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The 50 largest energy companies in Sweden

Tamtam tracks 66 energy companies headquartered in Sweden. This list ranks the 50 largest by number of employees on LinkedIn, led by Vattenfall, Stena AB and SCA - Hygiene and Forest Products Company. Their median headcount is 672. Half of them were founded in 1959 or later. The most common headquarters are Stockholm (18), Gothenburg (4) and Malmö (3).

🇸🇪 Sweden50 companiesUpdated Nov 12, 2026

These Swedish companies are primarily large and mid-sized firms operating in the energy sector, encompassing utilities, renewable energy, and industrial machinery manufacturing. Key players include Vattenfall, a European energy company striving for fossil freedom, and Stena AB, a family-owned conglomerate with interests in shipping and offshore drilling. NIBE Group offers sustainable energy solutions, while Northvolt focuses on sustainable battery manufacturing.

A notable pattern is the strong presence of companies involved in forest products and bioenergy, such as SCA, a major private forest owner, and Södra, a forestry-based economic association. This highlights Sweden's focus on leveraging its natural resources for energy and industrial purposes.

#CompanyIndustryHeadquarters EmployeesFounded
1
Vattenfallvattenfall.com

This European energy company supplies electricity to industries and homes while striving for fossil freedom through innovation and cooperation

Utilities 🇸🇪 Solna 15,849 1909
2
Stena ABstena.com

One of the largest family-owned companies in Sweden, operating in Ferry, Offshore Drilling, Shipping, Property, Finance, and New Business sectors worldwide

Maritime 🇸🇪 Gothenburg 6,453 1939
3
SCA - Hygiene and Forest Products Companysca.com

A company split into Essity, focusing on health and hygiene solutions, and SCA, a leading industrial ecosystem with forest products Visit their career pages for more information

Manufacturing 🇸🇪 Stockholm 3,407 n/a
4
NIBE Groupnibegroup.com

A company offering world-class sustainable energy solutions through business operations, product development, and corporate acquisitions over the last 25 years

Industrial Machinery Manufacturing 🇸🇪 Markaryd 2,850 1952
5
Lantmännenlantmannen.com

Leading agricultural cooperative in Northern Europe, specializing in agriculture, machinery, bioenergy, and food products Owned by Swedish farmers, operating worldwide

Food and Beverage Manufacturing 🇸🇪 Stockholm 2,751 n/a
6
SCAsca.com

Largest private forest owner in Europe producing wood products, pulp, packaging paper, renewable energy, and offering forest owner services and transport solutions.

Paper and Forest Product Manufacturing 🇸🇪 Sundsvall 2,696 1929
7
Södrasodra.com

A forestry-based economic association in southern Sweden, providing raw materials for various operations, employing 3,100 people, and producing sawn timber, paper pulp, biofuel, and electricity

Paper and Forest Product Manufacturing 🇸🇪 Växjö 2,349 1938
8
Holmenholmen.com

A sustainable business centered around the forest ecocycle, producing renewable products like wood, paperboard, and paper, with a workforce of 3,500 people

Paper and Forest Product Manufacturing 🇸🇪 Stockholm 2,023 n/a
9
Svenska kraftnätsvk.se

The company is responsible for managing Sweden's power system, ensuring safe and sustainable electricity supply while prioritizing privacy and public transparency

Utilities 🇸🇪 Sundbyberg 1,935 1992
10
OKQ8okq8.se

A leading Scandinavian fuel company with a focus on sustainability, reducing inequality, and providing products and services for people on the move

Retail 🇸🇪 Stockholm 1,710 1926
11
Northvoltnorthvolt.com

A company dedicated to enabling a decarbonized future through sustainable battery manufacturing, driven by a commitment to fossil-free energy, ethical sourcing, and recycling

Industrial Machinery Manufacturing 🇸🇪 Stockholm 1,624 n/a
12
Vattenfall Eldistribution ABvattenfalleldistribution.se

Vattenfall Eldistribution distributes electricity efficiently to over 900,000 customers, ensuring reliable network capacity and delivery quality through multiple offices in Sweden

Utilities 🇸🇪 Solna 1,268 1909
13
Preem ABvaropreem.com

A leading energy company in Sweden, focused on sustainability and innovation in the changing energy landscape, aiming for a greener future

Renewable Energy Power Generation 🇸🇪 Stockholm 1,232 1994
14
Relacomoneco.se

Relacom, now operating as Oneco, is a leading network services provider for international operators and local partners, specializing in network construction, installation, and maintenance

Telecommunications 🇸🇪 Stockholm 1,189 n/a
15
Göteborg Energigoteborgenergi.se

Production and delivery of sustainable energy, development of smarter systems, and energy-efficient solutions for Gothenburg's urban future.

Utilities 🇸🇪 Gothenburg 1,142 n/a
16
E.ON Sverigeeon.se

The company is dedicated to providing Sweden with renewable energy to improve lives, focusing on smart energy usage and sustainability goals for a better future

Utilities 🇸🇪 Malmö 1,055 1906
17
NIBEnibe.eu

Development and manufacturing of energy-efficient indoor comfort solutions, heating components, and control systems for properties, industry, and infrastructure.

Renewable Energy Equipment Manufacturing 🇸🇪 Markaryd 990 n/a
18
ONE Nordic ABone-nordic.se

ONE Nordic is a leading provider of technical services, construction, and maintenance in the energy sector, specializing in developing sustainable energy systems in Sweden

Utilities 🇸🇪 Malmö 909 2011
19
Ludvika kommunludvika.se

A growing municipality in southern Dalarna, focused on promoting growth and opportunities for its 27,000 residents through targeted efforts in youth, employment, and environmental quality

Government Administration 🇸🇪 Ludvika 849 n/a
20
Ellevioellevio.se

With nearly a million customers, this company is one of Sweden's largest electricity network companies, playing a key role in transitioning towards a more electrified society

Utilities 🇸🇪 Stockholm 831 2015
21
Stockholm Exergistockholmexergi.se

Stockholm's energy company provides heating, cooling, electricity, and waste processing services to over 800,000 people and numerous businesses in the region

Utilities 🇸🇪 Stockholm 825 n/a
22
Stegrastegra.com

Building a plant in Sweden, producing green hydrogen and green steel, to decarbonize hard-to-abate industry using renewable electricity.

Primary Metal Manufacturing 🇸🇪 Stockholm 825 2020
23
Tekniska verken i Linköping ABtekniskaverken.se

A regional company providing electricity, water, heating, cooling, waste management, broadband, and biogas services to around 280,000 private and corporate clients

Services for Renewable Energy 🇸🇪 Linköping 775 1902
24
Nynas ABnynas.com

Specializing in bitumen and naphthenic specialty products, the company offers solutions for sustainable infrastructure and electrification, creating value for customers worldwide

Chemical Manufacturing 🇸🇪 Stockholm 713 1928
25
Airaairahome.com

Aira is revolutionizing home energy with clean technology, using heat pumps to reduce carbon emissions and energy bills in Europe

Services for Renewable Energy 🇸🇪 Stockholm 672 2022

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26
Telgetelge.se

The company in Södertälje drives societal development through smart and sustainable business practices, prioritizing employee growth, development, and work-life balance with various benefits

Government Administration 🇸🇪 Södertälje 669 n/a
27
Transtematranstema.com

Transtema is a leading Nordic company specializing in designing, building, operating, and maintaining communication networks They also offer technical consulting and equipment

Telecommunications 🇸🇪 Mölndal 666 1997
28
OKGokg.se

The company operates three nuclear reactors in Sweden, generating 10% of the country's electricity It has 850 employees and an annual turnover of SEK 3 billion

Nuclear Electric Power Generation 🇸🇪 Oskarshamn 651 1965
29
Cavoteccavotec.com

A cleantech leader specializing in automation and electrification solutions for decarbonizing ports and industrial operations globally

Mechanical Or Industrial Engineering 🇸🇪 Stockholm 641 1974
30
Eksjö kommuneksjo.se

The company provides essential services and support for a good quality of life, focusing on value for everyone they serve Opportunities for development and challenges are available

Government Administration 🇸🇪 Eksjö 640 n/a
31
Skellefteå Kraftskekraft.se

The company is a historical power company founded in 1906, known for having the lowest electricity prices and being a major investor in the region

Renewable Energy Power Generation 🇸🇪 Skellefteå 622 1906
32
Mälarenergi ABmalarenergi.se

Providing essential energy, water, and broadband solutions to support a thriving society and sustainable community in collaboration with stakeholders

Utilities 🇸🇪 Västerås 610 1861
33
Svea Solarsveasolar.com

Providing digital solutions to enable ownership and transition from dirty energy to renewable power for a sustainable planet.

Solar Electric Power Generation 🇸🇪 Bromma 571 2014
34
OX2ox2.com

Develops, constructs, manages, and owns large-scale renewable energy solutions including wind, solar, and energy storage, powering sustainable electrification globally.

Renewable Energy Power Generation 🇸🇪 Stockholm 548 2004
35
Renova ABrenova.se

A leading environmental company in western Sweden providing waste management solutions to reduce environmental impact, with 780 employees and owned by municipalities

Environmental Services 🇸🇪 Gothenburg 528 1998
36
Öresundskraft ABoresundskraft.se

Provides electricity, district heating, natural gas, cooling, broadband, and services to 260,000 customers focusing on sustainability.

Utilities 🇸🇪 Helsingborg 435 1859
37
Umeå Energi ABumeaenergi.se

An energy company and community partner providing sustainable energy and communication solutions, promoting innovation and driving sustainable development in Umeå region

Government Administration 🇸🇪 Umeå 424 1892
38
E.ON ENERGIDISTRIBUTION ABeon.se

The company specializes in building and maintaining the electricity grid to ensure reliable energy supply for customers, including investments in new infrastructure

Utilities 🇸🇪 Malmö 400 1906
39
Kraftringenkraftringen.se

An energy company focused on leading the development of future energy solutions, prioritizing local energy solutions for environmental benefits and sustainable growth in the region

Renewable Energy Power Generation 🇸🇪 Lund 371 1907
40
Micropower Groupmicropower-group.com

A Swedish company specializing in developing and manufacturing unique battery and charger systems, Lithium-Ion batteries, power supplies, and smart software solutions

Appliances, Electrical, and Electronics Manufacturing 🇸🇪 Växjö 364 1984
41
Eskilstuna Strängnäs Energi och Miljö ABesem.se

ESEM operates and develops the activities and facilities of EEM and SEVAB with around 550 employees working on their behalf

Utilities 🇸🇪 Eskilstuna 350 2014
42
GAROgaro.se

Development and marketing of electrical installation products focusing on safety, user-friendliness, sustainability, including e-mobility and temporary power solutions.

Appliances, Electrical, and Electronics Manufacturing 🇸🇪 Gnosjö 325 1939
43
Aimoaimo.se

A leading parking company in Sweden, providing innovative and sustainable mobility solutions to enhance customer experience and promote smarter, more sustainable cities

Consumer Services 🇸🇪 Stockholm 318 1959
44
Northern Offshore Servicesn-o-s.eu

Provider of high-speed vessels for staff and light equipment transportation, offering vessel management solutions to the marine sector, with a fleet of specialized catamarans

Maritime Transportation 🇸🇪 Gothenburg 309 2008
45
Veolia Nordenveolia.se

A Nordic company providing water, waste, and energy solutions to industrial, public, and commercial clients, focused on resource optimization and sustainability

Environmental Services 🇸🇪 Stockholm 285 n/a
46
Jönköping Energijonkopingenergi.se

A municipality-owned company in Jönköping provides competitive, green energy, and communication solutions through an efficient infrastructure, prioritizing sustainability and customer relationships

Services for Renewable Energy 🇸🇪 Jönköping 278 1907
47
Alfa Laval Cryogenicsalfalaval.com

Specializing in cryogenics, Fives Energy focuses on designing and maintaining heat exchangers, pumps, and related solutions for the gas industry globally

Industrial Machinery Manufacturing 🇸🇪 Lund 207 1959
48
Omexom Sverigeomexom.se

Enables energy transition through sustainable electrical power, rail, and electrification solutions, ensuring safe, sustainable, and efficient electricity supply globally.

Electric Power Transmission, Control, and Distribution 🇸🇪 Stockholm 193 2000
49
Nuvia Nordic ABnuvia.com

Specializing in nuclear service and production development, this company focuses on complex environments like the nuclear industry, providing innovative and cost-effective solutions to clients

Construction 🇸🇪 Norrköping 129 2011
50
Echandiaechandia.com

This company provides safe and durable electrification solutions for the marine industry, specializing in electric propulsion and onboard support systems

Energy Technology 🇸🇪 Stockholm 96 2018

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.

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