Company lists · Data refreshed August 2026

Top 25 Climate tech software companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 2,996 companies tracked

RevenueBase identified 2,996 climate tech software companies worldwide as of August 2026 and tracks 53,807 professional contacts across them, including 21,139 with verified work emails and 6,924 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers climate tech software companies worldwide, 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. Country and city lists for climate tech software companies follow the table.

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

2,996Companies

53,807Contacts tracked

21,139Verified emails

6,924Mobile numbers

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The 25 largest climate tech software companies worldwide

Ranked by team size

Top 25 of 2,996 climate tech software companies worldwide, 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	Carrier	Partial evidence	Palm Beach Gardens, FL, US	10001+	7,703 contacts →
	Partial evidence “Carrier is a global leader in intelligent climate and energy solutions, pioneering sustainable innovations in climate technologies.” Source: RevenueBase Database · checked Aug 31, 2026
2	GE Digital	Partial evidence	San Ramon, CA, US	1,001-5,000	1,773 contacts →
	Partial evidence “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: RevenueBase Database · checked Aug 31, 2026
3	Gruppo AB	Indirect evidence	Guelph, ON, CA	1,001-5,000	1,076 contacts →
	Indirect evidence “Since 1981, AB has tackled the challenges posed by energy sustainability, working alongside our customers to improve their competitiveness while saving energy and reducing…” Source: RevenueBase Database · checked Aug 31, 2026
4	Wärtsilä Energy	Indirect evidence	Helsinki, FI	10001+	948 contacts →
	Indirect evidence “Wärtsilä leads the transition towards a 100% renewable energy future.” Source: RevenueBase Database · checked Aug 31, 2026
5	Nextracker INC	Indirect evidence	Fremont, CA, US	501-1,000	935 contacts →
	Indirect evidence “Since day one, Nextracker’s mission has been to transition the world to affordable, renewable power, by developing the highest-performing and resilient solar tracking technologies…” Source: RevenueBase Database · checked Aug 31, 2026
6	Anthesis Group	Indirect evidence	Adelaide, AU	1,001-5,000	887 contacts →
	Indirect evidence “Anthesis guides clients to sustainable performance.” Source: RevenueBase Database · checked Aug 31, 2026
7	South Pole	Partial evidence	Zurich, CH	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
8	Watershed	Indirect evidence	San Francisco, CA, US	201-500	537 contacts →
	Indirect evidence “Watershed is the enterprise sustainability platform.” Source: RevenueBase Database · checked Aug 31, 2026
9	Palmetto	Partial evidence	Charlotte, NC, US	201-500	533 contacts →
	Partial evidence “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Source: RevenueBase Database · checked Aug 31, 2026
10	Westport Fuel Systems	Partial evidence	Vancouver, BC, CA	51-200	477 contacts →
	Partial evidence “Westport is a clean-tech innovation company, providing simplified solutions to decarbonize.” Source: RevenueBase Database · checked Aug 31, 2026
11	Chakr Innovation	Indirect evidence	Gurugram, IndiaHQ checked Aug 31, 2026	501-1,000	476 contacts →
	Indirect evidence “Chakr Innovation is a pioneering Indian cleantech startup, founded by IIT Delhi graduates, dedicated to revolutionizing air quality with cutting-edge material science technology.” Source: RevenueBase Database · checked Aug 31, 2026
12	Osapiens	Partial evidence	Mannheim, DE	501-1,000	474 contacts →
	Partial evidence “osapiens – one platform for sustainable growth osapiens develops software that empowers companies to drive sustainable growth across their entire value chain.” Source: RevenueBase Database · checked Aug 31, 2026
13	Stem, INC	Indirect evidence	Berlin, DE	501-1,000	432 contacts →
	Indirect evidence “At Stem, we’re reimagining technology to drive the energy transition.” Source: RevenueBase Database · checked Aug 31, 2026
14	Ecozen	Partial evidence	Pune, IndiaHQ checked Aug 31, 2026	201-500	429 contacts →
	Partial evidence “Ecozen develops climate-smart deeptech solutions and core technology stacks to deliver a sustainable future, including motor controls, IoT, and energy storage.” Source: RevenueBase Database · checked Aug 31, 2026
15	Greenflex	Indirect evidence	Paris, FR	501-1,000	400 contacts →
	Indirect evidence “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Source: RevenueBase Database · checked Aug 31, 2026
16	Isotrol	Partial evidence	Sevilla, ES	201-500	396 contacts →
	Partial evidence “Isotrol is the world market leader in energy software solutions and renewable energy plant control solutions used by large energy companies for 4 decades now.” Source: RevenueBase Database · checked Aug 31, 2026
17	Climatepartner	Strong evidence	Zurich, CH	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
18	Kisters Group	Indirect evidence	Aachen, DE	501-1,000	363 contacts →
	Indirect evidence “KISTERS specialises in the collection, processing and reporting of environmental data from around the world, creating innovative and data-driven solutions that harness the power…” Source: RevenueBase Database · checked Aug 31, 2026
19	3degrees Group, INC	Partial evidence	San Francisco, CA, US	201-500	325 contacts →
	Partial evidence “3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation.” Source: RevenueBase Database · checked Aug 31, 2026
20	Position Green	Partial evidence	BE	201-500	323 contacts →
	Partial evidence “Position Green is a sustainability data reporting and management platform that combines software capabilities with expert advisory services to revolutionize the way businesses…” Source: RevenueBase Database · checked Aug 31, 2026
21	Cimarron	Indirect evidence	Marlow, OK, US	501-1,000	316 contacts →
	Indirect evidence “With decades of operating history and innovation across our trusted brands, Cimarron provides technology-driven emissions management solutions for the global energy system.” Source: RevenueBase Database · checked Aug 31, 2026
22	Greenly	Partial evidence	Paris, FR	51-200	308 contacts →
	Partial evidence “Greenly is on a mission to democratize access to science-backed climate intelligence, transforming sustainability from a compliance burden into a strategic competitive advantage.” Source: RevenueBase Database · checked Aug 31, 2026
23	Correla	Indirect evidence	Solihull, GB	201-500	291 contacts →
	Indirect evidence “Correla exists because we dream of a simpler, greener society powered by our investment in innovation and our passion for customers.” Source: RevenueBase Database · checked Aug 31, 2026
24	Energy Pool	Indirect evidence	Le Bourget Du Lac, FR	51-200	290 contacts →
	Indirect evidence “At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…” Source: RevenueBase Database · checked Aug 31, 2026
25	Automa	Indirect evidence	Madrid, ES	201-500	288 contacts →
	Indirect evidence “A Automa, a DNV company, é referência em tecnologias para o setor de energia, com foco em controle, inteligência operacional e eficiência.” 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 2,996 climate tech software companies worldwide

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Climate tech software companies worldwide at a glance

As of Aug 31, 2026

39.3%Verified-email coverage

12.9%Mobile-number coverage

18.0Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · London

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,760

11-50

963

51-200

202

201-500

501-1,000

1,001-5,000

10001+

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.
Coverage: 24 countries, largest first: the United States, the United Kingdom, India, Germany, France, Canada, Brazil, Australia, Spain, the Netherlands and 14 more. Country and city lists for climate tech software companies are linked below.
What qualifies: Companies worldwide 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.
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, 21,139 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 between August 31, 2026 and September 14, 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 tech software companies by location

34 lists · largest first

Every Climate tech software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 2,996 climate tech software companies worldwide 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?

Carrier, headquartered in Palm Beach Gardens, tops this list with the largest team on record.

Which country has the most climate tech software companies?

The United States leads with 548 companies, followed by the United Kingdom (382) and India (281). Every climate tech software companies list by country and city is linked on this page.

Which city has the most climate tech software companies?

London leads with 191 headquartered companies, followed by Paris (67) and Berlin (56).

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 21,139 verified decision-maker contacts tracked across these 2,996 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between August 31, 2026 and September 14, 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.