Company lists · Data refreshed August 2026

Top 25 Climate change consulting firms based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 286 companies tracked

RevenueBase identified 286 climate change consulting firms headquartered in Switzerland as of August 2026 and tracks 2,810 professional contacts across them, including 1,425 with verified work emails and 143 with mobile numbers. Zurich is the largest hub.

This list covers climate change 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

286Companies

2,810Contacts tracked

1,425Verified emails

143Mobile numbers

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The 25 largest climate change consulting firms based in Switzerland

Ranked by team size

Top 25 of 286 climate change consulting firms based in Switzerland, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to climate change 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	South Pole	Partial evidence	Zurich, Switzerland	501-1,000	802 contacts →
	Partial evidence “South Pole is the world's leading carbon asset developer and climate consultancy.” Source: RevenueBase Database · checked Aug 31, 2026
2	Climatepartner	Strong evidence	Zurich, Switzerland	501-1,000	374 contacts →
	Strong evidence “ClimatePartner supports companies in climate action: With our solution combining software and consulting, we support our clients in making a contribution to climate action and…” Source: RevenueBase Database · checked Aug 31, 2026
3	Quantis	Partial evidence	Lausanne, Switzerland	201-500	332 contacts →
	Partial evidence “Quantis, part of BCG, is a sustainability consulting firm that helps organizations translate sustainability ambition into measurable business value.” Source: RevenueBase Database · checked Aug 31, 2026
4	Jauslin Stebler AG	Indirect evidence	Zurich, Switzerland	51-200	108 contacts →
	Indirect evidence “Die komplexen Rahmenbedingungen erfordern eine ganzheitliche Sicht der Probleme, kreative Prozesse und eine entsprechend eingespielte Organisation.” Source: RevenueBase Database · checked Aug 31, 2026
5	Infras	Partial evidence	Bern, Switzerland	51-200	61 contacts →
	Partial evidence “INFRAS has been doing research and consulting focused on sustainable development since 1976.” Source: RevenueBase Database · checked Aug 31, 2026
6	Ecosens AG	Indirect evidence	Wallisellen, Switzerland	51-200	41 contacts →
	Indirect evidence “Langjährige Erfahrung und Nähe zu aktuellen Entwicklungen in sämtlichen umweltrelevanten Fragestellungen machen Ecosens zum führenden Beratungsunternehmen.” Source: RevenueBase Database · checked Aug 31, 2026
7	Waldhauser Hermann AG	Indirect evidence	Munchenstein, Switzerland	51-200	31 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 Aug 31, 2026
8	Idee 21	Indirect evidence	Lausanne, Switzerland	11-50	25 contacts →
	Indirect evidence “IDEE21 est un bureau spécialisé dans la conception et la mise en œuvre de stratégies participatives au service du développement durable.” Source: RevenueBase Database · checked Aug 31, 2026
9	Vema S.A. Vema Carbon	Partial evidence	Fribourg, Switzerland	11-50	23 contacts →
	Partial evidence “VEMA CARBON is a practical expert in climate solutions.” Source: RevenueBase Database · checked Aug 31, 2026
10	Carbotech AG	Indirect evidence	Switzerland	11-50	21 contacts →
	Indirect evidence “Carbotech Inc.” Source: RevenueBase Database · checked Aug 31, 2026
11	Anthesis Switzerland	Indirect evidence	Geneva, Switzerland	51-200	20 contacts →
	Indirect evidence “Anthesis is the sustainability activator.” Source: RevenueBase Database · checked Aug 31, 2026
12	Econcept AG	Indirect evidence	Zurich, Switzerland	11-50	20 contacts →
	Indirect evidence “Das ist econcept - vernetztes Wissen für nachhaltige Entwicklungen Forschung / Beratung / Evaluation econcept ist ein national und international tätiges Forschungs- und…” Source: RevenueBase Database · checked Aug 31, 2026
13	BHP Brugger And Partners LTD	Indirect evidence	Zurich, Switzerland	11-50	19 contacts →
	Indirect evidence “For more than a quarter century, we have advised and supported our clients in the private sector, the public sector, and throughout society in the fields of Corporate Social…” Source: RevenueBase Database · checked Aug 31, 2026
14	SB Technique SA	Partial evidence	Geneve, Switzerland	11-50	18 contacts →
	Partial evidence “SB technique est un bureau d'Ingénieur Conseil en chauffage, ventilation, climatisation et sécurité du bâtiment développant des concepts énergétiques ambitieux pour des…” Source: RevenueBase Database · checked Aug 31, 2026
15	WSP Suisse AG	Indirect evidence	Luzern, Switzerland	201-500	18 contacts →
	Indirect evidence “Seit über 130 Jahren wächst WSP kontinuierlich und ist heute auf der ganzen Welt vertreten.” Source: RevenueBase Database · checked Aug 31, 2026
16	Climada Technologies	Partial evidence	Zurich, Switzerland	1-10	17 contacts →
	Partial evidence “CLIMADA Technologies - accelerating the global mindset towards anticipating climate impact and adaptation” Supporting a global client base in climate adaptation and resilience…” Source: RevenueBase Database · checked Aug 31, 2026
17	BSS Volkswirtschaftliche Beratung	Indirect evidence	Basel, Switzerland	11-50	17 contacts →
	Indirect evidence “BSS hat sich seit der Gründung im Jahr 1992 zu einem der führenden Schweizer Beratungsbüros für Fragen zu Wirtschaft, Umwelt und Gesellschaft entwickelt.” Source: RevenueBase Database · checked Aug 31, 2026
18	Adolf Krebs AG	Indirect evidence	Grund Bei Gstaad, Switzerland	51-200	16 contacts →
	Indirect evidence “Aber ebenso viel mit harten Kalkulationen, Energiemanagement, mit Wissen, was zu tun ist.” Source: RevenueBase Database · checked Aug 31, 2026
19	Blossom ET Partenaires	Indirect evidence	Geneve, Switzerland	11-50	16 contacts →
	Indirect evidence “Blossom et partenaires is a consultancy firm specializing in sustainability and responsible communication.” Source: RevenueBase Database · checked Aug 31, 2026
20	Drosera Ecologie Appliquée SA	Indirect evidence	Sion, Switzerland	11-50	14 contacts →
	Indirect evidence “Fondé en 1991, le bureau d’étude Drosera Ecologie Appliquée SA met au service des collectivités publiques et des entreprises privées ses compétences dans le domaine de…” Source: RevenueBase Database · checked Aug 31, 2026
21	Ipso ECO AG	Indirect evidence	Rothenburg, Switzerland	11-50	12 contacts →
	Indirect evidence “Wir sind ein unabhängiges Beratungsunternehmen für Umweltfragen.” Source: RevenueBase Database · checked Aug 31, 2026
22	Bureau D'études Impact SA	Indirect evidence	Martigny, Switzerland	11-50	12 contacts →
	Indirect evidence “Depuis sa création en 1986, le bureau d'études Impact SA a réalisé et coordonné de nombreux dossiers d'impact sur l'environnement.” Source: RevenueBase Database · checked Aug 31, 2026
23	Ecoscan SA	Indirect evidence	Chavannes, Switzerland	11-50	11 contacts →
	Indirect evidence “ECOSCAN SA est situé à Lausanne et est spécialisée dans les études en environnement.” Source: RevenueBase Database · checked Aug 31, 2026
24	Idealp SA	Indirect evidence	Sion, Switzerland	11-50	10 contacts →
	Indirect evidence “Le bureau IDEALP a été formé en juin 2001 par 2 associés, Philippe Bianco et François Genolet.” Source: RevenueBase Database · checked Aug 31, 2026
25	Clarmondial	Indirect evidence	Zurich, Switzerland	1-10	10 contacts →
	Indirect evidence “Clarmondial is an independent investment advisory company that focuses on practical, profitable and creative solutions for social and environmental businesses and their funders.” Source: RevenueBase Database · checked Aug 31, 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: climate change 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 climate change consulting firms.
Partial evidence: Its own public description names part of climate change consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate change 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 286 climate change consulting firms based in Switzerland

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Climate change consulting firms based in Switzerland at a glance

As of Aug 31, 2026

50.7%Verified-email coverage

5.1%Mobile-number coverage

9.8Average contacts per company

1-10Median size (employees)

15.4%Largest-city concentration · Zurich

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

238

11-50

51-200

201-500

501-1,000

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 climate change 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 “climate change 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 climate change 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 climate change 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, 1,425 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 August 31, 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.

Climate change consulting firms by metro

Climate change consulting firms in Zurich44
Climate change consulting firms in Geneva28

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 climate change 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 climate change consulting firms are there based in Switzerland?

RevenueBase identified 286 climate change consulting firms headquartered in Switzerland as of August 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 climate change consulting firms?

Zurich leads with 44 headquartered companies, followed by Geneva (28) and Lausanne (20).

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 1,425 verified decision-maker contacts tracked across these 286 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.