Company lists · Data refreshed September 2026

Top 25 Sustainability consultants based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 594 companies tracked

RevenueBase identified 594 sustainability consultants headquartered in Switzerland as of September 2026 and tracks 4,605 professional contacts across them, including 1,969 with verified work emails. Zurich is the largest hub.

This list covers sustainability consultants 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 22, 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 22, 2026 86% judged on-target in blind review

594Companies

4,605Contacts tracked

1,969Verified emails

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The 25 largest sustainability consultants based in Switzerland

Ranked by team size

Top 25 of 594 sustainability consultants based in Switzerland, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability consultants: 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	Quantis	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 22, 2026	201-500	325 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 Sep 22, 2026
2	Holinger	Indirect evidence	Liestal, SwitzerlandHQ checked Sep 22, 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 22, 2026
3	Myclimate	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	51-200	164 contacts →
	Indirect evidence “myclimate is your partner for effective climate protection – both locally and globally.” Source: RevenueBase Database · checked Sep 22, 2026
4	Gartenmann Engineering AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 22, 2026	51-200	71 contacts →
	Indirect evidence “Wir sind ein Team von Spezialingenieuren/innen und Berater/innen.” Source: RevenueBase Database · checked Sep 22, 2026
5	Intep Integrale Planung Gmbh	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	51-200	65 contacts →
	Indirect evidence “Intep ist eine interdisziplinäre Beratungs- und Forschungsunternehmung für Umwelt, Wirtschaft und Gesellschaft.” Source: RevenueBase Database · checked Sep 22, 2026
6	Infras	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	51-200	60 contacts →
	Indirect evidence “INFRAS has been doing research and consulting focused on sustainable development since 1976.” Source: RevenueBase Database · checked Sep 22, 2026
7	Econetta	Indirect evidence	Schlieren, SwitzerlandHQ checked Sep 22, 2026	51-200	55 contacts →
	Indirect evidence “Econetta ist ein führendes Schweizer Umweltberatungsunternehmen.” Source: RevenueBase Database · checked Sep 22, 2026
8	Dynargie	Indirect evidence	Geneva, SwitzerlandHQ checked Sep 22, 2026	51-200	51 contacts →
	Indirect evidence “WELCOME TO THE HUMAN SIDE OF BUSINESS!” Source: RevenueBase Database · checked Sep 22, 2026
9	Weinmann-Energies SA	Indirect evidence	Echallens, SwitzerlandHQ checked Sep 22, 2026	51-200	47 contacts →
	Indirect evidence “Weinmann-Energies est un bureau d’ingénieurs-conseils EPFL-SIA-SuisseIng.” Source: RevenueBase Database · checked Sep 22, 2026
10	Student Impact	Partial evidence	St Gallen, SwitzerlandHQ checked Sep 22, 2026	51-200	47 contacts →
	Partial evidence “Student Impact is the student-led consultancy specializing in sustainable business at the University of St.Gallen.” Source: RevenueBase Database · checked Sep 22, 2026
11	Strategia Partners	Indirect evidence	Stadtkreis 1 Altstadt, SwitzerlandHQ checked Sep 22, 2026	11-50	44 contacts →
	Indirect evidence “Strategia Partners is a strategy consulting specialist which supports its clients to define & implement sustainable long-term growth strategies.” Source: RevenueBase Database · checked Sep 22, 2026
12	Anex Ingenieure AG	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 22, 2026	51-200	40 contacts →
	Indirect evidence “Anex Ingenieure ist ein Beratungs- und Planungsunternehmen für Gebäudetechnik, das ressourcenschonende Energie- und Medienkonzepte für Prozesse, Gebäude und Areale entwickelt.” Source: RevenueBase Database · checked Sep 22, 2026
13	Kontextplan AG	Indirect evidence	Bern, SwitzerlandHQ checked Sep 22, 2026	51-200	39 contacts →
	Indirect evidence “Seit der Gründung von Kontextplan 2008 engagieren wir uns für Lebensräume mit Qualität in Städten und Gemeinden.” Source: RevenueBase Database · checked Sep 22, 2026
14	Lemon Consult AG	Partial evidence	Zürich, SwitzerlandHQ checked Sep 22, 2026	11-50	37 contacts →
	Partial 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 22, 2026
15	Swiss Climate	Partial evidence	Bern, SwitzerlandHQ checked Sep 22, 2026	11-50	35 contacts →
	Partial evidence “We advise companies and organisations in setting up holistic climate strategies and sustainability concepts.” Source: RevenueBase Database · checked Sep 22, 2026
16	Sustainserv	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 22, 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 22, 2026
17	Renera Energy	Partial evidence	Basel, SwitzerlandHQ checked Sep 22, 2026	51-200	32 contacts →
	Partial evidence “We are an independent Renewable Energy consultancy, project developer, trader and operator with offices in Switzerland, Italy and Germany.” Source: RevenueBase Database · checked Sep 22, 2026
18	Ecotec Environnement SA	Indirect evidence	Geneve, SwitzerlandHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “ECOTEC Environnement SA is a renewables and environment company based out of Rue Francois-Ruchon 3, Geneve, Geneve, Switzerland.” Source: RevenueBase Database · checked Sep 22, 2026
19	Waldhauser Hermann AG	Indirect evidence	Münchenstein, SwitzerlandHQ checked Sep 22, 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 22, 2026
20	ECOS	Indirect evidence	Basel, SwitzerlandHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “Since 1987, ecos creates added value for the environment, the society and the economy as a whole with the aim of improving livelihoods over the long term.” Source: RevenueBase Database · checked Sep 22, 2026
21	Büro FÜR Bauökonomie AG	Indirect evidence	Kriens, SwitzerlandHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “Die Büro für Bauökonomie AG ist eine Tochter der Emch+Berger ImmoConsult AG und ein Unternehmen der 1953 gegründeten Emch+Berger Gruppe.” Source: RevenueBase Database · checked Sep 22, 2026
22	EFP AG	Indirect evidence	Regensdorf, SwitzerlandHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “EFP AG Ingenieure Planer Geometer setzen sich für zukunftsgerichtete Ingenieurlösungen ein, die den Bedürfnissen der Nutzerinnen und Nutzer genauso verpflichtet sind wie einem…” Source: RevenueBase Database · checked Sep 22, 2026
23	Enastra AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Das Vernetzen der Fachgebiete Strategie & Konzept, Bauherrentreuhand, Energiecontrolling und Nebenkosten ist das Fundament unserer Kernkompetenz.” Source: RevenueBase Database · checked Sep 22, 2026
24	Weisskopf Partner Gmbh	Indirect evidence	Zürich, SwitzerlandHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Die Steigerung von Energieeffizienz und den Einsatz von erneuerbaren Energien verfolgen wir mit Herzblut.” Source: RevenueBase Database · checked Sep 22, 2026
25	Idee 21	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 22, 2026	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 Sep 22, 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: sustainability consultants. 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 sustainability consultants.
Partial evidence: Its own public description names part of sustainability consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability consultants. 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 594 sustainability consultants based in Switzerland

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Sustainability consultants based in Switzerland at a glance

As of Sep 22, 2026

42.8%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

15.7%Largest-city concentration · Zurich

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

474

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 594 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 sustainability consultants, 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 “sustainability consultants”. 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 sustainability consultants), 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 sustainability consultants, 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, 1,969 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 22, 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.

Sustainability consultants by metro

Sustainability consultants in Zurich93
Sustainability consultants in Lausanne41
Sustainability consultants in Geneva32
Sustainability consultants in Bern25

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 sustainability consultants, 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 sustainability consultants are there based in Switzerland?

RevenueBase identified 594 sustainability consultants 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?

Quantis, headquartered in Lausanne, tops this list with the largest team on record.

Which city has the most sustainability consultants?

Zurich leads with 93 headquartered companies, followed by Lausanne (41) and Geneva (32).

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 1,969 verified decision-maker contacts tracked across these 594 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 22, 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.