List of companies formerly listed on the Oslo Stock Exchange, by date of delisting.
| Company | Listed | Delisted | Reason |
|---|---|---|---|
| Holmenkolbanen | 1975 | Acquired by Oslo Sporveier | |
| Pronova | 1996 | Acquired by Norsk Hydro | |
| Eiendomsselskapet Aker Brygge | 1996 | Acquired by Linstow | |
| Stolt Partner | 1996 | Merger with Stolt Nielsen | |
| Havtor | 1996 | Merger with Bergesen d.y. | |
| Rena Karton | 1996 | Acquired | |
| Vital Forsikring | 1996 | Acquired by Den norske Bank | |
| Grand Hotell | 1996 | Acquired by Eiendomspar | |
| Eeg Henriksen | 1996 | Acquired by NCC | |
| Multisoft | 1996 | Merger with SpecTech to form Visma | |
| Norgeskreditt | 1996 | Acquired by Kredittkassen | |
| Pacific Bassin Bulk Shipping | 1996 | Delisted | |
| Larvik Scandi Line | 1996 | Acquired by O. N. Sunde | |
| Micro Software Group | 1996 | Merger with Santech to form Santech Micro Group | |
| Maritime Group | 1996 | Merger with Aker Olje- og gassteknologi to form Aker Maritime | |
| Transocean | 1996 | Delisted | |
| Porsgrund Porselænsfabrik | 1996 | ||
| Chr. Bjelland | 1996 | ||
| Resource Group International | 1996 | 1997 | Merger Aker to form Aker RGI |
| Simrad | 1997 | ||
| Skaugen Petrotrans | 1997 | Merger with I. M. Skaugen | |
| Bøhler-Gruppen | 1997 | Merger with Steen & Strøm | |
| Bilspedisjon | 1997 | ||
| Protector Forsikring | 1997 | Acquired by Zürich | |
| Santech Micro Group | 1997 | Acquired by CHS Electronics | |
| Deepsea | 1996 | 1997 | Liquidated |
| Nycomed | 1996 | 1998 | Merger with Amersham to form Nycomed Amersham |
| Skipskredittforeningen | 1998 | ||
| Sævik Supply | 1996 | 1998 | Acquired by Trico Marine |
| Nordström & Thulin | 1998 | ||
| Brøvig Supply | 1998 | ||
| Marine Drilling Companies | 1998 | ||
| Legra | 1999 | Acquired by ITAB Industri | |
| Hunsfos Fabrikker | 1999 | Acquired by Cham-Tenero Paper Mills | |
| Merccur Tankers | 1999 | Acquired by Ganger Rolf | |
| Ugland Nordic Tanker | 1999 | Acquired by Ugland Nordic Shipping | |
| IBY Eiendom | 1999 | Acquired by City Finansiering | |
| Wenaas | 1996 | 1999 | Merger with Kansas Workwear |
| Fokus Bank | 1999 | Acquired by Danske Bank | |
| Ulstein Holding | 1997 | 1999 | Acquired by Vickers |
| Norway Seafoods | 1997 | 1999 | Acquired by Aker RGI |
| Wabo | 1998 | 1999 | Acquired by Wabo Holding |
| Sysdeco | 1998 | 1999 | Acquired by Kistefos |
| Bona Shipholding | 1999 | Merger with Teekay Shipping | |
| Iplast | 1997 | 1999 | Acquired by Mikron Holding |
| Saga Petroleum | 1999 | Acquired by Norsk Hydro and Statoil | |
| Adelsten | 1999 | Acquired by Kapp-Ahl | |
| Kansas Workwear | 1999 | Delisted | |
| Axis Biochemical | 1999 | ||
| Thrane-Gruppen | 1997 | 1999 | |
| Color Group | 1999 | Acquired by O. N. Sunde | |
| Linstow | 1999 | Acquired by Møllegaarden | |
| Helikopter Service | 1999 | Acquired by Vinland Helicopters | |
| ARK | 1999 | Acquired by Getronics International | |
| Norcool | 1997 | 1999 | Acquired by Letel |
| Finansbanken | 1999 | Acquired by Storebrand | |
| Media Holding | 1997 | 1999 | |
| Siem Industries | 1999 | ||
| Tecmar Technologies | 2000 | Delisted | |
| Aker RGI | 1997 | 2000 | Acquired by TRG |
| Bergensbanken | 2000 | Acquired by Storebrand | |
| Elkjøp | 2000 | Acquired by Dixons Stores Group | |
| Oslo Reassurance | 2000 | Acquired by Storebrand | |
| Stavdal | 1998 | 2000 | Acquired by Veidekke |
| Waterfront Shipping | 2000 | Acquired by Kistefos | |
| Hitec | 2000 | Acquired by National Oilwell | |
| Ivar Holding | 2000 | Acquired by Skips AS Abaco | |
| Mindex | 2000 | Acquired by Crew Development Corporation | |
| First Olsen Tankers | 2000 | Acquired by Bonheur and Ganger Rolf | |
| Norsk Lotteridrift | 1997 | 2000 | Acquired by Norsk Lotteridrift Forvaltning |
| Selmer | 2000 | Acquired by Skanska | |
| STK Alcatel | 2000 | Acquired by Alcatel | |
| Sydvaranger | 2000 | Acquired by Varanger Kraft | |
| Navia | 2000 | Acquired by Kongsberg Gruppen | |
| Proxima | 2000 | Merger with InFocus | |
| Stento | 2000 | Acquired by Sait Stento | |
| Bjølvefossen | 2000 | Acquired by Elkem | |
| Industrifinans Forvaltning | 1999 | 2000 | Acquired by Alfred Berg |
| NetCom | 1996 | 2000 | Acquired by Telia |
| Dyno Industrier | 2000 | Acquired by Nordkem | |
| Simrad Optronics | 2000 | ||
| Infostream | 1999 | 2000 | Acquired by Integra |
| NCL Holding | 2000 | Acquired by Arrasas | |
| Benor Tankers | 2000 | Acquired by TransPetrol Group | |
| Agresso | 2001 | Acquired by Unit4 | |
| Christiania Bank og Kredittkasse | 2001 | Acquired by MeritaNordbanken | |
| Navis | 1997 | 2001 | Acquired by Fred. Olsen Energy |
| Nortrans Offshore | 1998 | 2001 | Acquired by Prosafe |
| RC Gruppen | 1997 | 2001 | |
| Swan Reefer | 1997 | 2001 | |
| PC Lan | 1999 | 2001 | Acquired by Scribona |
| Customax | 2000 | 2001 | |
| Ugland Nordic Shipping | 2001 | ||
| Norsk Kjøkkeninvest | 2001 | Acquired by Whitecliff and Selvaag | |
| Enitel | 1999 | 2001 | Acquired by BaneTele |
| Winder | 2001 | Acquired by Frontline | |
| Team Shipping | 2001 | ||
| Actinor Shipping | 2001 | ||
| Western Bulk Shipping | 2001 | ||
| Scaninavia Online | 2000 | 2002 | |
| Alvern | 1996 | 2002 | |
| Reitan Narvesen | 1996 | 2002 | Acquired by Odd Reitan |
| SE Lables | 2002 | ||
| Evercom Network | 1997 | 2002 | |
| Braathens | 1991 | 2002 | Acquired by SAS Group |
| Aker Maritime | 1996 | 2002 | |
| TeleCast | 2002 | ||
| Unit 4 Agresso | 2000 | 2002 | |
| Atlantic Container Line | 2002 | ||
| Moelven Industrier | 2002 | Acquired by Eidsiva Energi and the Norwegian Forest Owners Association | |
| Intellinet | 2000 | 2002 | |
| Enwa | 2001 | 2002 | |
| Loki | 2003 | ||
| Hydralift | 1996 | 2003 | |
| Igroup | 2000 | 2003 | Merger with PSI Group |
| Nordlandsbanken | 2003 | Acquired by Den norske Bank | |
| Oceanor | 2001 | 2003 | |
| Investra | 2003 | ||
| Pan Pelagic | 2003 | ||
| Awilco | 2003 | ||
| Zenitel | 2003 | ||
| Bergen Nordhordland Rutelag | 2003 | Merger with Troms Fylkes Dampskibsselskap | |
| Nordic Water Supply | 1998 | 2003 | |
| Officeshop Holding | 2003 | ||
| Leif Höegh & Co | 2003 | ||
| Roxar | 2003 | ||
| MediaBin | 2003 | ||
| Sense Communications | 2000 | 2003 | Merger with Chess Communication |
| Bergesen d.y. | 2003 | Acquired by World-Wide Shipping | |
| SensoNor | 2003 | ||
| Havila Supply | 1998 | 2003 | |
| Tordenskjold | 1997 | 2003 | |
| InFocus | 2000 | 2003 | |
| Industrifinans Boligeiendom | 2003 | ||
| Scribona | 2001 | 2003 | |
| A-pressen | 1998 | 2003 | Acquired by Telenor, Fritt Ord and Norwegian Confederation of Trade Unions |
| OHI | 2003 | ||
| Gjensidige NOR | 1999 | 2003 | Merger with Den norske Bank to form DnB NOR and Gjensidige |
| Den norske Bank | 1995 | 2003 | Merger with Gjensidige NOR to form DnB NOR |
| Voice | 2003 | ||
| Crystal Production | 2003 | ||
| Noral | 2004 | ||
| Raufoss | 2004 | Acquired by Norsk Hydro | |
| Frontier Drilling | 2001 | 2004 | |
| Amersham | 1997 | 2004 | Delisted |
| Avantor | 2004 | ||
| Kenor | 2004 | ||
| Linde-Group | 2004 | ||
| Northern Offshore | 1998 | 2004 | |
| Kristiansand Zoo and Amusement Park | 2004 | ||
| Mefjorden | 2004 | Merger with DiaGenic | |
| Klippen Invest | 2004 | 2004 | |
| Industrifinans Næringseiendom | 2004 | ||
| Kredittbanken | 1997 | 2005 | |
| Nordic American Tanker | 2005 | ||
| Tsakos Energy Navigation | 2005 | ||
| Bolig- og Næringsbanken | 2005 | Acquired by Islandsbanki | |
| Elkem | 2005 | Acquired by Orkla Group | |
| Axxessit | 2004 | 2005 | |
| Exploration Resources | 2005 | Acquired | |
| Via Travel Group | 2005 | 2005 | Acquired |
| Privatbanken | 2004 | 2005 | Acquired by Skandinaviska Enskilda Banken |
| Catch Communication | 2004 | 2005 | Acquired by Ventelo |
| Choice Hotels Scandinavia | 1997 | 2005 | Acquired by Petter Stordalen |
| Findexa | 2004 | 2005 | Acquired by Eniro |
| SeaDrill Invest | 2005 | Acquired | |
| Unitor | 2006 | Acquired by Wilhelmsen Lines | |
| Hands | 2000 | 2006 | Acquired by Köguns |
| IBAS | 2004 | 2006 | |
| Troms Fylkes Dampskibsselskap | 2003 | 2006 | Merger with Ofotens og Vesteraalens Dampskibsselskab to form Hurtigruten Group |
| HÅG | 2006 | Acquired by Rondane Holding | |
| Guinor Gold Corporation | 2005 | 2006 | Bankrupt |
| Opticom | 1997 | 2006 | |
| Oslo Areal | 2005 | 2006 | |
| Smedvig | 2006 | ||
| Technor | 2006 | ||
| Consafe Offshore | 2005 | 2006 | Acquired by Prosafe |
| Visma | 2006 | ||
| Active 24 | 2004 | 2006 | Acquired by Mamut |
| Nera | 2006 | Merger with Eltek | |
| Nemi Forsikring | 2006 | Acquired by Tryggingamiðstöðin | |
| Andvord Tybring-Gjedde | 2006 | Acquired by Buhrmann | |
| Rica | 2006 | ||
| P4 Radio Hele Norge | 2006 | Acquired by Modern Times Group | |
| Deep Sea Supply | 2007 | Acquired by Deep Sea Supply plc | |
| Polimoon | 2007 | ||
| Sinvest | 2001 | 2007 | Acquired by Aban |
| Fesil | 2007 | ||
| Captura | 2006 | 2007 | |
| Conseptor | 2007 | ||
| Tandberg Television | 1997 | 2007 | |
| APL | 2005 | 2007 | |
| Eastern Drilling | 2007 | Acquired by SeaDrill | |
| Norsk Vekst | 2000 | 2007 | Acquired by Arendals Fossekompani |
| Spits | 2006 | 2007 | |
| Steen & Strøm | 2007 |