Company lists · Data refreshed September 2026

Top 25 Decarbonization consultancies based in Switzerland

Name: Decarbonization consultancies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 489 companies tracked

RevenueBase identified 489 decarbonization consultancies headquartered in Switzerland as of September 2026 and tracks 5,684 professional contacts across them, including 2,693 with verified work emails. Zurich is the largest hub.

This list covers decarbonization consultancies 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 28, 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 28, 2026 86% judged on-target in blind review

489Companies

5,684Contacts tracked

2,693Verified emails

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The 25 largest decarbonization consultancies based in Switzerland

Ranked by team size

Top 25 of 489 decarbonization consultancies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decarbonization consultancies: 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	South Pole	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	501-1,000	811 contacts →
	Indirect evidence “South Pole is the world's leading carbon asset developer and climate consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
2	Varo Energy	Indirect evidence	SwitzerlandHQ checked Sep 28, 2026	1,001-5,000	557 contacts →
	Indirect evidence “VARO Energy (“VARO”) is a leading European energy transition company operating throughout the complete energy supply chain.” Source: RevenueBase Database · checked Sep 28, 2026
3	Climeworks	Indirect evidence	Opfikon, SwitzerlandHQ checked Sep 28, 2026	201-500	435 contacts →
	Indirect evidence “Climeworks is a leading high-quality carbon removal provider, combining decades of expertise in Direct Air Capture (DAC) technology with holistic carbon removal solutions.” Source: RevenueBase Database · checked Sep 28, 2026
4	Ecosecurities	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 28, 2026	51-200	406 contacts →
	Indirect evidence “EcoSecurities is a global leader in climate solutions, harnessing the power of nature, technology, and finance to accelerate decarbonisation efforts worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
5	Quantis	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 28, 2026	201-500	325 contacts →
	Indirect evidence “Quantis, part of BCG, is a sustainability consulting firm that helps organizations translate sustainability ambition into measurable business value.” Source: RevenueBase Database · checked Sep 28, 2026
6	SCB Group	Indirect evidence	Nyon, SwitzerlandHQ checked Sep 28, 2026	51-200	282 contacts →
	Indirect evidence “SCB is a low carbon market leader providing bespoke solutions to help customers achieve their climate goals, carbon neutrality and net-zero commitments.” Source: RevenueBase Database · checked Sep 28, 2026
7	Myclimate	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	51-200	164 contacts →
	Indirect evidence “myclimate is your partner for effective climate protection – both locally and globally.” Source: RevenueBase Database · checked Sep 28, 2026
8	DXT Commodities	Indirect evidence	Lugano, SwitzerlandHQ checked Sep 28, 2026	201-500	162 contacts →
	Indirect evidence “We are an international energy trading company committed to the global energy transition, both in the markets we operate in and the choices we make, as individuals, as a company…” Source: RevenueBase Database · checked Sep 28, 2026
9	Romande Energie Services SA	Indirect evidence	Préverenges, SwitzerlandHQ checked Sep 28, 2026	501-1,000	84 contacts →
	Indirect 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 28, 2026
10	Allcot	Indirect evidence	Zug, SwitzerlandHQ checked Sep 28, 2026	51-200	64 contacts →
	Indirect evidence “As part of the Karbon-X ecosystem, ALLCOT develops high-integrity climate projects and advises governments and enterprises with proven technical expertise.” Source: RevenueBase Database · checked Sep 28, 2026
11	Horizonte-Group AG	Indirect evidence	Luzern, SwitzerlandHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence “Management Consulting für die Energiewirtschaft Wir gestalten die Energiezukunft – mit innovativen Strategien, digitalen Lösungen und partnerschaftlicher Zusammenarbeit.” Source: RevenueBase Database · checked Sep 28, 2026
12	Renera AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect 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 28, 2026
13	Signa-Terre SA	Indirect evidence	Genève, SwitzerlandHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “The energy transition is a priority.” Source: RevenueBase Database · checked Sep 28, 2026
14	Weinmann-Energies SA	Indirect evidence	Echallens, SwitzerlandHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Source: RevenueBase Database · checked Sep 28, 2026
15	EH Group	Indirect evidence	Nyon, SwitzerlandHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “EH Group Engineering is focused on the design & production of our innovative & high performance fuel cell technology for a decarbonised future.” Source: RevenueBase Database · checked Sep 28, 2026
16	Lemon Consult AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
17	Swiss Climate	Indirect evidence	Bern, SwitzerlandHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “We advise companies and organisations in setting up holistic climate strategies and sustainability concepts.” Source: RevenueBase Database · checked Sep 28, 2026
18	Enersis	Indirect evidence	Bern, SwitzerlandHQ checked Sep 28, 2026	11-50	35 contacts →
	Indirect evidence “enersis digitale Lösungen helfen, die Energiewende zu planen, umzusetzen und alle Beteiligten zu vernetzen.” Source: RevenueBase Database · checked Sep 28, 2026
19	Sustainserv	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “Everything we do is designed to inspire meaningful change in the world every day.” Source: RevenueBase Database · checked Sep 28, 2026
20	Caeli Ingénierie	Indirect evidence	Carouge, SwitzerlandHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Bureau d'études CVCSE, Energie, Automatisme du bâtiment, MCR, Physique du bâtiment.” Source: RevenueBase Database · checked Sep 28, 2026
21	Energie-Agentur DER Wirtschaft Agence DE L Énergie Pour L Économie	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 28, 2026	51-200	31 contacts →
	Indirect evidence “Seit 2001 bieten wir unseren Teilnehmern unter der Einhaltung von Energieträger- und Produkteneutralität einen Rund-um-Service im Energie-Management mit bewährten und von Behörden…” Source: RevenueBase Database · checked Sep 28, 2026
22	Waldhauser Hermann AG	Indirect evidence	Münchenstein, SwitzerlandHQ checked Sep 28, 2026	51-200	30 contacts →
	Indirect evidence “Haustechnik ist eine komplexe Angelegenheit und steht in direktem Zusammenhang mit Benutzerzufriedenheit, Betriebssicherheit, Erstellungs- und Betriebskosten sowie Umweltbelastung.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ampere Dynamic	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Als Experte für nachhaltige und schlüsselfertige Energielösungen im Industrie & Gewerbesektor denken wir Energie ganzheitlich.” Source: RevenueBase Database · checked Sep 28, 2026
24	BG Consulting Engineers	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 28, 2026	501-1,000	28 contacts →
	Indirect evidence “Recognised for its expertise in prestigious projects such as the Lyon-Turin Base Tunnel, the Grand Paris Express, the Rolex Learning Center in Lausanne, the Institut Curie in…” Source: RevenueBase Database · checked Sep 28, 2026
25	H2 Energy	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “H2 Energy was founded in 2014 with the goal of playing an active role stopping climate change.” Source: RevenueBase Database · checked Sep 28, 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: decarbonization consultancies. 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 decarbonization consultancies.
Partial evidence: Its own public description names part of decarbonization consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decarbonization consultancies. 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 489 decarbonization consultancies based in Switzerland

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Decarbonization consultancies based in Switzerland at a glance

As of Sep 28, 2026

47.4%Verified-email coverage

11.6Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · Zurich

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

366

11-50

51-200

201-500

501-1,000

1,001-5,000

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 489 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 decarbonization consultancies, 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 “decarbonization consultancies”. 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 decarbonization consultancies), 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 decarbonization consultancies, 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, 2,693 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 28, 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.

Decarbonization consultancies by metro

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 decarbonization consultancies, 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 decarbonization consultancies are there based in Switzerland?

RevenueBase identified 489 decarbonization consultancies 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?

South Pole, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most decarbonization consultancies?

Zurich leads with 67 headquartered companies, followed by Lausanne (28) and Geneva (22).

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 2,693 verified decision-maker contacts tracked across these 489 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 28, 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.