O

Name Country City
1 O.C.AsimbolsRussiaChaykovskiy
2 O.E. LtdUnited Kingdom
3 O.I.C. LtdUnited Kingdom
4 O.Sheen SoftwareUnited Kingdom
5 Oasis SoftwareUnited Kingdom
6 Oberon GroupUkraineOdessa
7 Ocean Software LtdAtari IncUnited Kingdom
8 Ocean-Imagine HellasGreece
9 OCTA SoftHungary
10 Octopus SoftwareUnited Kingdom
11 odessamic
12 Odin
13 Odin Computer Graphics LtdUnited Kingdom
14 Odisea SoftwareSpain
15 Odyssey ComputingUnited Kingdom
16 Ofites InformaticaSpain
17 Okoloko Engineering Software
18 Old English Software
19 Oldrich PalenicekCzech Republic
20 OldsoftCzech Republic
21 Oleg OursoftRussia
22 OLSoft CompanyRussiaUfa
23 Olympic SoftwareUnited Kingdom
24 OmegaCzech Republic
25 Omega GamesUnited Kingdom
26 Omega GroupRussiaSt.Petersburg
27 Omega Hackers ClubRussiaChelyabinsk
28 Omega Hackers GroupRussiaRostov-on-Don
29 Omega Ltd
30 Omega Software United Kingdom
31 Omega Software Cambridge Research
32 Omega Software Ireland
33 Omega Software GFX
34 Omega Software Ltd
35 Omega-Soft Germany
36 Omega-Soft United Kingdom
37 Omen Group
38 Omen SoftwareWordlight Ltd
39 Omicron ProjectsSpain
40 Omikron Software Czech Republic
41 Omikron Software Germany
42 OMK Software S.L.Spain
43 Omni SoftwareUnited Kingdom
44 OmnisoftUnited Kingdom
45 Omycron SoftwarePortugal
46 ON6LJ SoftwareUnited Kingdom
47 One Week ProductionsUnited Kingdom
48 Oni RecordsUnited Kingdom
49 Online PLCUnited Kingdom
50 ONOsoftCzech Republic
51 Onspec SoftwareUnited Kingdom
52 OOPSRussiaOdintsovo
53 OpalSoftUnited Kingdom
54 Opera Soft S.A.Spain
55 Optical BrothersBelarusMinsk
56 Optical IllusionsUnited Kingdom
57 Optimal GroupRussia
58 Optimus SoftwareUnited Kingdom
59 Options InternationalUnited Kingdom
60 Orange EnterprizesUnited Kingdom
61 Orange SoftwareUnited Kingdom
62 Orbis Publishing LtdUnited Kingdom
63 Origin Systems IncUnited States
64 Original Computers AssociationsimbolsRussiaChaykovskiy
65 Original SoftItaly
66 Orijon SoftwareGermany
67 Orin SoftCzech Republic
68 OrionRussiaKrasnouralsk
69 Orion Portugal
70 Orion Poland
71 Orion Data LtdUnited Kingdom
72 Orion GroupUkraineDonetsk
73 Orion GroupRussiaChelyabinsk
74 Orion OstravaCzech Republic
75 ORION SOFTWARERussiaPerm
76 Orion Software Czech Republic
77 Orion Software United Kingdom
78 Orion Software GroupIllusion DreamsRussiaYoshkar-Ola
79 Orion Software GroupRussiaAndreapol
80 OrionsoftSpain
81 Orpheus LtdUnited Kingdom
82 Orwin Software
83 Oscar & Spilberg
84 Oscar SoftSpain
85 Oscar SystemsUnited Kingdom
86 osh GroupRussia
87 OSM Co LtdBelarusMinsk
88 OSSoftUnited Kingdom
89 OtaSoftCzech Republic
90 Outland CorporationMoldovaChișinău
91 OutlawPalace Video GroupUnited Kingdom
92 OutletUnited Kingdom
93 Outsiders
94 Overfile SoftwareRussiaKirov
95 OverPower SoftRussiaSarapul
96 Oversun FrendshipRussiaSeverodvinsk
97 Oxbridge Technology LtdUnited Kingdom
98 Oxford Computer Publications LtdUnited Kingdom
99 Oxford Computer PublishingOxford Computer Publications LtdUnited Kingdom
100 Oxford Computer SystemsUnited Kingdom
101 Oxford Digital EnterprisesEmpire Interactive
102 Oxford MobiusNigel LeaUnited Kingdom
103 Oxford Software GroupUnited Kingdom
104 Oxford TechnologiesUnited Kingdom
105 Oxygen SoftwareUnited Kingdom
106 Oz SoftwareUnited Kingdom
107 Ozero LtdRussiaNovosibirsk
108 Ozzyos SoftwareCzech Republic
109 Орион