Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 595 companies tracked

RevenueBase identified 595 energy infrastructure consulting firms headquartered in Switzerland as of September 2026 and tracks 8,815 professional contacts across them, including 4,217 with verified work emails. Zurich is the largest hub.

This list covers energy infrastructure consulting 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 21, 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 21, 2026 86% judged on-target in blind review

595Companies

8,815Contacts tracked

4,217Verified emails

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The 25 largest energy infrastructure consulting firms based in Switzerland

Ranked by team size

Top 25 of 595 energy infrastructure consulting firms based in Switzerland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consulting 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	BKW AG	Strong evidence	Bern, SwitzerlandHQ checked Sep 21, 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 21, 2026
2	Linxon	Partial evidence	Baden, SwitzerlandHQ checked Sep 21, 2026	501-1,000	771 contacts →
	Partial evidence “Linxon, a joint venture by AtkinsRéalis and Hitachi Energy.” Source: RevenueBase Database · checked Sep 21, 2026
3	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 21, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 21, 2026
4	Pini Group	Indirect evidence	Grono, SwitzerlandHQ checked Sep 21, 2026	1,001-5,000	471 contacts →
	Indirect evidence “We are a comprehensive network of specialists, expanding as we integrate talent and expertise.” Source: RevenueBase Database · checked Sep 21, 2026
5	Gruner Stucky LTD	Strong evidence	Renens, SwitzerlandHQ checked Sep 21, 2026	1,001-5,000	288 contacts →
	Strong evidence “Gruner Stucky Ltd (formerly Stucky Ltd) is a Swiss-based international consulting engineering company active in energy, infrastructure and buildings.” Source: RevenueBase Database · checked Sep 21, 2026
6	Lombardi Engineering Switzerland	Partial evidence	Bellinzona-giubiasco, SwitzerlandHQ checked Sep 21, 2026	201-500	276 contacts →
	Partial evidence “Lombardi Switzerland is a leading engineering company with over 400 skilled engineers and technicians delivering multidisciplinary and specialized services in infrastructure and…” Source: RevenueBase Database · checked Sep 21, 2026
7	Holinger	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 21, 2026	501-1,000	265 contacts →
	Indirect evidence “For over 90 years, HOLINGER has been solving engineering and scientific tasks in various specialist areas related to the water cycle.” Source: RevenueBase Database · checked Sep 21, 2026
8	Viteos SA	Indirect evidence	Neuchâtel, SwitzerlandHQ checked Sep 21, 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 21, 2026
9	Capefront Energies	Partial evidence	Carouge, SwitzerlandHQ checked Sep 21, 2026	201-500	190 contacts →
	Partial evidence “Capefront Energies: A Global Leader in the Energy Industry Capefront Energies is a prominent global leader in the energy industry, dedicated to delivering top-tier recruitment…” Source: RevenueBase Database · checked Sep 21, 2026
10	Drees & Sommer Switzerland	Strong evidence	Zürich, SwitzerlandHQ checked Sep 21, 2026	201-500	164 contacts →
	Strong evidence “Drees & Sommer Switzerland is a consulting company providing a single source of consultation and implementation services for the real estate, infrastructure and industrial markets.” Source: RevenueBase Database · checked Sep 21, 2026
11	IUB Engineering LTD	Partial evidence	Bern 14, SwitzerlandHQ checked Sep 21, 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 21, 2026
12	Planair	Indirect evidence	La Sagne, SwitzerlandHQ checked Sep 21, 2026	51-200	135 contacts →
	Indirect evidence “Ingénieurs de la transition énergétique depuis 1985.” Source: RevenueBase Database · checked Sep 21, 2026
13	Esolva AG	Partial evidence	Weinfelden, SwitzerlandHQ checked Sep 21, 2026	51-200	91 contacts →
	Partial evidence “Wir sind deine professionelle Partnerin mit langjähriger Praxiserfahrung in der Energie- und Industrie-Branche.” Source: RevenueBase Database · checked Sep 21, 2026
14	Romande Energie Services SA	Partial evidence	Préverenges, SwitzerlandHQ checked Sep 21, 2026	501-1,000	84 contacts →
	Partial evidence “Experts dans le domaine des services énergétiques et de la décarbonisation, les 500 collaborateurs de Romande Energie Services SA, société du Groupe Romande Energie, sont à votre…” Source: RevenueBase Database · checked Sep 21, 2026
15	F. Borner AG	Partial evidence	Reiden, SwitzerlandHQ checked Sep 21, 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 21, 2026
16	Tech Building	Partial evidence	Perly - Genève, SwitzerlandHQ checked Sep 21, 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 21, 2026
17	Ciel Electricité SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 21, 2026	51-200	74 contacts →
	Indirect evidence “CIEL est une marque d’Eiffage Énergie Systèmes Suisse.” Source: RevenueBase Database · checked Sep 21, 2026
18	INP Schweiz AG	Indirect evidence	Turgi, SwitzerlandHQ checked Sep 21, 2026	51-200	71 contacts →
	Indirect evidence “We offer engineering services in the fields of power conversion, medium voltage & industry, high voltage and power generation.” Source: RevenueBase Database · checked Sep 21, 2026
19	Betelec SA	Indirect evidence	Villars-ste-croix, SwitzerlandHQ checked Sep 21, 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 21, 2026
20	Enertrans Switzerland AG	Indirect evidence	Niedergösgen, SwitzerlandHQ checked Sep 21, 2026	51-200	69 contacts →
	Indirect evidence “Grids for tomorrow, shaped today – unsere Ideen formen die Netzlösungen von morgen.” Source: RevenueBase Database · checked Sep 21, 2026
21	Boess Gruppe	Indirect evidence	Bern, SwitzerlandHQ checked Sep 21, 2026	51-200	67 contacts →
	Indirect evidence “Wir sind nicht nur Elektroingenieure.” Source: RevenueBase Database · checked Sep 21, 2026
22	Thomaslloyd Group	Partial evidence	Stadtkreis 2, SwitzerlandHQ checked Sep 21, 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 21, 2026
23	Horizonte-Group AG	Strong evidence	Luzern, SwitzerlandHQ checked Sep 21, 2026	51-200	58 contacts →
	Strong evidence “Management Consulting für die Energiewirtschaft Wir gestalten die Energiezukunft – mit innovativen Strategien, digitalen Lösungen und partnerschaftlicher Zusammenarbeit.” Source: RevenueBase Database · checked Sep 21, 2026
24	SINEF	Indirect evidence	Givisiez, SwitzerlandHQ checked Sep 21, 2026	51-200	55 contacts →
	Indirect evidence “SINEF SA propose des services et des conseils dans les domaines de l’eau et de l'énergie pour les collectivités ainsi que pour les particuliers.” Source: RevenueBase Database · checked Sep 21, 2026
25	Renera AG	Partial evidence	Basel, SwitzerlandHQ checked Sep 21, 2026	51-200	54 contacts →
	Partial evidence “Renera AG (formerly Energie Zukunft Schweiz AG) is a leading force on the road to a fully renewable energy world.” Source: RevenueBase Database · checked Sep 21, 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 consulting 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 energy infrastructure consulting firms.
Partial evidence: Its own public description names part of energy infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure consulting 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 595 energy infrastructure consulting firms based in Switzerland

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Energy infrastructure consulting firms based in Switzerland at a glance

As of Sep 21, 2026

47.8%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

9.9%Largest-city concentration · Zurich

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

377

11-50

143

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 595 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 consulting 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 “energy infrastructure consulting 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 energy infrastructure consulting 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 energy infrastructure consulting 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, 4,217 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 21, 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.

Energy infrastructure consulting firms by metro

Energy infrastructure consulting firms in Zurich59

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 consulting 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 energy infrastructure consulting firms are there based in Switzerland?

RevenueBase identified 595 energy infrastructure consulting 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?

BKW AG, headquartered in Bern, tops this list with the largest team on record.

Which city has the most energy infrastructure consulting firms?

Zurich leads with 59 headquartered companies, followed by Lausanne (18) and Geneva (15).

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 4,217 verified decision-maker contacts tracked across these 595 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 21, 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.