List of Energy Companies in Finland

Last updated 7 November 2026

There are 3,027 energy companies in Finland, one in every 446 Finnish companies. Most of them are small: nine in ten have one to four people, and only 56 firms employ 50 people or more. Two in five of all energy firms are based in Helsinki, Esbo, Tammerfors, Oulu and Jyväskylä. Below you find the largest energy firms in Finland, the cities where they cluster, how many started this year and which are the oldest. The full list with addresses, phone numbers and email is in our Finnish company database or through the Company Data API.

3,027 companies indexed · Data counted on 7 November 2026

Companies3,0271 in446 Finnish companiesCities282Largest cityHelsinki 727Sole traders3%Employees1-4 (88%)Revenue< $100K (39%)Email31%Phone25%Website44%

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A live view of all 3,027 energy firms, sorted by revenue. Narrow it by region, city, employee size, revenue, legal form or founding year, or search a firm by name.

Fortum Power And Heat OYFortum Power And Heat OY

	Company Name	Country	City	Address 1	State/Province	Postal Code	Website	Founding Year	Yearly Revenue in U.S. Dollars	Employees Total	Business Legal Type - Description	Number of Companies in Group	Company Registration Number
1	Fortum Power And Heat OY	Finland	Esbo	Keilalahdentie 2	Uusimaa	02150	*****.com	1932	$1,881,005,099	1,224	Corporation	4089	01091602
2	Helen OY	Finland	Helsinki	Itämerenkatu 25	Uusimaa	00180	*****.fi	2014	$1,591,482,744	621	Corporation	932	26305734
3	Fingrid OYJ	Finland	Helsinki	Läkkisepäntie 21	Uusimaa	00620	*****.fi	1997	$1,296,456,849	593	Corporation	19	10728943
4	Teollisuuden Voima OYJ	Finland	Euraåminne	Olkiluoto	Satakunta	27160	*****.fi	1969	$1,073,672,447	1,166	Corporation	426	01966560
5	Pohjolan Voima OYJ	Finland	Helsinki	Mikonkatu 7a 5	Uusimaa	00100	*****.fi	1943	$967,004,852	28	Corporation	426	02101614
6	Vattenfall OY	Finland	Helsinki	Konepajankuja 3b	Uusimaa	00510	*****.fi	2003	$741,195,127	97	Corporation	2384	18420732
7	Upm Energy OY	Finland	Helsinki	Alvar Aallon Katu 1	Uusimaa	00100	*****.com	2016	$672,036,914	265	Corporation	426	27606395
8	Fortum Markets OY	Finland	Esbo	Keilalahdentie 2	Uusimaa	02150	*****.com	2003	$528,862,582	163	Corporation	4089	18523280
9	Caruna OY	Finland	Esbo	Upseerinkatu 2	Uusimaa	02600	*****.fi	2000	$499,745,287	162	Corporation	20	16183147
10	Suur-Savon Sähkö OY	Finland	Mikkeli	Prikaatinkatu 3d	Etelä-savo	50100	*****.fi	1946	$466,639,432	32	Corporation	49	02158637
11	Epv Energia OY	Finland	Vasa	Kirkkopuistikko 0	Pohjanmaa	65100	*****.fi	1952	$452,776,261	88	Corporation	28	02167349
12	Oomi Palvelut OY	Finland	Vanda	Teknobulevardi 7	Uusimaa	01530	*****.fi	2001	$417,223,919	1	Corporation	4	17032965
13	OY Turku Energia-Åbo Energi AB	Finland	Turku	Teollisuuskatu 40	Varsinais-suomi	20520	*****.fi	1994	$415,645,914	287	Corporation	323	09849449
14	Elenia Verkko OYJ	Finland	Tammerfors	Patamäenkatu 7	Pirkanmaa	33900	*****.fi	2019	$399,407,690	265	Corporation	19	30018826
15	Oomi OY	Finland	Vanda	Teknobulevardi 7	Uusimaa	01530	*****.fi	2019	$395,473,094	72	Corporation	4	31013154
16	Enersense International OYJ	Finland	Björneborg	Konepajanranta 2	Satakunta	28100	*****.fi	1986	$355,688,859	72	Corporation	37	06097667
17	Aitovoima OY	Finland	Eura	Lauttakyläntie 570	Satakunta	27510	N/A	2021	$327,692,800	1	Corporation	9	32124446
18	Vantaan Energia OY	Finland	Vanda	Peltolantie 27	Uusimaa	01300	*****.fi	1910	$323,672,584	320	Corporation	334	01244613
19	Mind Energy OY	Finland	Vanda	Teknobulevardi 7	Uusimaa	01530	*****.com	2007	$317,383,156	13	Corporation	17	21169673
20	Oulun Energia OY	Finland	Oulu	Solistinkatu 4	Pohjois-pohjanmaa	90140	*****.fi	1994	$312,652,755	182	Corporation	21	09893765
21	Tampereen Energia OY	Finland	Tammerfors	Voimakatu 25	Pirkanmaa	33100	*****.fi	1950	$304,848,346	198	Corporation	506	01537918
22	Lumme Energia OY	Finland	Mikkeli	Prikaatinkatu 3d	Etelä-savo	50100	*****.fi	2006	$302,095,417	49	Corporation	49	20389316
23	Savon Voima OYJ	Finland	Siilinjärvi	Kapteeninväylä 5	Pohjois-savo	70900	*****.fi	1947	$271,223,202	175	Corporation	25	01713512
24	Kilpilahden Voimalaitos OY	Finland	Borgå	Satamatie 133	Uusimaa	06850	*****.fi	2015	$247,547,818	4	Corporation	N/A	27095257
25	Pohjois-Karjalan Sähkö OY	Finland	Joensuu	Rantakatu 29	Pohjois-karjala	80100	*****.fi	1946	$246,661,279	58	Corporation	36	02147321

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How many energy companies are there in Finland?

Energy companies and energy firms in Finland

3,027

7 November 2026

There are 3,027 energy companies and energy firms in Finland in our data (7 November 2026). That is one in every 446 Finnish companies. About 2 new firms are entered in the register every week this year (86 so far in 2026).

Structure

Single-site firms: 2,146 71%
Head offices: 261
Branch offices: 620

Classification

NACE Rev. 2 code 35. Our platform filter is SIC 4911, 4922, 4923, 4924 and 5 more.

2,122 of the 3,027 are Oy and Oyj (70%); 87 are sole traders. They come from YTJ and the PRH Trade Register and our Finnish register data, through the Company Data API.

Where in Finland?

Helsinki has the most energy companies in Finland (727), ahead of Esbo (172), Tammerfors (80), Oulu (71) and Jyväskylä (66). Together the five hold two in five of them.

Cities by number of firms

282 Finnish cities have at least one energy firm; 47 have ten or more; 59 have exactly one. Click a city to set the lens.

Firm sizes in Finland

Of the 3,018 Finnish energy firms with a known headcount, 2,655 (88%) have one to four people, 134 have five to nine, 173 have ten to 49 and 56 have 50 or more. Most firms turn over under $100,000 a year (932, 39%).

EU size bands · the grey line shows all Finnish companies

Micro under 102,789 92%
Small 10 to 49173 6%
Medium 50 to 24954 2%
Large 250+2 <0.1%

Grey line: the share among all Finnish companies (97% have under ten staff).

308

firms turn over more than $5 million a year; 226 more than $10 million.

firms were entered in 2026.

Energy firms in Helsinki

Helsinki has 727 energy companies and energy firms, 0.5% of all 148,863 Helsinki companies and 118% above the national share. Nearly all Helsinki firms have fewer than five people; 8 have 50 or more. 28 new firms were entered in 2026, 8 date from before 1990.

Size

1-4 staff: 695 · 96%
5-9: 12 · 2%
10-19: 5 · 0.7%
20-49: 6 · 0.8%
50+: 8 · 1%

Legal form

Sole traders: 10 · 1%
Partnerships: 56 · 8%
Oy and Oyj: 641 · 88%
Other or none: 20 · 3%

Of the Finnish total: 24.0%
Of all Helsinki companies: 0.5%
Against the national share: 2.2×

New

Entered 2026 so far: 28
Entered 2025: 77
Of Finland's 2026 entries: 32.6%

Old

Before 1990: 8 · 1%
1990 or later: 719 · 99%
Of Finland's pre-1990 firms: 3.4%

Reachable

Email: 193 · 27%
Phone: 123 · 17%
Website: 268 · 37%

Revenue (USD)

Under $100K: 255 · 36%
$100K-$500K: 58 · 8%
$500K-$1M: 281 · 39%
$1M and more: 119 · 17%

Largest

1593
2313
3265
4239
5145

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Largest energy firms in Finland

The biggest firms by staff and by revenue, the largest in Helsinki. Click a name for the record.

Fortum Power and Heat Oy is the largest energy firm in Finland by headcount. 56 firms employ 50 people or more; 18 employ 100 or more.

1Esbo1,224 staff
2Euraåminne1,166 staff
3Helsinki593 staff
4Vanda320 staff
5Helsinki313 staff
6Turku287 staff
7Helsinki239 staff
8Jyväskylä223 staff
9Vanda195 staff
10Oulu182 staff

By employee size · 3,018 firms with a known headcount

Employees	Firms	%
1-4	2,655	88%
5-9	134	4%
10-19	80	3%
20-49	93	3%
50-99	38	1%
100-199	15	0.5%
200-499	1	<0.1%
500-999	2	<0.1%
1,000+	0	0%

88% have 1 to 4 people; 93 have 20 to 49; 56 have 50 or more.

By yearly revenue (USD)

Revenue	Firms	%
< $100K	932	39%
$100K-$500K	334	14%
$500K-$1M	618	26%
$1M-$5M	214	9%
$5M-$10M	82	3%
$10M-$50M	139	6%
$50M-$100M	33	1%
$100M-$500M	46	2%
$500M+	8	0.3%

39% under $100,000; 214 between $1M and $5M; 308 above $5M.

How reachable are they?

Energy firms are easier to reach than the average Finnish company: 25% list a phone number and 44% a website.

Email925 31%
Phone761 25%
Website1,345 44%

Grey line: all Finnish companies (email 14%, phone 9%, website 24%).

The full list with these fields is in our Finnish company database.

Sole traders or Oy: how they are organised

One in thirty-five Finnish energy firms work as sole traders, against 42% of all Finnish companies. Seven in ten are Oy and Oyj.

Sole traders (toiminimi)873%
Partnerships (Ay and Ky)763%
Oy and Oyj2,12270%
No form on record or other74225%

Single-site: 71%
Head offices: 261
Branches: 620

All Finnish companies: 42% sole traders, 2% partnerships, 30% Oy and Oyj.

Newcomers in Finland in 2026

86 energy firms were entered in the Finnish register so far in 2026, about 2 a week, after 219 in 2025. Finland as a whole saw 34,421 new companies in 2026, so this industry takes 0.2% of the inflow.

2752022
2942023
2182024
2192025
862026 so far

77 of this year's 86 are Oy and Oyj.

The biggest newcomers of 2026

The year is the register entry; an established firm that changes legal form appears as new.

1Forssa1 staff
21 staff
3Helsinki1 staff
4Nurmes1 staff
5Helsinki1 staff

How they compare

Next to related industries

There are 22 manufacturing companies for every energy firm in Finland.

Industry	Firms	Website	1-4 staff
Manufacturing Companies	66,413	25%	90%
Consulting Companies	31,718	30%	97%
Technology Companies	22,672	39%	91%
Transport Companies	21,379	27%	88%
Energy Companies	3,027	44%	88%
Logistics Companies	1,410	31%	87%

In other countries

Country	Firms	Per 1,000 cos.
France	242,823	16.9
The USA	163,207	2.6
India	89,687	2.3
Germany	52,431	7.7
Italy	46,669	6.6
Finland	3,027	2.2

More countries →

Free sample: energy firms in Europe

The oldest firms in Finland

Our data holds 1 Finnish energy firms from before 1900, 46 from before 1950 and 238 from before 1990.

1897
1. Vasa
1910
1. Vanda
1913
1. Kokemäki
1914
1. Harjavalta
1915
1. Loimaa
1916
1. Keuru

Older than you

Live tool

Move the slider to a year. Two live counts, scoped to this industry.

1990

238

Finnish energy firms date from before 1990

were entered in 1990

Frequently asked questions

How many energy companies are there in Finland?

There are 3,027 energy companies and energy firms in Finland in our data, counted on 7 November 2026. That is one in every 446 Finnish companies.

Which is the largest energy firm in Finland?

Fortum Power and Heat Oy in Esbo, with 1,224 staff.

Which Finnish city has the most energy companies?

Helsinki, with 727, ahead of Esbo (172), Tammerfors (80), Oulu (71) and Jyväskylä (66).

How many energy firms are there in Helsinki?

727, which is 0.5% of all 148,863 Helsinki companies and 118% above the national share.

How big is a typical energy firm?

Small. 88% of the 3,018 firms with a known headcount have one to four people; 56 have 50 or more. Most turn over under $100,000 a year.

Are Finnish energy companies sole traders or companies?

One in thirty-five (87) are sole traders, 3% are partnerships and 70% (2,122) are Oy and Oyj.

How many energy firms started in 2026?

86 were entered in the Finnish register so far in 2026, after 219 in 2025. 77 of them are Oy and Oyj.

What is the oldest energy firm in Finland?

Vaasan Sähkö Oy in Vasa, 1897, followed by Vantaan Energia Oy in Vanda (1910) and Kokemäen Sähkö Oy in Kokemäki (1913). 1 firm dates from before 1900.

Which industry code covers energy companies?

Finnish energy companies are classified under NACE Rev. 2 code 35. Our platform filters them on SIC 4911 (electric services), 4922 (natural gas transmission), 4923 (natural gas transmission and distribution) and 4924 (natural gas distribution) and 5 more.

Can I download the full list?

Yes. All 3,027 firms with address, phone, email, legal form, employees, revenue and founding year, as Excel, CSV or through the API.

Discover more: related industries, in other countries

The lists closest to this one. Every industry and city in Finland is on the Finland page.

Energy

Europe

Americas

Asia Pacific

Africa and Middle East

Energy Companies in South Africa

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