O

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