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