Company lists · Data refreshed September 2026

Top 25 Clean tech companies based in Sweden

Name: Clean tech companies based in Sweden
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 124 companies tracked

RevenueBase identified 124 company matches for clean tech companies associated with Sweden as of September 2026 and tracks 1,117 professional contacts across them, including 513 with verified work emails. Stockholm is the largest hub.

This list covers company matches for clean tech companies associated with Sweden, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

124Companies

1,117Contacts tracked

513Verified emails

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The 25 largest clean tech companies based in Sweden

Ranked by team size

Top 25 of 124 company matches for clean tech companies based in Sweden, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alight	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	51-200	114 contacts →
	Exact match “At Alight, we’re on a mission to kick carbon off the grid by helping energy-intensive businesses switch to solar.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Alfdex AB	Exact match	Landskrona, SwedenHQ recorded Sep 19, 2026	201-500	99 contacts →
	Exact match “Alfdex is pushing technical boundaries by developing new, ground-breaking solutions that target today’s demanding customer needs and contribute to a sustainable future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	KTC	Exact match	Askim, SwedenHQ recorded Sep 19, 2026	51-200	70 contacts →
	Exact match “Med över 30 år i branschen är KTC idag en av världens ledande aktörer inom intelligent energioptimering.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Nibe Group	Exact match	Markaryd, SwedenHQ recorded Sep 19, 2026	n/a	62 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Checkwatt	Exact match	Danderyd, SwedenHQ recorded Sep 19, 2026	51-200	49 contacts →
	Exact match “Vision Making the 100% renewable energy system possible by applying intelligence to data and control to sources and loads.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Rabbalshede Kraft AB	Exact match	Rabbalshede, SwedenHQ recorded Sep 19, 2026	11-50	45 contacts →
	Exact match “At Rabbalshede Kraft, we help shape the energy of tomorrow.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	FERLA	Exact match	Nacka, SwedenHQ recorded Sep 19, 2026	11-50	35 contacts →
	Exact match “Vision We want to be the pioneer in the transformation towards 100% sustainable energy solutions for the property sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Helicon Technologies	Exact match	Kungsholmen, SwedenHQ recorded Sep 19, 2026	11-50	34 contacts →
	Exact match “Helicon designs, builds, and integrates software and data systems that work in complex, real-world environments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Saltx Technology	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	29 contacts →
	Exact match “SaltX is a Swedish Greentech company that develops and markets sustainable technology that will benefit customers, the climate, and society.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Fever Energy	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Fever makes distributed energy work.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Creanova AB	Exact match	Sollentuna, SwedenHQ recorded Sep 19, 2026	11-50	25 contacts →
	Exact match “Vi är ett energikonsultföretag med huvudkontor i Sollentuna strax norr om Stockholm samt med filialkontor i Umeå.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Sustainable Business Partner	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	18 contacts →
	Exact match “Helhetsleverantör inom greentech Fastighetsägare, företag eller kommun.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	t.loop	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	16 contacts →
	Exact match “Data centers will use 3,4% of the world's power consumption in 2030.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Umia SYD AB	Exact match	Malmö, SwedenHQ recorded Sep 19, 2026	51-200	16 contacts →
	Exact match “Umiamodellen – en kontaktperson för allt El- och rörteknik, hör det ihop?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Assemblin Solar	Exact match	Gothenburg, SwedenHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “På Assemblin Solar installerar vi inte bara solpaneler.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	DRIVA	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	13 contacts →
	Exact match “På Driva erbjuder vi allt från säker gasdistribution och robust energiinfrastruktur till skräddarsydda energisystem för framtidens behov.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Solaradvantage	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	13 contacts →
	Exact match “SolarAdvantage är nordens snabbast växande företag inom den förnybara energisektorn.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Arka Energy AB	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	13 contacts →
	Exact match “Arka Energy tillhandahåller grön energiteknik till bostäder, kommersiell och statlig verksamhet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Green Hero AB	Exact match	Malmö, SwedenHQ recorded Sep 19, 2026	1-10	11 contacts →
	Exact match “Green Hero is a company trying to reduce future emissions by as much as we possibly can.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Inovèla AB	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “För hållbar framtid arbetar vi tillsammans för att respektera de begränsade naturtillgångar vi har.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Scea AB	Exact match	Gothenburg, SwedenHQ recorded Sep 19, 2026	1-10	10 contacts →
	Exact match “SCEA AB hette tidigare Consat Sustainable Energy Systems (SES) och bildades 2009 och har kontor i Göteborg och Stockholm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Energija Konsulterande Ingenjörsbyrå AB	Exact match	Jonsered, SwedenHQ recorded Sep 19, 2026	1-10	9 contacts →
	Exact match “Consulting services promoting new technologies and innovation within the fields of energy, HVAC, environment and sustainability.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Brainy Energy Group Nordic AB	Exact match	Stockholm \| Göteborg \| Norrköping \| Växjö \| Kalmar, SwedenHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Experter inom energi Vi är experter inom energiprojekt och vet att varje byggnad och verksamhet har sina egna förutsättningar.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Nordnest	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Nordnest provides seamlessly integrated sustainable solutions in: Properties, Data Centres, and Energy Systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	EOLUS	Exact match	Hassleholm, SwedenHQ recorded Sep 19, 2026	51-200	9 contacts →
	Exact match “Eolus is a leading developer of innovative and customized renewable energy solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “clean tech companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 124 clean tech companies based in Sweden

See the full list, filter by size, metro and specialty, and access 513 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clean tech companies based in Sweden at a glance

As of Sep 19, 2026

45.9%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

30.6%Largest-city concentration · Stockholm

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 124 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Sweden whose business descriptions match “clean tech companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 513 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean tech companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean tech companies are there based in Sweden?

RevenueBase identified 124 company matches for clean tech companies associated with Sweden as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alight tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most clean tech companies?

Stockholm leads with 38 company records, followed by Gothenburg (13) and Malmo (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 513 professional contacts with verified work emails tracked across these 124 companies; direct dials are available where recorded.

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.

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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 SmartSearch, 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.