O

Name Country City
1 O.E. Ltd United Kingdom
2 O.I.C. Ltd United Kingdom
3 O.Sheen Software United Kingdom
4 Oasis Software United Kingdom
5 Oberon Group Ukraine Odessa
6 Ocean Software Ltd United Kingdom Ocean Software Ltd speccyWiki
7 Ocean Software Ltd Atari Inc
8 Ocean-Imagine Hellas Greece
9 OCTA Soft Hungary
10 Octopus Software United Kingdom
11 Odin Computer Graphics Ltd Paul McKenna
12 Odisea Software Spain
13 Odyssey Computing United Kingdom
14 Ofites Informatica Spain
15 Okoloko Engineering Software S. Okoloku
16 Old English Software R. Bingle
17 Oldrich Palenicek Czech Republic
18 Oldsoft Zdenek Stary
19 Oleg N. Cher Ukraine
20 Oleg Oursoft Russia
21 Olympic Software United Kingdom
22 Omega Games United Kingdom
23 Omega Group Russia St.Petersburg
24 Omega Hackers Club Russia Chelyabinsk Omega Hackers Club speccyWiki
25 Omega Hackers Group Russia Rostov-on-Don Omega Hackers Group speccyWiki
26 Omega Software [1] Cambridge Research
27 Omega Software [2] United Kingdom
28 Omega Software [3] Ireland
29 Omega Software GFX Jan Palenicek
30 Omega Software Ltd Alpha-Omega Software
31 Omega-Soft [1] United Kingdom
32 Omega-Soft [2] Germany
33 Omen Software Wordlight Ltd
34 Omicron Projects Spain
35 Omikron Software [1] Claus Jahn
36 Omikron Software [2] Czech Republic
37 OMK Software S.L. Spain
38 Omni Software United Kingdom
39 Omnisoft United Kingdom
40 Omycron Software Portugal
41 ON6LJ Software United Kingdom
42 One Week Productions United Kingdom
43 Oni Records United Kingdom
44 Online PLC
45 Onspec Software United Kingdom
46 OOPS Russia Odintsovo
47 OpalSoft United Kingdom
48 Opera Soft S.A. Spain
49 Optical Brothers Belarus Minsk
50 Optical Illusions United Kingdom
51 Optimal Group Russia
52 Optimus Software United Kingdom
53 Options International United Kingdom
54 Orange Enterprizes United Kingdom
55 Orange Software United Kingdom
56 Orbis Publishing Ltd United Kingdom
57 Origin Systems Inc United States
58 Original Computer Association Russia
59 Original Computers Associaton Russia
60 Original Soft Italy
61 Orijon Software Germany
62 Orin Soft Czech Republic
63 Orion [1] Illusion Dreams
64 Orion [2] Poland
65 Orion [3] Portugal
66 Orion Data Ltd United Kingdom
67 Orion Software [1] United Kingdom
68 Orion Software [2] Slovakia
69 Orionsoft Spain
70 Orpheus Ltd United Kingdom
71 Orwin Software Michael Orwin
72 Oscar & Spilberg
73 Oscar Soft Spain
74 Oscar Systems United Kingdom
75 osh Group Russia
76 OSSoft United Kingdom
77 Outland Corp Moldavia Chişinău
78 Outlaw Palace Video Group
79 Outlet Chezron Software
80 Outsiders
81 Oversun Frendship Russia Severodvinsk
82 Oxbridge Technology Ltd United Kingdom
83 Oxford Computer Publications Ltd
84 Oxford Computer Publishing Oxford Computer Publications Ltd
85 Oxford Computer Systems United Kingdom
86 Oxford Digital Enterprises Empire Interactive
87 Oxford Mobius Nigel Lea
88 Oxford Software Group United Kingdom
89 Oxford Technologies United Kingdom
90 Oxygen Software United Kingdom
91 Oz Software United Kingdom