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The largest companies by turnover in Norway

in the industry Architectural and engineering activities; technical testing and analysis

	Company	Turnover (×1000) NOK
1	Stiftelsen Det Norske Veritas	31 594 000
2	Oslo Universitetssykehus Hf	25 992 882
3	North European Oil Trade AS	18 560 283
4	DOF Subsea AS	8 627 000
5	Norconsult Norge AS	5 434 537
6	Onesubsea Processing AS	5 074 251
7	Greenbit AS	4 636 408
8	Siemens Energy AS	3 780 640
9	Archer AS	3 733 233
10	Wood Group Norway AS	3 354 075
11	Sweco Norge AS	2 877 961
12	Apply AS	2 729 241
13	Vedal AS	2 589 828
14	Cowi AS	2 462 164
15	Rambøll Norge AS	2 269 408
16	Asplan Viak AS	1 833 849
17	KCA DEUTAG Drilling Norge AS	1 692 280
18	Axio AS	1 677 657
19	Oceaneering AS	1 668 004
20	Bakkegruppen AS	1 628 984
21	Mde Group AS	1 620 928
22	Lime Petroleum AS	1 604 861
23	Pob Gruppen AS	1 542 151
24	Nrc Norge AS	1 452 102
25	Nov Process & Flow Technologies AS	1 305 833
26	Glastad AS	1 248 883
27	Reach Subsea ASA	1 161 533
28	Weatherford Norge AS	1 065 690
29	Head Energy AS	981 506
30	Bluenord ASA	967 000
31	Stiftelsen Norges Elektriske Materiellkontroll Nemko	959 255
32	Nemko Group AS	959 255
33	Fugro Norway AS	957 683
34	Kongsberg Digital AS	923 779
35	Wsp Norge AS	881 933
36	Petroleum Technology Company AS	863 319
37	Afry Norway Advisory AS	862 441
38	Ross Offshore AS	847 739
39	Tgs ASA	794 297
40	Deepocean Management AS	786 482
41	Vow ASA	782 797
42	Zaptec ASA	757 398
43	Goodtech AS	739 662
44	Dr Ing A Aas-Jakobsen AS	728 845
45	Nordlink Norge AS	724 317
46	Palfinger Marine Norway AS	723 643
47	Veni Metering AS	718 008
48	Siemens Gamesa Renewable Energy AS	710 174
49	Roxar Flow Measurement AS	693 862
50	Head Energy Consulting AS	670 181
51	Hrp AS	634 930
52	Deepocean Group Holding AS	617 983
53	Three60 Energy Norway AS	599 285
54	Flir Unmanned Aerial Systems AS	576 559
55	Norbit Subsea AS	575 395
56	Øie Gruppen AS	570 966
57	Vestas Norway AS	566 427
58	Odfjell Engineering AS	555 267
59	Kanfa AS	552 849
60	Nordren AS	543 433
61	Insenti AS	541 745
62	Seaonics AS	540 629
63	Dovre Group Energy AS	523 466
64	Snøhetta Oslo AS	504 045
65	Kaph Entreprenør AS	491 497
66	Norva24 Vest AS	481 858
67	North Sea Shipping Holding AS	469 559
68	Norsk Oljevernforening For Operatørselskap	459 375
69	Ses Energy AS	449 731
70	Momek Services AS	447 267
71	Strukta AS	441 722
72	Ramudden Norge AS	437 194
73	Cecon Contracting AS	431 400
74	Appear ASA	416 438
75	Optime Subsea AS	412 305
76	Imenco AS	410 595
77	Omega Subsea AS	390 127
78	Nekkar ASA	387 503
79	Gråfjell Holding AS	381 303
80	Voith Hydro AS	379 559
81	Teknotherm Marine AS	376 840
82	Oceaneering Asset Integrity AS	373 522
83	Geobird Management AS	369 351
84	Stingray Marine Solutions AS	361 864
85	Manta Marine Technologies AS	359 410
86	Tubus Holding AS	352 935
87	Metso Norway AS	348 982
88	Af Energi AS	348 304
89	Magseis Fairfield AS	346 888
90	Henning Larsen Architects AS	337 072
91	Tsg Holdco AS	333 493
92	Rtc Offshore AS	333 193
93	Tuboscope Norge AS	326 947
94	Kiwa Holding AS	321 628
95	Agility Fuel Solutions Norway AS	321 381
96	Fundament Gruppen AS	321 073
97	Archer Wellconnection AS	319 032
98	Afry Consult AS	300 857
99	Can Systems AS	292 427
100	Relokator AS	284 387