Company lists · Data refreshed August 2026

Top 25 Climate tech software companies based in Switzerland

Name: Climate tech software companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 64 companies tracked

RevenueBase identified 64 climate tech software companies headquartered in Switzerland as of August 2026 and tracks 1,741 professional contacts across them, including 1,139 with verified work emails and 81 with mobile numbers. Zurich is the largest hub.

This list covers climate tech software 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, 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

64Companies

1,741Contacts tracked

1,139Verified emails

81Mobile numbers

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The 25 largest climate tech software companies based in Switzerland

Ranked by team size

Top 25 of 64 climate tech software companies 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 tech software companies: 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	DXT Commodities	Indirect evidence	Lugano, Switzerland	201-500	163 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 Aug 31, 2026
4	Signa-Terre SA	Indirect evidence	Geneve, Switzerland	11-50	48 contacts →
	Indirect evidence “The energy transition is a priority.” Source: RevenueBase Database · checked Aug 31, 2026
5	Ista Swiss AG	Indirect evidence	Oftringen, Switzerland	51-200	34 contacts →
	Indirect evidence “Die ista swiss ag ist seit 1973 eine führende Immobiliendienstleisterin in der Schweiz und spezialisiert auf intelligente Lösungen im Energie- und Ressourcenmanagement.” Source: RevenueBase Database · checked Aug 31, 2026
6	Smarthelio AI Agent For Solar & Bess	Partial evidence	Prilly, Switzerland	11-50	33 contacts →
	Partial evidence “Software to detect and predict failures, increase performance up to 10% & optimize O&M interventions costs by 80%.” Source: RevenueBase Database · checked Aug 31, 2026
7	Exnaton	Strong evidence	Zurich, Switzerland	11-50	31 contacts →
	Strong evidence “exnaton is a climate tech company empowering utilities to quickly launch smart electricity products – without the cost and complexity of IT overhauls.” Source: RevenueBase Database · checked Aug 31, 2026
8	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
9	Girsberger Informatik AG	Indirect evidence	Brunnen, Switzerland	11-50	16 contacts →
	Indirect evidence “Girsberger Informatik AG macht Schweizer Unternehmen mit hohem, leitungsgebundenen Energieumsatz effizienter.” Source: RevenueBase Database · checked Aug 31, 2026
10	Toucan	Partial evidence	Zug, Switzerland	11-50	13 contacts →
	Partial evidence “Toucan builds technology to unlock climate action at scale.” Source: RevenueBase Database · checked Aug 31, 2026
11	Azzera	Strong evidence	Zurich, Switzerland	1-10	12 contacts →
	Strong evidence “Azzera is a climate tech company helping aviation stakeholders meet their sustainability goals with innovative tools, emissions compliance support, and transparent access to…” Source: RevenueBase Database · checked Aug 31, 2026
12	Greenosoil AG	Partial evidence	Zug, Switzerland	11-50	11 contacts →
	Partial evidence “GreenoSoil – a pioneering Climate AgTech company dedicated to creating the largest geospatial digital data platform in agriculture - GreenO, focusing on the world's primary…” Source: RevenueBase Database · checked Aug 31, 2026
13	Climate Services LTD	Partial evidence	Fribourg, Switzerland	1-10	11 contacts →
	Partial evidence “Climate Services offers tools and support to help companties and other organizations to manage risk and identify opportunities related to climate change.” Source: RevenueBase Database · checked Aug 31, 2026
14	Ecospeed	Partial evidence	Wallisellen, Switzerland	11-50	11 contacts →
	Partial evidence “ECOSPEED ist mit über zwei Jahrzehnten Erfahrung einer der führenden internationalen Anbieter von Software und Dienstleistungen im Bereich des Corporate Carbon Footprint (CCF) und…” Source: RevenueBase Database · checked Aug 31, 2026
15	Sustainaccount	Partial evidence	Remote, Switzerland	1-10	11 contacts →
	Partial evidence “Sustainaccount empowers corporate, real estate, and infrastructure stakeholders with actionable insights to navigate and mitigate physical climate risks, enhancing the resilience…” Source: RevenueBase Database · checked Aug 31, 2026
16	Adastra Sustainability	Partial evidence	Geneva, Switzerland	11-50	10 contacts →
	Partial evidence “AdAstra is shifting the paradigm of agricultural supply chains with data solutions that change the way we understand agriculture’s impact on climate and nature.” Source: RevenueBase Database · checked Aug 31, 2026
17	E-Nno Switzerland SA	Indirect evidence	Carouge, Switzerland	11-50	10 contacts →
	Indirect evidence “E-nno développe et propose des solutions d’optimisation et de suivi énergétique pour les professionnels de l’immobilier et de la construction.” Source: RevenueBase Database · checked Aug 31, 2026
18	Mikujy	Indirect evidence	Neuchatel, Switzerland	1-10	10 contacts →
	Indirect evidence “Digital has become critical infrastructure for every organization.” Source: RevenueBase Database · checked Aug 31, 2026
19	Kyoto Technologies AG	Partial evidence	Zug, Switzerland	11-50	8 contacts →
	Partial evidence “Kyoto Technologies AG is a climate technology company based in Switzerland.” Source: RevenueBase Database · checked Aug 31, 2026
20	Elfero AG	Indirect evidence	Meisterschwanden Canton Of Zurich, Switzerland	11-50	7 contacts →
	Indirect evidence “elfero AG is a renewables & environment company based out of Lindenmattstrasse 9, Meisterschwanden, Canton of Aargau, Switzerland.” Source: RevenueBase Database · checked Aug 31, 2026
21	E4plus AG	Indirect evidence	Kriens, Switzerland	11-50	6 contacts →
	Indirect evidence “energie und mehr!” Source: RevenueBase Database · checked Aug 31, 2026
22	Crosstown H2r	Partial evidence	Baden, Switzerland	1-10	6 contacts →
	Partial evidence “Crosstown H2R AG is a ClimateTech company established in 2022 by serial entrepreneurs combined with global industry veterans in the gas turbine sector.” Source: RevenueBase Database · checked Aug 31, 2026
23	Inosens AG	Indirect evidence	Affoltern Am Albis, Switzerland	1-10	5 contacts →
	Indirect evidence “UNSER KNOW-HOW FÜR DEINE PROJEKTE Bessere Beratung, stärkere Konzepte, raffiniertere Technik: inosens macht dein Klima-Projekt effizienter.” Source: RevenueBase Database · checked Aug 31, 2026
24	Enermi	Partial evidence	Manno, Switzerland	1-10	5 contacts →
	Partial evidence “Operiamo nei settori energia e clima fornendo servizi di consulenza, informazione e sensibilizzazione per enti pubblici, proprietari immobiliari, professionisti e aziende.” Source: RevenueBase Database · checked Aug 31, 2026
25	Upgrid	Partial evidence	Zurich, Switzerland	1-10	5 contacts →
	Partial evidence “We're a Zurich-based Climate Fintech Startup.” 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 tech software companies. 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 tech software companies.
Partial evidence: Its own public description names part of climate tech software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate tech software companies. 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 64 climate tech software companies based in Switzerland

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Climate tech software companies based in Switzerland at a glance

As of Aug 31, 2026

65.4%Verified-email coverage

4.7%Mobile-number coverage

27.2Average contacts per company

1-10Median size (employees)

17.2%Largest-city concentration · Zurich

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

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 tech software companies, 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 tech software companies”. 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 tech software companies), 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 tech software 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 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, 1,139 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.

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 tech software companies, 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 tech software companies are there based in Switzerland?

RevenueBase identified 64 climate tech software companies 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 tech software companies?

Zurich leads with 11 headquartered companies, followed by Zug (6) and Geneva (5).

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 1,139 verified decision-maker contacts tracked across these 64 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.