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