Oldest companies still trading in Elektrisitet, gass og varmtvann
Active companies ranked by incorporation date — oldest first. The incorporation date is missing for some older companies in the register.
Largest by revenue
Most profitable
Highest operating margin
Revenue per employee
Operating profit per employee
Payroll cost per employee
Largest equity
Largest groups
Largest employers
Newly registered companies
Oldest companies
#
Company
Incorporated
1
TINFOS AS
org.nr 916763476 · Notodden, Telemark · Active
28 Aug 1894
2
ARENDALS FOSSEKOMPANI ASA
org.nr 910261525 · Froland, Agder · Active
30 Jan 1896
3
HOPSFOSSEN KRAFTSTASJON AS
org.nr 933062384 · Bergen, Vestland · Active
10 Feb 1896
4
HAFSLUND PRODUKSJON HOLDING AS
org.nr 912230252 · Oslo, Oslo · Active
18 Mar 1898
5
HELLEFOSS KRAFT AS
org.nr 912756734 · Øvre Eiker, Buskerud · Active
25 May 1898
6
CHR SALVESEN & CHR THAMS'S COMMUNICATIONS AKTIESELSKAB
org.nr 915640850 · Bergen, Vestland · Active
18 Jul 1898
7
HYDRO RENEWABLES HOLDING AS
org.nr 923263985 · Oslo, Oslo · Active
26 Nov 1900
8
HYDRO ENERGI AS
org.nr 930187240 · Oslo, Oslo · Active
30 Apr 1903
9
AKTIESELSKABET TYSSEFALDENE
org.nr 916958900 · Ullensvang, Vestland · Active
20 Apr 1906
10
NUMEDALS LAUGENS BRUGSEIERFORENING
org.nr 980923207 · Nore Og Uvdal, Buskerud · Active
15 Sep 1906
11
AS VADHEIM ELEKTROCHEMISKE FABRIKER
org.nr 917045658 · Høyanger, Vestland · Active
26 Jun 1907
12
ARENDALS VASDRAGS BRUGSEIERFORENING
org.nr 847088842 · Arendal, Agder · Active
4 Oct 1907
13
Aktieselskabet Saudefaldene
org.nr 915729290 · Sauda, Rogaland · Active
8 Jul 1913
14
UTVIK ELEKTRISITETSVERK SA
org.nr 954904504 · Stryn, Vestland · Active
10 Aug 1913
15
AS EIDEFOSS
org.nr 911305631 · Vågå, Innlandet · Active
1 Jan 1916
16
SVATSUM ELEKTRISITETSVERK AS
org.nr 916452705 · Gausdal, Innlandet · Active
9 Feb 1917
17
SKODRE SA
org.nr 948067323 · Aurskog-høland, Akershus · Active
1 Jan 1919
18
ØSTIGÅRD OG NÆVERRØSTEN VANNVERK BA
org.nr 995332582 · Tynset, Innlandet · Active
1 Apr 1919
19
DRAGEFOSSEN AS
org.nr 911204177 · Saltdal, Nordland · Active
17 Aug 1928
20
AS EGELANDS VERK
org.nr 911281732 · Oslo, Oslo · Active
20 Dec 1928
21
TYNNA KRAFTVERK SA
org.nr 970959920 · Rennebu, Trøndelag · Active
11 Jun 1934
22
LÆRDAL ENERGI AS
org.nr 914078865 · Lærdal, Vestland · Active
27 Dec 1934
23
FITJAR KRAFTLAG SA
org.nr 971028548 · Fitjar, Vestland · Active
10 Apr 1935
24
SVANEDAL AS
org.nr 916447264 · Stavanger, Rogaland · Active
26 Apr 1935
25
ROLLAG ENERGI AS
org.nr 957896928 · Rollag, Buskerud · Active
15 Jul 1939
26
RAULAND KRAFTFORSYNINGSLAG SA
org.nr 915317898 · Vinje, Telemark · Active
26 Mar 1940
27
VEST-TELEMARK KRAFTLAG AS
org.nr 955996836 · Tokke, Telemark · Active
13 Sep 1940
28
NORD-ØSTERDAL KRAFTLAG SA
org.nr 948526786 · Tynset, Innlandet · Active
30 Sep 1944
29
FINNÅS KRAFTLAG SA
org.nr 944664440 · Bømlo, Vestland · Active
23 Mar 1946
30
FUSA KRAFTLAG SA
org.nr 858837162 · Bjørnafjorden, Vestland · Active
23 Mar 1946
31
AUSTEVOLL KRAFTLAG SA
org.nr 959254893 · Austevoll, Vestland · Active
25 Mar 1946
32
TYSNES KRAFTLAG AS
org.nr 848382922 · Tysnes, Vestland · Active
26 Mar 1946
33
SUNNHORDLAND KRAFTLAG AS
org.nr 916435711 · Stord, Vestland · Active
28 Mar 1946
34
SUNNMØRE ENERGI AS
org.nr 916579020 · Ørsta, Møre og Romsdal · Active
27 Jul 1946
35
VINSTRA KRAFTSELSKAP DA
org.nr 944001751 · Lillehammer, Innlandet · Active
2 Aug 1946
36
SOGNEKRAFT PRODUKSJON AS
org.nr 916069634 · Vik, Vestland · Active
14 Mar 1947
37
FIRDAKRAFT AS
org.nr 911647605 · Gloppen, Vestland · Active
4 Jun 1947
38
UVDAL KRAFTFORSYNING SA
org.nr 967670170 · Nore Og Uvdal, Buskerud · Active
27 Dec 1947
39
ALTA KRAFTLAG SA
org.nr 971029390 · Alta, Finnmark · Active
23 Mar 1948
40
RISSA KRAFTLAG SA
org.nr 915420400 · Indre Fosen, Trøndelag · Active
7 Aug 1948
41
RØDØY-LURØY KRAFTVERK AS
org.nr 915558119 · Rødøy, Nordland · Active
22 Aug 1948
42
SKAFSÅ KRAFTVERK ANS
org.nr 840044262 · Tokke, Telemark · Active
27 Sep 1948
43
BINDAL KRAFTLAG SA
org.nr 953181606 · Bindal, Nordland · Active
29 May 1950
44
INNTRE ENERGI AS
org.nr 979237472 · Steinkjer, Trøndelag · Active
20 Dec 1950
45
SODVIN HOLDING AS
org.nr 947537792 · Heim, Trøndelag · Active
31 May 1951
46
OPPLANDSKRAFT DA
org.nr 944237631 · Lillehammer, Innlandet · Active
9 Mar 1954
47
LAUKI OG MELEI KRAFTLAG SA
org.nr 970541896 · Stryn, Vestland · Active
31 Oct 1954
48
PORSA KRAFTLAG AS
org.nr 915231640 · Hammerfest, Finnmark · Active
10 Jul 1956
49
TUSSA KRAFT AS
org.nr 916929641 · Ørsta, Møre og Romsdal · Active
19 Dec 1956
50
LINNVASSELV KRAFTLAG SA
org.nr 979249764 · Steinkjer, Trøndelag · Active
23 Nov 1959
51
SVORKA ENERGI AS
org.nr 919763159 · Surnadal, Møre og Romsdal · Active
5 Jul 1960
52
OTRA KRAFT DA
org.nr 955007514 · Valle, Agder · Active
1 Sep 1960
53
BAGN KRAFTVERK DA
org.nr 971034696 · Porsgrunn, Telemark · Active
4 Dec 1961
54
YMBER PRODUKSJON AS
org.nr 913680294 · Nordreisa, Troms · Active
27 Jan 1962
55
SUNDSBARM KRAFTVERK DA
org.nr 971034793 · Porsgrunn, Telemark · Active
17 Apr 1962
56
RØLDAL-SULDAL KRAFT AS
org.nr 915569501 · Suldal, Rogaland · Active
15 Feb 1963
57
SIRA KVINA KRAFTSELSKAP
org.nr 954090493 · Sirdal, Agder · Active
4 Sep 1963
58
BOGERUD VARMESENTRAL AS
org.nr 921773331 · Oslo, Oslo · Active
10 Feb 1965
59
DRIVA KRAFTVERK DA
org.nr 947590618 · Trondheim, Trøndelag · Active
28 Nov 1966
60
AS LØVENSTAD FYRINGS- OG SERVICESENTRAL
org.nr 926631144 · Lillestrøm, Akershus · Active
8 Mar 1967
61
AS AMMERUD VARMESENTRAL
org.nr 920474659 · Oslo, Oslo · Active
23 May 1969
62
SAMEIET FYRSENTRALEN SOL
org.nr 915627145 · Bergen, Vestland · Active
14 Jun 1969
63
Tokerud Varmesentral AS
org.nr 921587775 · Oslo, Oslo · Active
7 Dec 1971
64
ISTAD KRAFT AS
org.nr 923253920 · Molde, Møre og Romsdal · Active
4 Jun 1973
65
KRAFTVERKENE I ORKLA DA
org.nr 947576283 · Trondheim, Trøndelag · Active
14 Feb 1974
66
STUEFLOTTEN AS
org.nr 923284966 · Lesja, Innlandet · Active
1 Nov 1974
67
FINNDØLA KRAFTVERK DA
org.nr 971037253 · Porsgrunn, Telemark · Active
7 May 1975
68
SKS PRODUKSJON AS
org.nr 915637353 · Fauske, Nordland · Active
9 Jul 1975
69
KVIKNE-RENNEBU KRAFTLAG AS
org.nr 955664361 · Rennebu, Trøndelag · Active
10 Dec 1975
70
ÅBJØRAKRAFT KOLSVIK KRAFTVERK
org.nr 979947003 · Vefsn, Nordland · Active
15 Jun 1976
71
REN RØROS AS
org.nr 915591302 · Røros, Trøndelag · Active
15 Jul 1976
72
MUSKENSENTER AS
org.nr 829235412 · Hamarøy, Nordland · Active
4 Dec 1976
73
BOEN FOSS AS
org.nr 917998760 · Kristiansand, Agder · Active
2 Jan 1978
74
NORDKRAFT MAGASIN AS
org.nr 928657213 · Narvik, Nordland · Active
14 Feb 1978
75
SKOLLENBORG KRAFTVERK DA
org.nr 942110197 · Drammen, Buskerud · Active
28 Apr 1978
76
GRENDA HUSET AS
org.nr 929351290 · Kvinnherad, Vestland · Active
4 Jan 1980
77
ISTAD AS
org.nr 913004043 · Molde, Møre og Romsdal · Active
26 Sep 1980
78
GJESVÆR SERVICE AS
org.nr 831972882 · Nordkapp, Finnmark · Active
25 Oct 1981
79
USTEKVEIKJA KRAFTVERK DA
org.nr 971040246 · Hol, Buskerud · Active
25 Mar 1982
80
BT ENERGIDRIFT AS
org.nr 932313286 · Eidskog, Innlandet · Active
1 Aug 1982
81
LUSTER ENERGIVERK AS
org.nr 933297292 · Luster, Vestland · Active
22 Jun 1983
82
MOSSEFOSSEN ANS
org.nr 950246901 · Sarpsborg, Østfold · Active
1 Jul 1985
83
SØRFJORD KRAFT AS
org.nr 942474024 · Dyrøy, Troms · Active
5 Nov 1986
84
GUDBRANDSDAL ENERGI PRODUKSJON AS
org.nr 941739601 · Nord-fron, Innlandet · Active
3 Dec 1986
85
SARP KRAFTSTASJON AS
org.nr 943646465 · Indre Østfold, Østfold · Active
18 May 1987
86
VESTKRAFT A/S
org.nr 947083503 · Stord, Vestland · Active
23 Feb 1988
87
HYDRO ALUMINIUM AS HYDRO ENERGI SOGN
org.nr 971148845 · Årdal, Vestland · Active
29 Jun 1988
88
Orneset Eiendomsselskap AS
org.nr 948100320 · Lavangen, Troms · Active
16 Aug 1988
89
MYKLEBY MASKIN AS
org.nr 950311916 · Stor-elvdal, Innlandet · Active
15 Dec 1988
90
RØSTAD E-VERK OG MASKIN AS
org.nr 951595012 · Indre Fosen, Trøndelag · Active
2 Jan 1989
91
SKOROVASKRAFT AS
org.nr 952629808 · Namsskogan, Trøndelag · Active
2 Jul 1989
92
GRIUG AS
org.nr 953681781 · Nord-aurdal, Innlandet · Active
5 Sep 1989
93
LUNDSFOSS KRAFTSTASJON AS
org.nr 959395721 · Aurskog-høland, Akershus · Active
25 Oct 1990
94
NEAS ENERGI TELEKOM AS
org.nr 960684737 · Kristiansund, Møre og Romsdal · Active
8 Nov 1990
95
MILJØKRAFT ANS
org.nr 859550622 · Rælingen, Akershus · Active
27 Dec 1990
96
RESYM AS
org.nr 960246624 · Oslo, Oslo · Active
28 Dec 1990
97
NEDRE MOLLISJOK KRAFTVERK BA
org.nr 961055296 · Karasjok, Finnmark · Active
10 Mar 1991
98
VOLLAKVERNFALLET AS
org.nr 960760778 · Kvinnherad, Vestland · Active
14 Apr 1991
99
STUTTGONGFOSSEN KRAFTVERK AS
org.nr 962091059 · Vågå, Innlandet · Active
15 May 1991
100
VIUL KRAFT AS
org.nr 961113539 · Ringerike, Buskerud · Active
24 Jun 1991
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Source
Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.
The list is ranked on the most recently reported financial figures. See method and caveats below.
These lists show actual registered figures from public sources (the Brønnøysund registers). They are not an assessment of creditworthiness, solidity or suitability as a customer, supplier or investment. Figures are for the most recently reported financial year.