Company lists · Data refreshed September 2026

Top 25 Sustainable development firms based in Switzerland

Name: Sustainable development firms based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 367 companies tracked

RevenueBase identified 367 sustainable development firms headquartered in Switzerland as of September 2026 and tracks 1,855 professional contacts across them, including 703 with verified work emails. Zurich is the largest hub.

This list covers sustainable development 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 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

367Companies

1,855Contacts tracked

703Verified emails

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The 25 largest sustainable development firms based in Switzerland

Ranked by team size

Top 25 of 367 sustainable development firms 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 sustainable development 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	Edifea SA	Indirect evidence	Châtelaine, SwitzerlandHQ checked Sep 22, 2026	51-200	83 contacts →
	Indirect evidence “EDIFEA pense, planifie et réalise vos projets immobiliers de qualité.” Source: RevenueBase Database · checked Sep 22, 2026
2	Thomaslloyd Group	Strong evidence	Stadtkreis 2, SwitzerlandHQ checked Sep 22, 2026	1,001-5,000	62 contacts →
	Strong 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 22, 2026
3	Infras	Strong evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	51-200	60 contacts →
	Strong evidence “INFRAS has been doing research and consulting focused on sustainable development since 1976.” Source: RevenueBase Database · checked Sep 22, 2026
4	Renera AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 22, 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 22, 2026
5	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
6	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
7	BG Consulting Engineers	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 22, 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 22, 2026
8	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
9	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
10	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
11	Resiq AG	Indirect evidence	Burgdorf, SwitzerlandHQ checked Sep 22, 2026	11-50	24 contacts →
	Indirect evidence “RESiQ setzt sich für den erfolgreichen Einsatz von erneuerbaren Ressourcen (RES) ein und ermöglicht durch intelligente technische Lösungen (iQ) deren effiziente und nachhaltige…” Source: RevenueBase Database · checked Sep 22, 2026
12	The Meeco Group	Indirect evidence	Zug, SwitzerlandHQ checked Sep 22, 2026	51-200	24 contacts →
	Indirect evidence “As a leader in clean renewable energy, meeco™ has provided clients with services and solutions for over 423 MW across three continents.” Source: RevenueBase Database · checked Sep 22, 2026
13	Gimelli Engineering AG	Indirect evidence	Zollikofen, SwitzerlandHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “We’re a purpose-driving and future-oriented engineering company based in the greater Berne area.” Source: RevenueBase Database · checked Sep 22, 2026
14	Anthesis Switzerland	Partial evidence	Geneva, SwitzerlandHQ checked Sep 22, 2026	51-200	21 contacts →
	Partial evidence “Anthesis is the sustainability activator.” Source: RevenueBase Database · checked Sep 22, 2026
15	Carbotech AG	Indirect evidence	Basel, SwitzerlandHQ checked Sep 22, 2026	11-50	21 contacts →
	Indirect evidence “Carbotech Inc.” Source: RevenueBase Database · checked Sep 22, 2026
16	Acting Responsibly	Indirect evidence	Biel, SwitzerlandHQ checked Sep 22, 2026	1-10	20 contacts →
	Indirect evidence “Acting Responsibly AG is a Swiss-based social enterprise dedicated to helping organizations develop strategic approaches to social responsibility.” Source: RevenueBase Database · checked Sep 22, 2026
17	Atba Architecture Énergie	Indirect evidence	Genève, SwitzerlandHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “L’architecture, l’habitat sain, l’environnement et les énergies renouvelables sont les matières au cœur de notre activité.” Source: RevenueBase Database · checked Sep 22, 2026
18	Green Energy Venture AG	Indirect evidence	Lyssach, SwitzerlandHQ checked Sep 22, 2026	51-200	20 contacts →
	Indirect evidence “Green Energy Venture is a leading advisory and services firm which operates along the value chain of renewable energies.” Source: RevenueBase Database · checked Sep 22, 2026
19	BHP Brugger And Partners LTD	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	11-50	18 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 Sep 22, 2026
20	Blossom ET Partenaires	Partial evidence	Genève, SwitzerlandHQ checked Sep 22, 2026	11-50	18 contacts →
	Partial evidence “Blossom et partenaires is a consultancy firm specializing in sustainability and responsible communication.” Source: RevenueBase Database · checked Sep 22, 2026
21	HMB Partners AG	Partial evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	11-50	16 contacts →
	Partial evidence “We are a company with core competencies in project development, project management and consultancy in the fields of buildings, spaces and energy.” Source: RevenueBase Database · checked Sep 22, 2026
22	Hl-Technik AG	Indirect evidence	Schaffhausen, SwitzerlandHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “Ihre Ansprüche sind unsere Ziele – deshalb entwickeln wir gemeinsam mit Ihnen die bestmögliche Lösung.” Source: RevenueBase Database · checked Sep 22, 2026
23	Energiebüro AG	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “energiebüro ist das Kompetenzzentrum für Solar- und Wasserkraft, Energieeffizienz und Gebäudesysteme.” Source: RevenueBase Database · checked Sep 22, 2026
24	Bloomup	Partial evidence	Lausanne, SwitzerlandHQ checked Sep 22, 2026	1-10	16 contacts →
	Partial evidence “bloomUp is a global consultancy at the forefront of sustainability, innovation and active living.” Source: RevenueBase Database · checked Sep 22, 2026
25	Adolf Krebs AG	Indirect evidence	Thun, SwitzerlandHQ checked Sep 22, 2026	51-200	15 contacts →
	Indirect evidence “Aber ebenso viel mit harten Kalkulationen, Energiemanagement, mit Wissen, was zu tun ist.” 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: sustainable development 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 sustainable development firms.
Partial evidence: Its own public description names part of sustainable development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable development 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 367 sustainable development firms based in Switzerland

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Sustainable development firms based in Switzerland at a glance

As of Sep 22, 2026

37.9%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

11.7%Largest-city concentration · Zurich

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

278

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 367 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 sustainable development 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 “sustainable development 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 sustainable development 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 sustainable development 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, 703 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.

Sustainable development firms by metro

Sustainable development firms in Zurich43

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 sustainable development 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 sustainable development firms are there based in Switzerland?

RevenueBase identified 367 sustainable development 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?

Edifea SA, headquartered in Chatelaine, tops this list with the largest team on record.

Which city has the most sustainable development firms?

Zurich leads with 43 headquartered companies, followed by Lausanne (23) and Geneva (18).

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 703 verified decision-maker contacts tracked across these 367 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.