Largest employers by headcount in Bergverksdrift og utvinning
Ranked by registered headcount.
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
Employees
1
EQUINOR ASA
org.nr 923609016 · Stavanger, Rogaland · Active
21,327
2
AKER SOLUTIONS AS
org.nr 929877950 · Bærum, Akershus · Active
8,926
3
AKER BP ASA
org.nr 989795848 · Bærum, Akershus · Active
3,097
4
HALLIBURTON AS
org.nr 968967983 · Sola, Rogaland · Active
2,529
5
SCHLUMBERGER NORGE AS
org.nr 968360302 · Stavanger, Rogaland · Active
2,411
6
KAEFER ENERGY AS
org.nr 910608193 · Stavanger, Rogaland · Active
1,764
7
CONOCOPHILLIPS NORGE NUF
org.nr 948138646 · Sola, Rogaland · Active
1,480
8
VÅR ENERGI ASA
org.nr 919160675 · Sandnes, Rogaland · Active
1,460
9
BEERENBERG SERVICES AS
org.nr 926146459 · Bergen, Vestland · Active
1,437
10
DEEP SEA MANAGEMENT AS
org.nr 883462092 · Bergen, Vestland · Active
1,406
11
ONESUBSEA AS
org.nr 929765001 · Bærum, Akershus · Active
1,267
12
ARCHER AS
org.nr 934361156 · Sandnes, Rogaland · Active
1,259
13
BAKER HUGHES NORGE AS
org.nr 980353273 · Sola, Rogaland · Active
1,185
14
BILFINGER ISP OFFSHORE NORWAY AS
org.nr 932066351 · Sola, Rogaland · Active
1,180
15
TRANSOCEAN NORWAY OPERATIONS AS
org.nr 990687846 · Stavanger, Rogaland · Active
1,064
16
IKM TESTING AS
org.nr 964381224 · Sola, Rogaland · Active
1,016
17
APPLY AS
org.nr 930694533 · Sola, Rogaland · Active
980
18
DEEPOCEAN AS
org.nr 980722805 · Haugesund, Rogaland · Active
955
19
KCA DEUTAG DRILLING NORGE AS
org.nr 918357688 · Bergen, Vestland · Active
875
20
WOOD GROUP NORWAY AS
org.nr 976802357 · Sandefjord, Vestfold · Active
807
21
SUBSEA 7 NORWAY AS
org.nr 936742475 · Sola, Rogaland · Active
731
22
OCEANEERING AS
org.nr 932925753 · Sandnes, Rogaland · Active
715
23
COSL OFFSHORE MANAGEMENT AS
org.nr 991006494 · Sandnes, Rogaland · Active
709
24
LINJEBYGG AS
org.nr 929768396 · Molde, Møre og Romsdal · Active
670
25
OKEA ASA
org.nr 915419062 · Trondheim, Trøndelag · Active
543
26
VETCO GRAY SCANDINAVIA AS
org.nr 990441545 · Stavanger, Rogaland · Active
507
27
MIBAU STEMA NORGE AS
org.nr 958990022 · Suldal, Rogaland · Active
492
28
A/S Norske Shell
org.nr 914807077 · Stavanger, Rogaland · Active
448
29
ODFJELL OPERATIONS AS
org.nr 963228252 · Bergen, Vestland · Active
417
30
INTERWELL NORWAY AS
org.nr 980404048 · Sola, Rogaland · Active
409
31
ISLAND OFFSHORE MANAGEMENT AS
org.nr 984285310 · Ulstein, Møre og Romsdal · Active
402
32
ALTUS INTERVENTION AS
org.nr 829046652 · Sola, Rogaland · Active
394
33
KCA DEUTAG MODU OPERATIONS AS
org.nr 979392710 · Bergen, Vestland · Active
381
34
RANA GRUBER AS
org.nr 953049724 · Rana, Nordland · Active
373
35
ARCHER NORGE AS
org.nr 991478450 · Sandnes, Rogaland · Active
366
36
NOV PROCESS & FLOW TECHNOLOGIES AS
org.nr 918094180 · Bærum, Akershus · Active
340
37
HARBOUR ENERGY NORGE AS
org.nr 985224323 · Stavanger, Rogaland · Active
324
38
OLYMPIC CREWING AS
org.nr 987711973 · Herøy, Møre og Romsdal · Active
292
39
PSW TECHNOLOGY AS
org.nr 990566739 · Alver, Vestland · Active
283
40
WEATHERFORD NORGE AS
org.nr 955516850 · Sandnes, Rogaland · Active
268
41
EXPRO NORWAY AS
org.nr 991954023 · Sola, Rogaland · Active
263
42
TITANIA AS
org.nr 916769318 · Sokndal, Rogaland · Active
259
43
SIBELCO NORDIC AS
org.nr 965724737 · Vanylven, Møre og Romsdal · Active
240
44
SAIPEM DRILLING NORWAY AS
org.nr 998277418 · Sola, Rogaland · Active
239
45
DNO NORGE AS
org.nr 996888177 · Stavanger, Rogaland · Active
204
46
ALTERA INFRASTRUCTURE PRODUCTION AS
org.nr 939545832 · Trondheim, Trøndelag · Active
198
47
OCEAN INSTALLER AS
org.nr 996713156 · Sola, Rogaland · Active
194
48
SLB KRISTIANSAND AS
org.nr 981919971 · Kristiansand, Agder · Active
194
49
APL NORWAY AS
org.nr 966058013 · Arendal, Agder · Active
190
50
ARCHER VERTIKAL AS
org.nr 991193979 · Volda, Møre og Romsdal · Active
190
51
ODFJELL OFFSHORE LTD NUF
org.nr 916689799 · Bergen, Vestland · Active
189
52
SEA1 MARINE CREW AS
org.nr 933828123 · Kristiansand, Agder · Active
186
53
ODFJELL WELL SERVICES NORWAY AS
org.nr 983793347 · Sola, Rogaland · Active
179
54
SHELF DRILLING (NORWAY) AS
org.nr 930832421 · Sandnes, Rogaland · Active
178
55
ISLAND OFFSHORE CREWING AS
org.nr 995955881 · Ulstein, Møre og Romsdal · Active
176
56
IKM SUBSEA AS
org.nr 891266022 · Time, Rogaland · Active
174
57
ARCHER OILTOOLS AS
org.nr 968145843 · Sandnes, Rogaland · Active
174
58
ISLAND DRILLING CREWING AS
org.nr 921499906 · Ulstein, Møre og Romsdal · Active
173
59
ODFJELL DRILLING AS
org.nr 984669151 · Bergen, Vestland · Active
170
60
NOV WELLBORE TECHNOLOGIES NORWAY LLC NUF
org.nr 985377545 · Stavanger, Rogaland · Active
163
61
REPSOL NORGE AS
org.nr 993787787 · Stavanger, Rogaland · Active
159
62
ON & OFFSHORE SERVICES AS
org.nr 986012273 · Kristiansand, Agder · Active
158
63
OMEGA SUBSEA AS
org.nr 997898923 · Bergen, Vestland · Active
154
64
ENHANCED DRILLING AS
org.nr 978712606 · Øygarden, Vestland · Active
151
65
ODFJELL TECHNOLOGY AS
org.nr 919580240 · Bergen, Vestland · Active
137
66
RAMCO NORWAY AS
org.nr 934287525 · Kinn, Vestland · Active
127
67
GUNNAR HOLTH GRUSFORRETNING AS
org.nr 912774244 · Kongsvinger, Innlandet · Active
125
68
AKOFS NORWAY OPERATIONS AS
org.nr 920901387 · Oslo, Oslo · Active
123
69
LUNDHS AS
org.nr 993071641 · Larvik, Vestfold · Active
122
70
THREE60 ENERGY NORWAY AS
org.nr 996926524 · Stavanger, Rogaland · Active
121
71
HAVILA SUBSEA CREWING AS
org.nr 991809902 · Herøy, Møre og Romsdal · Active
121
72
BW OFFSHORE NORWAY AS
org.nr 995682346 · Oslo, Oslo · Active
120
73
ORLEN UPSTREAM NORWAY AS
org.nr 991317155 · Sola, Rogaland · Active
113
74
WELLTEC OILFIELD SERVICES (NORWAY) AS
org.nr 914426235 · Bergen, Vestland · Active
109
75
FRANZEFOSS PUKK AS
org.nr 982153018 · Bærum, Akershus · Active
107
76
ENGEBØ RUTILE AND GARNET AS
org.nr 990691606 · Sunnfjord, Vestland · Active
106
77
DOF SUBSEA NORWAY AS
org.nr 888131442 · Bergen, Vestland · Active
106
78
TOTALENERGIES EP NORGE AS
org.nr 927066440 · Stavanger, Rogaland · Active
102
79
FEIRING BRUK AS
org.nr 943142947 · Lørenskog, Akershus · Active
93
80
SEA1 OFFSHORE CREW AS
org.nr 990652821 · Kristiansand, Agder · Active
91
81
FRANZEFOSS MINERALS AS
org.nr 882153002 · Bærum, Akershus · Active
91
82
SCAN TECH AS
org.nr 974348128 · Stavanger, Rogaland · Active
90
83
TCO NORWAY AS
org.nr 932406659 · Bergen, Vestland · Active
90
84
INPEX IDEMITSU NORGE AS
org.nr 953133210 · Bærum, Akershus · Active
86
85
ODFJELL WELL SERVICES AS
org.nr 918646132 · Bergen, Vestland · Active
85
86
COSL NORWEGIAN AS
org.nr 992831510 · Sandnes, Rogaland · Active
84
87
OMV NORGE AS
org.nr 988400025 · Stavanger, Rogaland · Active
84
88
NORTH SEA OFFSHORE AS
org.nr 996482545 · Austevoll, Vestland · Active
80
89
PETORO AS
org.nr 983382355 · Stavanger, Rogaland · Active
79
90
TDW OFFSHORE SERVICES AS
org.nr 979836546 · Stavanger, Rogaland · Active
75
91
FORCE TECHNOLOGY NORWAY AS
org.nr 985586632 · Asker, Akershus · Active
74
92
GABBRO NOR AS
org.nr 874227862 · Nesna, Nordland · Active
71
93
FOURPHASE AS
org.nr 998191742 · Bergen, Vestland · Active
70
94
AXTECH AS
org.nr 887062552 · Molde, Møre og Romsdal · Active
69
95
SCORE AS
org.nr 967555282 · Randaberg, Rogaland · Active
69
96
SUB SEA SERVICES AS
org.nr 982734150 · Stavanger, Rogaland · Active
68
97
STAVEN GRUS AS
org.nr 924966246 · Øksnes, Nordland · Active
67
98
SEA1 OFFSHORE AS
org.nr 990673586 · Kristiansand, Agder · Active
67
99
KANFA AS
org.nr 983756913 · Bærum, Akershus · Active
63
100
BRØNNØY KALK AS
org.nr 979112106 · Brønnøy, Nordland · Active
61
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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.