Company lists · Data refreshed September 2026

Top 25 Cleantech startups based in Sweden

Name: Cleantech startups based in Sweden
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 99 companies tracked

RevenueBase identified 99 cleantech startups headquartered in Sweden as of September 2026 and tracks 930 professional contacts across them, including 417 with verified work emails. Stockholm is the largest hub.

This list covers cleantech startups headquartered in Sweden, 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 19, 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 19, 2026 86% judged on-target in blind review

99Companies

930Contacts tracked

417Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cleantech startups based in Sweden

Ranked by team size

Top 25 of 99 cleantech startups based in Sweden, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cleantech startups: 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	Alight	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	51-200	114 contacts →
	Indirect evidence “At Alight, we’re on a mission to kick carbon off the grid by helping energy-intensive businesses switch to solar.” Source: RevenueBase Database · checked Sep 19, 2026
2	1komma5 Sverige	Indirect evidence	Hyllievång, SwedenHQ checked Sep 19, 2026	51-200	92 contacts →
	Indirect evidence “We’re passionate about solving the climate crisis by helping Swedes to make a cost efficient transition towards renewable energy, where we focus on helping our customers through…” Source: RevenueBase Database · checked Sep 19, 2026
3	Nibe Group	Indirect evidence	Markaryd, SwedenHQ checked Sep 19, 2026	n/a	62 contacts →
	Indirect evidence “Word-class solutions in sustainable energy Our passion for doing business, product development and corporate acquisitions have led to a signifcant expansion for the last 25 years.” Source: RevenueBase Database · checked Sep 19, 2026
4	KP Energy	Partial evidence	Västerås, SwedenHQ checked Sep 19, 2026	11-50	52 contacts →
	Partial evidence “KP Energy is one of Sweden’s leading wholesalers in CleanTech and a part of OK-Q8 AB.” Source: RevenueBase Database · checked Sep 19, 2026
5	Checkwatt	Indirect evidence	Danderyd, SwedenHQ checked Sep 19, 2026	51-200	49 contacts →
	Indirect evidence “Vision Making the 100% renewable energy system possible by applying intelligence to data and control to sources and loads.” Source: RevenueBase Database · checked Sep 19, 2026
6	Rabbalshede Kraft AB	Indirect evidence	Rabbalshede, SwedenHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “At Rabbalshede Kraft, we help shape the energy of tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026
7	FERLA	Indirect evidence	Nacka, SwedenHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Vision We want to be the pioneer in the transformation towards 100% sustainable energy solutions for the property sector.” Source: RevenueBase Database · checked Sep 19, 2026
8	Saltx Technology	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “SaltX is a Swedish Greentech company that develops and markets sustainable technology that will benefit customers, the climate, and society.” Source: RevenueBase Database · checked Sep 19, 2026
9	Mimbly	Partial evidence	Gothenburg, SwedenHQ checked Sep 19, 2026	11-50	24 contacts →
	Partial evidence “We are a Sweden-based cleantech company with a mission to provide the best and most sustainable water and microplastic solutions to the world, helping businesses stay ahead of…” Source: RevenueBase Database · checked Sep 19, 2026
10	KANEL	Partial evidence	Södermalm, SwedenHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “KanEL is a leading energy tech startup redefining the energy industry with its innovative platform.” Source: RevenueBase Database · checked Sep 19, 2026
11	TRINE	Indirect evidence	Gothenburg, SwedenHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “At Trine we’re on a mission to make the world better, faster.” Source: RevenueBase Database · checked Sep 19, 2026
12	DRIVA	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “På Driva erbjuder vi allt från säker gasdistribution och robust energiinfrastruktur till skräddarsydda energisystem för framtidens behov.” Source: RevenueBase Database · checked Sep 19, 2026
13	Solaradvantage	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “SolarAdvantage är nordens snabbast växande företag inom den förnybara energisektorn.” Source: RevenueBase Database · checked Sep 19, 2026
14	Arka Energy AB	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Arka Energy tillhandahåller grön energiteknik till bostäder, kommersiell och statlig verksamhet.” Source: RevenueBase Database · checked Sep 19, 2026
15	Green Hero AB	Indirect evidence	Malmö, SwedenHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Green Hero is a company trying to reduce future emissions by as much as we possibly can.” Source: RevenueBase Database · checked Sep 19, 2026
16	Pale Blue DOT	Indirect evidence	Malmo, SwedenHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Pale blue dot is a seed-stage climate tech VC that backs visionary founders, building future-shaping businesses.” Source: RevenueBase Database · checked Sep 19, 2026
17	Inovèla AB	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “För hållbar framtid arbetar vi tillsammans för att respektera de begränsade naturtillgångar vi har.” Source: RevenueBase Database · checked Sep 19, 2026
18	Scea AB	Indirect evidence	Gothenburg, SwedenHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “SCEA AB hette tidigare Consat Sustainable Energy Systems (SES) och bildades 2009 och har kontor i Göteborg och Stockholm.” Source: RevenueBase Database · checked Sep 19, 2026
19	Energija Konsulterande Ingenjörsbyrå AB	Indirect evidence	Jonsered, SwedenHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Consulting services promoting new technologies and innovation within the fields of energy, HVAC, environment and sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
20	Nordnest	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Nordnest provides seamlessly integrated sustainable solutions in: Properties, Data Centres, and Energy Systems.” Source: RevenueBase Database · checked Sep 19, 2026
21	Brainy Energy Group Nordic AB	Indirect evidence	Stockholm \| Göteborg \| Norrköping \| Växjö \| Kalmar, SwedenHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Experter inom energi Vi är experter inom energiprojekt och vet att varje byggnad och verksamhet har sina egna förutsättningar.” Source: RevenueBase Database · checked Sep 19, 2026
22	EOLUS	Indirect evidence	Hassleholm, SwedenHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Eolus is a leading developer of innovative and customized renewable energy solutions.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ekzel AB	Indirect evidence	Stockholm, SwedenHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Vi hjälper företag i energibranschen att utveckla, förbättra och genomföra allt från hållbarhetsarbete och affärsutveckling.” Source: RevenueBase Database · checked Sep 19, 2026
24	Save-By-Solar Sweden AB	Indirect evidence	Uppsala, SwedenHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Vi på Save by Solar vill driva på övergången till en förnybar värld genom att förändra företags sätt att använda energi.” Source: RevenueBase Database · checked Sep 19, 2026
25	Greentech People AB	Indirect evidence	Malmo, SwedenHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Greentech People är ett modernt företag som hjälper till och bidrar till att hitta rätt sätt att påskynda och underlätta övergången till förnybar energi för dig, din verksamhet…” Source: RevenueBase Database · checked Sep 19, 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: cleantech startups. 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 cleantech startups.
Partial evidence: Its own public description names part of cleantech startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cleantech startups. 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 99 cleantech startups based in Sweden

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 417 reachable decision-makers.

Free signup · no credit card

View the full list →

Cleantech startups based in Sweden at a glance

As of Sep 19, 2026

44.8%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

31.3%Largest-city concentration · Stockholm

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

10001+

Email recency for this list is measured worldwide rather than for Sweden, so it is reported there. Company counts and contact totals on this page are exact for Sweden, over 99 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 cleantech startups, 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 Sweden whose own description of what they do matches “cleantech startups”. 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 cleantech startups), 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 cleantech startups, and records with no verified work email. Companies headquartered outside Sweden 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, 417 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 19, 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.

Cleantech startups by metro

Cleantech startups in Stockholm31

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 cleantech startups, 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 cleantech startups are there based in Sweden?

RevenueBase identified 99 cleantech startups headquartered in Sweden 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?

Alight, headquartered in Stockholm, tops this list with the largest team on record.

Which city has the most cleantech startups?

Stockholm leads with 31 headquartered companies, followed by Gothenburg (9) and Malmo (7).

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 417 verified decision-maker contacts tracked across these 99 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 99 cleantech startups based in Sweden. Start with a free account, no credit card.

Download this list →

Related lists

Cleantech startups by geography

Browse the directory

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.