Company lists · Data refreshed September 2026
Top 25 Renewable energy consultancy companies based in Switzerland
RevenueBase identified 401 renewable energy consultancy companies headquartered in Switzerland as of September 2026 and tracks 2,435 professional contacts across them, including 904 with verified work emails and 78 with mobile numbers. Zurich is the largest hub.
This list covers renewable energy consultancy companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest renewable energy consultancy companies based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 98 | ||||
“At Galileo, we are delivering long-term green power solutions to energy-hungry customers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | Soltop Energie AGPartial evidence | 84 | |||
“Erneuerbare Energien aus Sonne, Erde, Luft und Wasser nutzbar machen: Diese Kernaufgabe erfüllt die Soltop Energie AG bereits seit über 40 Jahren konsequent und erfolgreich.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 62 | ||||
“Founded in 2003, ThomasLloyd is a vertically integrated sustainable energy and technology solutions provider, integrating development, investment, operations, and technology on a…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Soleol SAIndirect evidence | 59 | |||
“Soleol SA est une entreprise fribourgeoise basée à Estavayer-le-Lac, spécialisée dans les énergies renouvelables et parmi les leaders en Suisse dans la réalisation et…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 54 | ||||
“Renera AG (formerly Energie Zukunft Schweiz AG) is a leading force on the road to a fully renewable energy world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 50 | ||||
“Willkommen bei Planeco GmbH – deiner wegweisenden Partnerin für innovative Energielösungen!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 37 | ||||
“Lemon Consult is a specialized engineering and consulting office for energy efficiency, sustainability and renewable energies in the area of building and technical systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 36 | ||||
“clevergie konzipiert und baut Erneuerbare-Energie-Anlagen rund erneuerbare Energieanlagen rund um Photovoltaik, Wärmetechnik und E-Mobilität.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | RE CAP Global Investors AGStrong evidence | 35 | |||
“re:cap global investors is an independent, internationally-oriented M&A advisor and asset manager for renewable energies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 | ||||
“Als Experte für nachhaltige und schlüsselfertige Energielösungen im Industrie & Gewerbesektor denken wir Energie ganzheitlich.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 | ||||
“Emmar SA est un bureau d’ingénieurs spécialisés dans le domaine de l’électricité, des énergies renouvelables ainsi que des nouvelles technologies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 27 | ||||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Tecnoservice Engineering SAIndirect evidence | 26 | |||
“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.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 25 | ||||
“Das Vernetzen der Fachgebiete Strategie & Konzept, Bauherrentreuhand, Energiecontrolling und Nebenkosten ist das Fundament unserer Kernkompetenz.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Weisskopf Partner GmbhPartial evidence | 25 | |||
“Die Steigerung von Energieeffizienz und den Einsatz von erneuerbaren Energien verfolgen wir mit Herzblut.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 24 | ||||
“Das Unternehmen BE Netz AG ist spezialisiert auf Strom und Wärme aus der Sonne.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 | ||||
“Seit über 40 Jahren dreht sich bei SunTechnics Fabrisolar alles um das Thema erneuerbare Energien.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 | ||||
“RESiQ setzt sich für den erfolgreichen Einsatz von erneuerbaren Ressourcen (RES) ein und ermöglicht durch intelligente technische Lösungen (iQ) deren effiziente und nachhaltige…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 | ||||
“As a leader in clean renewable energy, meeco™ has provided clients with services and solutions for over 423 MW across three continents.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 | ||||
“Wir sind ein national tätiges, anerkanntes Ingenieurbüro für Energie- und Gebäudetechnikplanungen, führend in unseren Kompetenzen und Dienstleistungen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 | ||||
“Carbotech Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 | ||||
“Green Energy Venture is a leading advisory and services firm which operates along the value chain of renewable energies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 | ||||
“SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 | ||||
“Mit über 90 erfahrene Mitarbeitenden ist die Guggisberg Kurz AG in der Lage sowohl grosse Objekte auszuführen, als auch sehr flexibel zu agieren.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | STG Swiss Technik GroupPartial evidence | 17 | |||
“STG Energy | Spécialiste des énergies renouvelables en Suisse Nous accompagnons particuliers, entreprises, collectivités et agriculteurs dans leur transition énergétique, avec des…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 401 renewable energy consultancy companies based in Switzerland
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Renewable energy consultancy companies based in Switzerland at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 renewable energy consultancy companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Switzerland whose own description of what they do matches “renewable energy consultancy companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among renewable energy consultancy companies, 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 an evidence 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, 904 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 5, 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.
Renewable energy consultancy companies by metro
- Renewable energy consultancy companies in Zurich32
Frequently asked
How many renewable energy consultancy companies are there based in Switzerland?
RevenueBase identified 401 renewable energy consultancy companies 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?
Galileo, headquartered in Zurich, tops this list with the largest team on record.
Which city has the most renewable energy consultancy companies?
Zurich leads with 32 headquartered companies, followed by Geneve (12) and Geneva (11).
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 904 verified decision-maker contacts tracked across these 401 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 5, 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.
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