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Top 50 Energy Companies in Sweden (2026)

Sweden's energy sector is transitioning rapidly toward renewables, with companies leading in wind, solar, and grid modernization. These are the 50 largest Swedish energy companies by employee count.

1

🇸🇪 Hitachi Energy Sweden AB

5,000–9,999 employees10B+ SEK

Global leader powering sustainable energy future with grid technologies.

2

🇸🇪 AFRY Sweden AB

3,000–3,999 employees5–10B SEK

AFRY unlocks sustainable transitions through global engineering and advisory services.

3

🇸🇪 Siemens Energy AB

3,000–3,999 employees10B+ SEK

Global leader transforming energy systems for sustainability and reliability.

4

🇸🇪 NKT HV Cables AB

2,000–2,999 employees10B+ SEK

Global provider of high-voltage power cable solutions for green energy.

5

🇸🇪 OK DETALJHANDEL AB

2,000–2,999 employees5–10B SEK

Leading Swedish provider of fuel, mobility services, and energy solutions.

6

🇸🇪 Vattenfall AB

2,000–2,999 employees10B+ SEK

European energy company driving society towards fossil freedom through innovation.

7

🇸🇪 Rejlers Sverige AB

1,500–1,999 employees1–5B SEK

Leading Nordic technical consultancy driving sustainable societal transformation through engineering expertise.

8

🇸🇪 SVENSKA KRAFTNÄT

1,500–1,999 employees10B+ SEK

State-owned operator managing Sweden's high-voltage electricity transmission grid.

9

🇸🇪 Valmet Aktiebolag

1,500–1,999 employees5–10B SEK

Global technology leader providing industrial solutions, automation, and services.

10

🇸🇪 VAROPreem Sverige AB

1,500–1,999 employees10B+ SEK

Leading Swedish energy company transitioning to climate neutrality by 2035.

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11

🇸🇪 VATTENFALL ELDISTRIBUTION AB

1,500–1,999 employees10B+ SEK

Enabling a fossil-free future through renewable energy solutions.

12

🇸🇪 Vattenfall Services Nordic AB

1,500–1,999 employees5–10B SEK

They develop, build, maintain, and optimize energy infrastructure solutions.

13

🇸🇪 E.ON Energidistribution Aktiebolag

1,000–1,499 employees10B+ SEK

Manages and maintains the essential electricity distribution grid infrastructure.

14

🇸🇪 Eltel Networks Infranet AB

1,000–1,499 employees1–5B SEK

Specialists building and maintaining critical digital and power infrastructure networks.

15

🇸🇪 FORSMARKS KRAFTGRUPP AKTIEBOLAG

1,000–1,499 employees5–10B SEK

Operates Sweden's largest nuclear power plant producing reliable, fossil-free electricity.

16

🇸🇪 Göteborg Energi Aktiebolag

1,000–1,499 employees1–5B SEK

Gothenburg's municipal energy company electrifying Western Sweden sustainably.

17

🇸🇪 Northvolt AB

1,000–1,499 employees1–5B SEK

Manufacturing the world's greenest batteries to enable clean energy transition.

18

🇸🇪 Northvolt Ett AB

1,000–1,499 employees1–5B SEK

Manufacturing the world's greenest batteries using clean energy and recycling.

19

🇸🇪 RINGHALS AB

1,000–1,499 employees5–10B SEK

European energy company driving society towards fossil freedom through innovation.

20

🇸🇪 Bilfinger Sweden AB

500–999 employees1–5B SEK

International industrial services provider enhancing process industry efficiency and sustainability.

21

🇸🇪 Bosch Thermoteknik AB

500–999 employees1–5B SEK

Swedish manufacturer providing high-quality, energy-saving heat pumps for all properties.

22

🇸🇪 Elajo El & Energiteknik AB

500–999 employees500–1000M SEK

Technical solutions provider for energy, security, automation, and maintenance.

23

🇸🇪 Ellevio Sverige AB

500–999 employees500–1000M SEK

Ellevio operates and develops Sweden's electricity distribution network.

24

🇸🇪 Eskilstuna Strängnäs Energi och Miljö Aktiebolag

500–999 employees1–5B SEK

Operates essential energy, water, and environmental services for two municipalities.

25

🇸🇪 Fortum Sverige AB

500–999 employees10B+ SEK

Fortum provides Nordic electricity contracts, generation, and smart energy solutions.

26

🇸🇪 HOLMEN SKOG AKTIEBOLAG

500–999 employees100–500M SEK

Sustainable forestry services and timber procurement for renewable products.

27

🇸🇪 Linde Gas AB

500–999 employees1–5B SEK

Linde is the leading supplier of industrial gases and technology solutions.

28

🇸🇪 Newsec Property Asset Management Sweden AB

500–999 employees500–1000M SEK

Transforming real estate and energy assets across Northern Europe for owners.

29

🇸🇪 Northvolt Labs AB

500–999 employees100–500M SEK

Manufacturing the world's greenest batteries using clean energy and recycling.

30

🇸🇪 OKG Aktiebolag

500–999 employees1–5B SEK

Operates a major nuclear reactor and manages decommissioning projects.

31

🇸🇪 Schneider Electric Sverige AB

500–999 employees1–5B SEK

Global leader driving energy efficiency through electrification and automation.

32

🇸🇪 Sesol AB

500–999 employees500–1000M SEK

Leading provider of integrated residential solar and energy systems.

33

🇸🇪 SKELLEFTEÅ KRAFTAKTIEBOLAG

500–999 employees5–10B SEK

Provides renewable energy solutions including electricity, heating, and fiber.

34

🇸🇪 STATENS ENERGIMYNDIGHET

500–999 employees1–49K SEK

Government agency driving Sweden's transition to sustainable energy.

35

🇸🇪 Stockholm Exergi AB

500–999 employees10B+ SEK

Stockholm's energy company providing sustainable heat, cooling, and electricity.

36

🇸🇪 Svensk Kärnbränslehantering Aktiebolag

500–999 employees1–5B SEK

Managing Sweden's nuclear waste safely through advanced technology and infrastructure.

37

🇸🇪 Tekniska verken i Linköping AB (publ)

500–999 employees1–5B SEK

Linköping's energy company building a resource-efficient region.

38

🇸🇪 Transtema Network Services AB

500–999 employees1–5B SEK

Nordic leader installing, maintaining, and operating critical network infrastructure.

39

🇸🇪 Vattenfall Vattenkraft AB

500–999 employees1–5B SEK

European energy company driving the transition to fossil freedom.

40

🇸🇪 Vestas Northern Europe AB

500–999 employees1–5B SEK

Global leader designing, manufacturing, installing, and servicing wind energy solutions.

41

🇸🇪 WALLENIUS MARINE AB

500–999 employees500–1000M SEK

Leading sustainable ship design, newbuilding, and comprehensive fleet management services.

42

🇸🇪 WESTINGHOUSE ELECTRIC SWEDEN AB

500–999 employees1–5B SEK

Leading global provider of advanced nuclear energy technology and services.

43

🇸🇪 Rexel Sverige AB

698 employees6.6B SEK

Leading Swedish distributor of electrical products and energy solutions.

44

🇸🇪 Adven Sverige AB

200–499 employees1–5B SEK

Leading partner driving energy transition via industrial and real estate solutions.

45

🇸🇪 AIR LIQUIDE GAS AKTIEBOLAG

200–499 employees1–5B SEK

World leader supplying industrial gases, technology, and healthcare services.

46

🇸🇪 AKTIEBOLAGET BORLÄNGE ENERGI

200–499 employees1–5B SEK

Borlänge Energi provides essential municipal energy and environmental services locally.

47

🇸🇪 ANDRITZ AKTIEBOLAG

200–499 employees1–5B SEK

Leading supplier of industrial process technologies driving green transition.

48

🇸🇪 Anläggning & Kabel Entreprenad i Malmö AB

200–499 employees1–5B SEK

Building modern, sustainable infrastructure for energy, transport, and information transfer.

49

🇸🇪 Borås Energi och Miljö AB

200–499 employees1–5B SEK

Provides essential municipal services including energy, waste, and water.

50

🇸🇪 Coromatic AB

200–499 employees1–5B SEK

Nordic specialist securing mission-critical power and data infrastructure 24/7.

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