O

Name Country City
1 O-SetRussiaGatchina
2 O.C.AsimbolsRussiaChaykovskiy
3 O.E. LtdUnited Kingdom
4 O.I.C. LtdUnited Kingdom
5 O.Sheen SoftwareUnited Kingdom
6 O2-S softRussiaSaratov
7 Oasis SoftwareUnited Kingdom
8 Oberon GroupUkraineOdesa
9 Ocean Software LtdAtari IncUnited Kingdom
10 Ocean-Imagine HellasGreece
11 OCTA SoftHungary
12 Octopus SoftwareUnited Kingdom
13 odessamic
14 Odin Computer Graphics LtdUnited Kingdom
15 Odisea SoftwareSpain
16 Odyssey ComputingUnited Kingdom
17 OffenceNorway
18 Ofites InformaticaSpain
19 OI3Spain
20 Okoloko Engineering SoftwareUnited States
21 Oktogonia
22 Old English SoftwareUnited Kingdom
23 Old FriendsRussiaOryol
24 Oldrich PalenicekCzech Republic
25 OldsoftCzech Republic
26 Oleg OursoftRussia
27 OLSoft CompanyRussiaUfa
28 Olympic SoftwareUnited Kingdom
29 Omega GamesUnited Kingdom
30 Omega GroupRussiaSt.Petersburg
31 Omega Hackers ClubRussiaChelyabinsk
32 Omega Hackers GroupRussiaRostov-on-Don
33 Omega Ltd
34 Omega SoftwareIreland
35 Omega SoftwareUnited Kingdom
36 Omega SoftwareCambridge Research
37 Omega Software GFXCzech Republic
38 Omega Software Ltd
39 Omega-SoftGermany
40 Omega-SoftUnited Kingdom
41 Omen Group
42 Omen SoftwareWordlight Ltd
43 Omicron ProjectsSpain
44 Omikron SoftwareCzech Republic
45 Omikron SoftwareGermany
46 OMK Software S.L.Spain
47 Omni SoftwareUnited Kingdom
48 OmnisoftUnited Kingdom
49 Omycron SoftwarePortugal
50 ON6LJ SoftwareUnited Kingdom
51 One Week ProductionsUnited Kingdom
52 Oni RecordsUnited Kingdom
53 Online PLCUnited Kingdom
54 ONOsoftCzech Republic
55 Onspec SoftwareUnited Kingdom
56 OOPSRussiaOdintsovo
57 OpalSoftUnited Kingdom
58 Opera Soft S.A.Spain
59 Optical BrothersBelarusMinsk
60 Optical IllusionsUnited Kingdom
61 Optimal GroupRussia
62 Optimus SoftwareUnited Kingdom
63 Options InternationalUnited Kingdom
64 Orange EnterprizesUnited Kingdom
65 Orange SoftwareUnited Kingdom
66 Orbis Publishing LtdUnited Kingdom
67 Orbit DataUnited Kingdom
68 Origin Systems IncUnited States
69 Original Computers AssociationsimbolsRussiaChaykovskiy
70 Original SoftItaly
71 Orijon SoftwareGermany
72 Orin SoftCzech Republic
73 OrionPortugal
74 OrionPoland
75 OrionRussiaKrasnouralsk
76 Orion Data LtdUnited Kingdom
77 ORION GroupUkraineDonetsk
78 Orion GroupRussiaChelyabinsk
79 Orion OstravaCzech Republic
80 Orion SoftwareCzech Republic
81 Orion SoftwareUnited Kingdom
82 Orion Software GroupIllusion DreamsRussiaYoshkar-Ola
83 Orion Software GroupRussiaAndreapol
84 OrionsoftSpain
85 Orpheus LtdUnited Kingdom
86 Orwin SoftwareUnited Kingdom
87 Oscar & Spilberg
88 Oscar SoftSpain
89 Oscar SystemsUnited Kingdom
90 osh GroupRussia
91 OSM Co LtdBelarusMinsk
92 OSSoftUnited Kingdom
93 OtaSoftCzech Republic
94 Outland CorporationMoldovaChișinău
95 OutlawPalace Video GroupUnited Kingdom
96 OutletUnited Kingdom
97 Outsiders
98 Overfile SoftwareRussiaKirov
99 OverPower SoftRussiaSarapul
100 Oversun FriendshipRussiaSeverodvinsk
101 ovich
102 Oxbridge Technology LtdUnited Kingdom
103 Oxford Computer Publications LtdUnited Kingdom
104 Oxford Computer PublishingOxford Computer Publications LtdUnited Kingdom
105 Oxford Computer SystemsUnited Kingdom
106 Oxford Digital EnterprisesEmpire Interactive
107 Oxford MobiusNigel LeaUnited Kingdom
108 Oxford Software GroupUnited Kingdom
109 Oxford TechnologiesUnited Kingdom
110 Oxygen SoftwareUnited Kingdom
111 Oz SoftwareUnited Kingdom
112 Ozero LtdRussiaNovosibirsk
113 Ozzyos SoftwareCzech Republic
114 Орион