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The largest companies by turnover in Norway

in the industry Mining support service activities

	Company	Turnover (×1000) NOK
1	Aker Solutions AS	32 514 185
2	Subsea 7 Norway AS	10 658 413
3	Halliburton AS	8 940 000
4	Schlumberger Norge AS	8 785 969
5	Okea ASA	6 398 654
6	IKM Gruppen AS	5 256 611
7	Deepocean AS	4 705 934
8	Archer AS	3 733 233
9	Technip Norge AS	3 719 026
10	Baker Hughes Norge AS	3 636 548
11	Apply AS	2 729 241
12	Vetco Gray Scandinavia AS	2 569 339
13	Kaefer Energy AS	2 382 992
14	Beerenberg AS	2 338 884
15	Interwell AS	2 155 935
16	Beerenberg Services AS	2 132 871
17	Odfjell Invest AS	2 024 820
18	Bilfinger Nordics AS	1 923 360
19	KCA DEUTAG Drilling Norge AS	1 692 280
20	Ocean Installer AS	1 669 674
21	Oceaneering AS	1 668 004
22	Cosl Offshore Management AS	1 341 228
23	Kca Deutag Modu Operations AS	1 256 388
24	Altus Intervention AS	1 179 280
25	Reach Subsea ASA	1 161 533
26	Weatherford Norge AS	1 065 690
27	Van Oord Norway AS	1 060 798
28	DOF Subsea Norway AS	917 588
29	Odfjell Well Services Norway AS	914 332
30	Linjebygg AS	908 503
31	Istad AS	907 000
32	Tios AS	901 820
33	Scana ASA	886 666
34	Odfjell Drilling AS	849 097
35	Reach Subsea AS	824 316
36	Cameron Norge AS	803 325
37	Deepocean Management AS	786 482
38	Prosafe AS	713 363
39	Semco Maritime AS	705 141
40	Archer Norge AS	655 918
41	Slb Kristiansand AS	606 446
42	Certex Norge AS	605 644
43	Noble Drilling (Norway) AS	573 200
44	Eureka Group AS	547 539
45	Expro Norway AS	529 723
46	Tco Group AS	490 011
47	Altera Infrastructure Production AS	483 707
48	Transocean Norway Operations AS	468 856
49	Enhanced Drilling Holding AS	457 257
50	Aeron AS	417 907
51	Enhanced Drilling AS	393 435
52	Philly Shipyard ASA	392 706
53	Ik Group AS	386 408
54	BW Offshore Norway AS	379 264
55	Songa Offshore Rig 2 AS	346 705
56	Siem Offshore Maritime Personnel AS	328 812
57	Songa Offshore Rig 3 AS	327 990
58	Mohn Drilling AS	290 545
59	Transocean Services AS	290 083
60	Dof Subsea Rederi Iii AS	289 000
61	Siem Offshore Crewing AS	278 500
62	Psw Technology AS	222 295
63	Scan Tech AS	202 938
64	On & Offshore Holding AS	201 942
65	On & Offshore Services AS	200 964
66	Technip - Deepocean Prs Jv DA	200 579
67	Altera Infrastructure Production Crew AS	198 925
68	Ramco Norway AS	191 259
69	Rosen Norway AS	172 122
70	Akofs 2 AS	168 375
71	Saipem Drilling Norway AS	161 702
72	Jansen Invest AS	157 105
73	Axtech AS	149 371
74	Tdw Offshore Services AS	146 535
75	Subseapartner AS	145 332
76	Deep Cygnus Operation AS	140 301
77	Seadrill Norway Crew AS	132 898
78	Neodrill AS	113 925
79	Stimline AS	113 059
80	Ndt Global AS	111 006
81	Island Drilling Management AS	107 761
82	Siem Offshore AS	105 286
83	Toolserv AS	96 433
84	Noram Drilling AS	95 446
85	Magnora ASA	92 000
86	Akofs Offshore Operations AS	85 116
87	Soiltech Offshore Services AS	84 996
88	APL Norway AS	79 252
89	Hunter Group ASA	74 799
90	Jansen Og Willumsen Services AS	74 235
91	Saipem Limited Norway Branch	69 962
92	Deep Sea Drilling Company I AS	69 086
93	Supply Chain Management Services AS	64 771
94	Dolphin Drilling Offshore AS	63 132
95	Kraftentreprenøren AS	59 807
96	Techno Dive AS	56 667
97	Kca Deutag Drilling Offshore Services AS	50 723
98	Otech Marine Services Norway AS	48 104
99	Sarens AS	46 335
100	E Innovation Norge AS	45 903