Items in Red are Distribution Denied
Note: These items are from the legacy database until our new database is live.
| Publisher | Last Owner | Country | Distribution |
|---|---|---|---|
| O-Set | Russia | Unknown | |
| O. Garcia | Spain | Unknown | |
| O. Hohlov | Russia | Unknown | |
| O. Kuznetsov | Russia | Unknown | |
| O. Przesmycki | Poland | Unknown | |
| O. Seaman | UK | Unknown | |
| O. Steen Hansen | Denmark | Unknown | |
| O.E. Ltd | UK | Unknown | |
| O.I.C. Ltd | UK | Unknown | |
| O.Sheen Software | UK | Unknown | |
| O&F | Russia | Unknown | |
| OAM | Spain | Unknown | |
| Oasis Software | UK | Unknown | |
| Oberon Group | Ukraine | Unknown | |
| Oblique Strategy | UK | Unknown | |
| oblo | oblo | Spain | Allowed |
| Ocean Software Ltd | Atari Inc | UK | Unknown |
| Ocean-Imagine Hellas | Greece | Unknown | |
| OCTA Soft | Hungary | Unknown | |
| Octavio Campos Barroso | Spain | Unknown | |
| Octavio Montagud Ballester | Spain | Unknown | |
| OCTOCOM | OCTOCOM | Spain | Allowed |
| Octocon Data | Norway | Unknown | |
| Octopus Software | UK | Unknown | |
| Oddworld Inhabitants Inc | Oddworld Inhabitants Inc | USA | Unknown |
| Odin Computer Graphics Ltd | Paul McKenna | UK | Denied |
| Odisea Software | Spain | Unknown | |
| Odrick | Russia | Unknown | |
| Odyssee | Germany | Unknown | |
| Odyssey Computing | UK | Unknown | |
| Ofer Ben-Ami | Israel; UK | Unknown | |
| Offeyre | UK | Unknown | |
| Ofites Informatica | Spain | Unknown | |
| OKF | Czech Republic | Unknown | |
| Okoloko Engineering Software | USA | Unknown | |
| Olaf Astrand | UK | Unknown | |
| Olaf Hartwig | Germany | Unknown | |
| Olaf Marohn | Germany | Unknown | |
| Olaf Simone | Netherlands | Unknown | |
| Olav Reinert | Unknown | ||
| Old English Software | UK | Unknown | |
| Oldrich Palenicek | Czech Republic | Unknown | |
| Oldsoft | Zdenek Stary | Czech Republic | Allowed |
| Oleg Anatolyevich Komarchuk | Russia | Unknown | |
| Oleg D. Jefimenko | Oleg D. Jefimenko | USA | Allowed |
| Oleg Galimon | Russia | Unknown | |
| Oleg Krasov | Russia | Unknown | |
| Oleg Moscalenco | Russia | Unknown | |
| Oleg N. Cher | Oleg N. Cher | Ukraine | Allowed |
| Oleg Nikitin | Unknown | ||
| Oleg Origin | Oleg Origin | Russia | Allowed |
| Oleg Oursoft | Russia | Unknown | |
| Oleg Parfenov | Russia | Unknown | |
| Oleg Pritula | Russia | Unknown | |
| Oleg Romanovich | Belarus | Unknown | |
| Oleg Sergeyev | Belarus | Unknown | |
| Oleg Ziberov | Russia | Unknown | |
| Olive-Branch | Russia | Unknown | |
| Oliver Frey | Oliver Frey | Switzerland; UK | Unknown |
| Oliver Johnson | UK | Unknown | |
| Oliver Joncker | Germany | Unknown | |
| Oliver Wallner | Germany | Unknown | |
| Olivier Lepape | France | Unknown | |
| Olivier Picciotto | France | Unknown | |
| Olympic Software | UK | Unknown | |
| Omega | Czech Republic | Unknown | |
| Omega Boek | Netherlands | Unknown | |
| Omega Games | UK | Unknown | |
| Omega Hackers Group | Omega Hackers Group | Russia | Unknown |
| Omega Software [1] | UK | Unknown | |
| Omega Software [2] | UK | Unknown | |
| Omega Software [3] | Ireland | Unknown | |
| Omega Software GFX | Omega Software GFX | Czech Republic | Unknown |
| Omega Software Ltd | Online PLC | UK | Allowed |
| Omega-Soft [1] | UK | Unknown | |
| Omega-Soft [2] | Germany | Unknown | |
| Omen Software | UK | Unknown | |
| Omicron Projects | Spain | Unknown | |
| Omikron | Netherlands | Unknown | |
| Omikron Software | Unknown | ||
| Omikron Software [1] | Claus Jahn | Germany | Allowed |
| Omikron Software [2] | Omikron Software | Czech Republic | Allowed |
| OMK Software S.L. | Spain | Unknown | |
| OMNI Publications International Ltd | USA | Unknown | |
| Omni Software | UK | Unknown | |
| Omnisoft | UK | Unknown | |
| Omnitronix Ltd | UK | Unknown | |
| Omycron Software | Portugal | Unknown | |
| ON1KLE | UK | Unknown | |
| ON5KN | UK | Unknown | |
| ON6LJ Software | UK | Unknown | |
| Ondrej Mihula | Czech Republic | Unknown | |
| Ondrej Svaty | Czech Republic | Unknown | |
| One Week Productions | UK | Unknown | |
| Oni Records | UK | Unknown | |
| Online PLC | Unknown | ||
| Onspec Software | UK | Unknown | |
| OpalSoft | UK | Unknown | |
| Open University | UK | Unknown | |
| Opera Soft S.A. | Spain | Unknown | |
| Optical Brothers | Optical Brothers | Belarus | Unknown |
| Optical Illusions | UK | Unknown | |
| Optimal Group | Russia | Unknown | |
| Optimus Software | UK | Unknown | |
| Options International | UK | Unknown | |
| Opus Supplies Ltd | UK | Unknown | |
| Orange Enterprizes | UK | Unknown | |
| Orange Software | UK | Unknown | |
| Orb | UK | Unknown | |
| Orbis Publishing Ltd | UK | Unknown | |
| Organism | Russia | Unknown | |
| Origin Systems Inc | Origin Systems Inc | USA; UK | Unknown |
| Original Computers Associaton | Russia | Unknown | |
| Original Soft | Italy | Unknown | |
| Orijon Software | Germany | Unknown | |
| Orin Soft | Czech Republic | Unknown | |
| Orion [1] | Illusion Dreams | Russia | Unknown |
| Orion [2] | Poland | Unknown | |
| Orion [3] | Portugal | Unknown | |
| Orion Data Ltd | UK | Unknown | |
| Orion Pictures Corporation | MGM Inc | USA | Unknown |
| Orion Software [1] | UK | Unknown | |
| Orion Software [2] | Czech Republic | Unknown | |
| Orionsoft | Spain | Unknown | |
| Orlando Anibal Filadelfi | Argentina | Unknown | |
| Orlando Araujo | Spain | Unknown | |
| Orme Electronics | UK | Unknown | |
| Orpheus Ltd | UK | Unknown | |
| Orson | Patrick Morriss | UK | Unknown |
| Orson Wylde | UK | Unknown | |
| Ortiz Lora | Spain | Unknown | |
| Orwin Software | UK | Unknown | |
| Osborne | USA; UK | Unknown | |
| Osborne & Associates Inc | Unknown | ||
| Oscar & Spilberg | Unknown | ||
| Oscar Amat Caro | Spain | Unknown | |
| Oscar Chamorro | Spain | Unknown | |
| Oscar Domingo | Spain | Unknown | |
| Oscar G. | Spain | Unknown | |
| Oscar Gallego Sendin | Spain | Unknown | |
| Oscar Garcia Cagigas | Spain | Unknown | |
| Oscar Gomez | Spain | Unknown | |
| Oscar Mate Gonzalez | Spain | Unknown | |
| Oscar Mira Vazquez | Spain | Unknown | |
| Oscar Ortega | Spain | Unknown | |
| Oscar Soft | Spain | Unknown | |
| Oscar Systems | UK | Unknown | |
| Oscar Vives Martinez | Spain | Unknown | |
| osh Group | Russia | Unknown | |
| Oskar Merker | Germany | Unknown | |
| OSSoft | UK | Unknown | |
| Osvaldo Pinali Doederlein | Osvaldo Pinali Doederlein | Brazil | Allowed |
| Oszkar Balazs | Hungary | Unknown | |
| Otava | Finland | Unknown | |
| Otto Adametz | Czech Republic | Unknown | |
| Otto Hausbacher | Germany | Unknown | |
| Otto Maier Verlag | Unknown | ||
| Otto Stolz | Germany | Unknown | |
| Outland Corp | Moldova | Unknown | |
| Outlaw | Titus | UK | Unknown |
| Outlet | Fidcal | UK | Allowed |
| OVV Rack | Netherlands | Unknown | |
| Owen Bishop | UK | Unknown | |
| Owen Brown | UK | Unknown | |
| Owen Brunette | UK | Unknown | |
| Owen C. Heinz | UK | Unknown | |
| Owen Davies | USA | Unknown | |
| Owen Lloyd | UK | Unknown | |
| Owen Stott | UK | Unknown | |
| Owl | Russia | Unknown | |
| Oxbridge Technology Ltd | UK | Unknown | |
| Oxford Computer Publications Ltd | Unknown | ||
| Oxford Computer Publishing | Oxford Computer Publications Ltd | UK | Unknown |
| Oxford Computer Systems | UK | Unknown | |
| Oxford Digital Enterprises | Empire Interactive | UK | Unknown |
| Oxford Mobius | UK | Unknown | |
| Oxford Software Group | UK | Unknown | |
| Oxford Technologies | UK | Unknown | |
| Oxford University Press | UK | Unknown | |
| Oxygen Software | UK | Unknown | |
| Oz Software | UK | Unknown | |
| OZ1BII | Henning Andresen | Denmark | Allowed |
| Ozturk Aker | UK | Unknown |
