, Gruyère Energie SA est une entreprise active dans l’approvisionnement et la…” Source: RevenueBase Database · checked Sep 16, 2026
15	St.Galler Stadtwerke	Indirect evidence	St.gallen, SwitzerlandHQ checked Sep 16, 2026	201-500	128 contacts →
	Indirect evidence “Wer sich mit der Zukunft beschäftigt, möchte Klarheit.” Source: RevenueBase Database · checked Sep 16, 2026
16	Energie Service Biel Bienne	Indirect evidence	Biel, SwitzerlandHQ checked Sep 16, 2026	51-200	106 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
17	Genedis	Indirect evidence	Vernayaz, SwitzerlandHQ checked Sep 16, 2026	51-200	101 contacts →
	Indirect evidence “Genedis est l’une des principales entreprises valaisannes des secteurs de l’énergie et du multimédia.” Source: RevenueBase Database · checked Sep 16, 2026
18	F. Borner AG	Partial evidence	Reiden, SwitzerlandHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “BORNER bewegt sich seit Jahrzehnten mit Leidenschaft, Dynamik und Expertise in der Energietechnik und deren Verteilung.” Source: RevenueBase Database · checked Sep 16, 2026
19	Tech Building	Partial evidence	Perly - Genève, SwitzerlandHQ checked Sep 16, 2026	51-200	82 contacts →
	Partial evidence “Acteur de référence depuis plus de 25 ans à Genève, TECH BUILDING est une entreprise dont le cœur de métier repose sur la réalisation d’infrastructures énergétiques du bâtiment et…” Source: RevenueBase Database · checked Sep 16, 2026
20	Enertrans Switzerland AG	Indirect evidence	Niedergösgen, SwitzerlandHQ checked Sep 16, 2026	51-200	69 contacts →
	Indirect evidence “Grids for tomorrow, shaped today – unsere Ideen formen die Netzlösungen von morgen.” Source: RevenueBase Database · checked Sep 16, 2026
21	Thomaslloyd Group	Partial evidence	Stadtkreis 2, SwitzerlandHQ checked Sep 16, 2026	1,001-5,000	62 contacts →
	Partial evidence “Founded in 2003, ThomasLloyd is a vertically integrated sustainable energy and technology solutions provider, integrating development, investment, operations, and technology on a…” Source: RevenueBase Database · checked Sep 16, 2026
22	Sefa Société Electrique DES Forces DE L'aubonne	Indirect evidence	Aubonne, SwitzerlandHQ checked Sep 16, 2026	51-200	59 contacts →
	Indirect evidence “SEFA, Société Electrique des Forces de l'Aubonne, est une entreprise centenaire dont l’activité première est la production, la distribution et la vente d'énergie électrique.” Source: RevenueBase Database · checked Sep 16, 2026
23	SIE SA	Indirect evidence	Renens, SwitzerlandHQ checked Sep 16, 2026	51-200	55 contacts →
	Indirect evidence “SIE SA, société de 100 collaborateurs, est le gestionnaire de réseau de distribution (GRD) acheminant annuellement plus de 350 millions de kilowattheures aux 50 habitants situés…” Source: RevenueBase Database · checked Sep 16, 2026
24	Glattwerk AG	Partial evidence	Dübendorf, SwitzerlandHQ checked Sep 16, 2026	51-200	50 contacts →
	Partial evidence “Verbunden, unterstützend, energiereich, wärmend – die Glattwerk AG versorgt Dübendorf, Gockhausen, Wallisellen, Dietlikon und Wangen-Brüttisellen mit Produkten und…” Source: RevenueBase Database · checked Sep 16, 2026
25	IBC Energie Wasser Chur	Indirect evidence	Chur, SwitzerlandHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect evidence “Die IBC ist eine selbstständig öffentlich-rechtliche Anstalt mit Sitz in Chur.” Source: RevenueBase Database · checked Sep 16, 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: energy infrastructure operators. 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 energy infrastructure operators.
Partial evidence: Its own public description names part of energy infrastructure operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure operators. 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 104 energy infrastructure operators based in Switzerland

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Energy infrastructure operators based in Switzerland at a glance

As of Sep 16, 2026

53.2%Verified-email coverage

124.9Average contacts per company

11-50Median size (employees)

9.6%Largest-city concentration · Zurich

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 104 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 energy infrastructure operators, 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 “energy infrastructure operators”. 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 energy infrastructure operators), 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 energy infrastructure operators, 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, 6,913 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 16, 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 energy infrastructure operators, 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 energy infrastructure operators are there based in Switzerland?

RevenueBase identified 104 energy infrastructure operators 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?

Landis GYR, headquartered in Cham, tops this list with the largest team on record.

Which city has the most energy infrastructure operators?

Zurich leads with 10 headquartered companies, followed by Yverdon-Les-Bains (3) and Cham (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 6,913 verified decision-maker contacts tracked across these 104 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 16, 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.