BIZTRAC BETA

Largest corporate groups by combined revenue in Oslo county

Groups ranked by the sum of their companies' most recently reported operating revenue. Companies are grouped by ultimate owner via majority ownership (over 50%%) in the ownership graph. Only groups with at least two companies.

Together the 100 companies on this list account for NOK 1831.0bn. Top of the list is NÆRINGS- OG FISKERIDEPARTEMENTET with NOK 257.7bn, ahead of JOH JOHANNSON HANDEL AS. The largest industry is auditing, with 5 companies.

# Company Combined revenue
1 NÆRINGS- OG FISKERIDEPARTEMENTET org.nr 912660680 · Oslo, Oslo · 309 companies NOK 257.7bn 2 JOH JOHANNSON HANDEL AS org.nr 921979819 · Oslo, Oslo · 332 companies NOK 252.1bn 3 Norsk Hydro ASA org.nr 914778271 · Oslo, Oslo · 19 companies NOK 89.3bn 4 COOP NORGE SA org.nr 936560288 · Oslo, Oslo · 82 companies NOK 80.8bn 5 AARS AS org.nr 993853712 · Oslo, Oslo · 117 companies NOK 59.7bn 6 DIXONS STORES GROUP RETAIL NORWAY AS org.nr 981305140 · Oslo, Oslo · 5 companies NOK 54.0bn 7 BAMA GRUPPEN AS org.nr 914224314 · Oslo, Oslo · 34 companies NOK 38.1bn 8 SAMFERDSELSDEPARTEMENTET org.nr 972417904 · Oslo, Oslo · 35 companies NOK 36.9bn 9 STATKRAFT SF org.nr 962986277 · Oslo, Oslo · 29 companies NOK 36.5bn 10 OSLO UNIVERSITETSSYKEHUS HF org.nr 993467049 · Oslo, Oslo · 8 companies NOK 36.0bn 11 FERD HOLDING AS org.nr 818035462 · Oslo, Oslo · 162 companies NOK 35.1bn 12 OSLO KOMMUNE org.nr 958935420 · Oslo, Oslo · 70 companies NOK 34.5bn 13 NORTURA SA org.nr 938752648 · Oslo, Oslo · 19 companies NOK 31.5bn 14 TINE SA org.nr 947942638 · Oslo, Oslo · 16 companies NOK 28.3bn 15 AF GRUPPEN ASA org.nr 938702675 · Oslo, Oslo · 96 companies NOK 28.1bn 16 Veidekke ASA org.nr 917103801 · Oslo, Oslo · 28 companies NOK 26.7bn 17 YARA INTERNATIONAL ASA org.nr 986228608 · Oslo, Oslo · 13 companies NOK 25.8bn 18 SKANSKA NORGE AS org.nr 943049467 · Oslo, Oslo · 28 companies NOK 24.1bn 19 SAINT-GOBAIN DISTRIBUTION NORWAY AS org.nr 991212531 · Oslo, Oslo · 18 companies NOK 22.1bn 20 BANE NOR SF org.nr 917082308 · Oslo, Oslo · 142 companies NOK 21.3bn 21 NEXANS NORWAY AS org.nr 981122607 · Oslo, Oslo · 5 companies NOK 20.7bn 22 STATNETT SF org.nr 962986633 · Oslo, Oslo · 5 companies NOK 20.3bn 23 OLAV THON STIFTELSEN org.nr 912868761 · Oslo, Oslo · 120 companies NOK 19.0bn 24 Aktieselskapet Vinmonopolet org.nr 817209882 · Oslo, Oslo · 2 companies NOK 18.7bn 25 ORKLA ASA org.nr 910747711 · Oslo, Oslo · 41 companies NOK 18.3bn 26 CIRCLE K AS org.nr 995532921 · Oslo, Oslo · 6 companies NOK 17.7bn 27 GE HEALTHCARE HOLDING AS org.nr 987015225 · Oslo, Oslo · 7 companies NOK 17.3bn 28 ST1 NORGE GROUP AS org.nr 919666544 · Oslo, Oslo · 6 companies NOK 16.3bn 29 CERMAQ GROUP AS org.nr 971647949 · Oslo, Oslo · 10 companies NOK 15.2bn 30 DEN NORSKE REVISORFORENING org.nr 980374068 · Oslo, Oslo · 2 companies NOK 14.4bn 31 TELIA NORGE AS org.nr 981929055 · Oslo, Oslo · 2 companies NOK 14.2bn 32 RUTER AS org.nr 991609407 · Oslo, Oslo · 6 companies NOK 13.9bn 33 NORGESGRUPPEN HELSE AS org.nr 916602162 · Oslo, Oslo · 2 companies NOK 11.9bn 34 O.N. SUNDE HOLDING AS org.nr 920170838 · Oslo, Oslo · 29 companies NOK 11.7bn 35 SYNAFERD AS org.nr 932441845 · Oslo, Oslo · 36 companies NOK 11.1bn 36 HAFSLUND KRAFT AS org.nr 976894677 · Oslo, Oslo · 5 companies NOK 11.0bn 37 OBOS BBL org.nr 937052766 · Oslo, Oslo · 246 companies NOK 10.4bn 38 STRAWBERRY HOLDING AS org.nr 985430764 · Oslo, Oslo · 112 companies NOK 9.8bn 39 BILIA NORGE AS org.nr 976023188 · Oslo, Oslo · 13 companies NOK 9.7bn 40 AHLSELL NORGE AS org.nr 910478656 · Oslo, Oslo · 19 companies NOK 9.7bn 41 ATEA ASA org.nr 920237126 · Oslo, Oslo · 3 companies NOK 9.6bn 42 SENTIA ASA org.nr 999256864 · Oslo, Oslo · 4 companies NOK 9.4bn 43 DNB BANK ASA org.nr 984851006 · Oslo, Oslo · 81 companies NOK 9.4bn 44 RINGNES NORGE AS org.nr 989668137 · Oslo, Oslo · 10 companies NOK 9.3bn 45 FORTUM CONSUMER SOLUTIONS AS org.nr 914551757 · Oslo, Oslo · 4 companies NOK 9.0bn 46 SUMMA CIRCULAR HOLDCO AS org.nr 831385022 · Oslo, Oslo · 30 companies NOK 8.5bn 47 VEND MARKETPLACES ASA org.nr 933739384 · Oslo, Oslo · 28 companies NOK 8.4bn 48 TGS ASA org.nr 976695372 · Oslo, Oslo · 11 companies NOK 7.8bn 49 STIFTELSEN TINIUS org.nr 976472667 · Oslo, Oslo · 25 companies NOK 7.8bn 50 DEEPOCEAN GROUP HOLDING AS org.nr 896696262 · Oslo, Oslo · 11 companies NOK 7.5bn 51 KULTUR- OG LIKESTILLINGSDEPARTEMENTET org.nr 972417866 · Oslo, Oslo · 8 companies NOK 7.4bn 52 CTS NORDICS HOLDING AS org.nr 929284631 · Oslo, Oslo · 8 companies NOK 7.4bn 53 ISS HOLDING AS org.nr 992086068 · Oslo, Oslo · 5 companies NOK 6.5bn 54 SIEMENS ENERGY AS org.nr 915826946 · Oslo, Oslo · 2 companies NOK 6.4bn 55 MULTICONSULT ASA org.nr 910253158 · Oslo, Oslo · 11 companies NOK 6.2bn 56 BAUDA AS org.nr 910431714 · Oslo, Oslo · 17 companies NOK 6.0bn 57 SOPRA STERIA AS org.nr 910909088 · Oslo, Oslo · 2 companies NOK 6.0bn 58 AMEDIASTIFTELSEN org.nr 817112242 · Oslo, Oslo · 139 companies NOK 5.8bn 59 HOSPITALITY INVEST AS org.nr 985096546 · Oslo, Oslo · 266 companies NOK 5.8bn 60 AYVENS NORGE AS org.nr 945098775 · Oslo, Oslo · 3 companies NOK 5.8bn 61 BRAVIDA NORGE HOLDING AS org.nr 998121221 · Oslo, Oslo · 3 companies NOK 5.7bn 62 COMPASS HOLDING NORGE AS org.nr 979369506 · Oslo, Oslo · 16 companies NOK 5.7bn 63 ASSEMBLIN CAVERION NORGE AS org.nr 943623341 · Oslo, Oslo · 7 companies NOK 5.7bn 64 GJELSTEN HOLDING AS org.nr 979580193 · Oslo, Oslo · 119 companies NOK 5.6bn 65 NCC NORGE AS org.nr 911274426 · Oslo, Oslo · 7 companies NOK 5.6bn 66 JORDANES HOLDING AS org.nr 920355285 · Oslo, Oslo · 23 companies NOK 5.2bn 67 BDO AS org.nr 993606650 · Oslo, Oslo · 4 companies NOK 5.2bn 68 NORSKE SKOG ASA org.nr 914483549 · Oslo, Oslo · 8 companies NOK 5.0bn 69 POSTNORD AS org.nr 984054564 · Oslo, Oslo · 3 companies NOK 4.9bn 70 BERGMETALL AS org.nr 910528610 · Oslo, Oslo · 36 companies NOK 4.9bn 71 LØVENSKIOLD-VÆKERØ AS org.nr 910947052 · Oslo, Oslo · 25 companies NOK 4.9bn 72 HEIDELBERG MATERIALS NORWAY AS org.nr 980910369 · Oslo, Oslo · 7 companies NOK 4.6bn 73 AVARN SECURITY GROUP HOLDING AS org.nr 926867970 · Oslo, Oslo · 14 companies NOK 4.5bn 74 ERNST & YOUNG AS org.nr 976389387 · Oslo, Oslo · 7 companies NOK 4.5bn 75 KOMMUNAL LANDSPENSJONSKASSE GJENSIDIG FORSIKRINGSSELSKAP org.nr 938708606 · Oslo, Oslo · 125 companies NOK 4.3bn 76 BOHUS ASA org.nr 992618175 · Oslo, Oslo · 5 companies NOK 4.3bn 77 AKERSHUS FYLKESKOMMUNE org.nr 930580783 · Oslo, Oslo · 16 companies NOK 4.3bn 78 PRICEWATERHOUSECOOPERS AS org.nr 987009713 · Oslo, Oslo · 2 companies NOK 4.2bn 79 DLVRY GROUP AS org.nr 927436272 · Oslo, Oslo · 22 companies NOK 4.2bn 80 SCATEC ASA org.nr 990918546 · Oslo, Oslo · 2 companies NOK 4.1bn 81 MEKO NORWAY HOLDING AS org.nr 936328008 · Oslo, Oslo · 26 companies NOK 4.1bn 82 BOUVET ASA org.nr 974442167 · Oslo, Oslo · 3 companies NOK 3.9bn 83 CTC TRIANGLE (NORWAY) I AS org.nr 998263158 · Oslo, Oslo · 3 companies NOK 3.9bn 84 VILFREDO AS org.nr 935302552 · Oslo, Oslo · 49 companies NOK 3.9bn 85 SWECO NORGE AS org.nr 967032271 · Oslo, Oslo · 2 companies NOK 3.9bn 86 SEAWAY 7 AS org.nr 824695792 · Oslo, Oslo · 16 companies NOK 3.9bn 87 YX NORGE AS org.nr 927810751 · Oslo, Oslo · 8 companies NOK 3.8bn 88 STOR-OSLO MOBILITY HOLDING AS org.nr 934610571 · Oslo, Oslo · 8 companies NOK 3.8bn 89 SOTRA LINK HOLDCO AS org.nr 928339785 · Oslo, Oslo · 2 companies NOK 3.7bn 90 SPAREBANKSTIFTELSEN DNB org.nr 984853971 · Oslo, Oslo · 7 companies NOK 3.7bn 91 FLOOR BIDCO AS org.nr 924600403 · Oslo, Oslo · 77 companies NOK 3.6bn 92 MANPOWERGROUP AS org.nr 985765820 · Oslo, Oslo · 10 companies NOK 3.6bn 93 HAWK INFINITY AS org.nr 916258720 · Oslo, Oslo · 228 companies NOK 3.6bn 94 CAPGEMINI NORGE AS org.nr 943574537 · Oslo, Oslo · 2 companies NOK 3.6bn 95 SKARVET HOLDING AS org.nr 989185756 · Oslo, Oslo · 11 companies NOK 3.6bn 96 JS BIDCO 2 AS org.nr 935038731 · Oslo, Oslo · 4 companies NOK 3.5bn 97 AMB NORWAY AS org.nr 995729237 · Oslo, Oslo · 4 companies NOK 3.5bn 98 DELOITTE AS org.nr 980211282 · Oslo, Oslo · 2 companies NOK 3.4bn 99 KPMG HOLDING AS org.nr 956878020 · Oslo, Oslo · 3 companies NOK 3.3bn 100 VIPPS HOLDING AS org.nr 920853013 · Oslo, Oslo · 10 companies NOK 3.3bn
Showing 100 companies

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Source

Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.

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.

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