| 36416983: | 1 st Slovak Internet Society, s.r.o. |
| 35899212: | 10tacle studios slovakia s.r.o. |
| 36346268: | 123 group SK s.r.o. |
| 36607827: | 2 PACK Media s.r.o. |
| 35812010: | 2 Ring, spol. s r.o. |
| 35966408: | 21.Century Group, s.r.o. |
| 35918161: | 24 NET, s.r.o. |
| 36603601: | 2BCognitus s.r.o. |
| 36482200: | 2EM, s.r.o. |
| 36588121: | 2MK s.r.o. |
| 36815977: | 2stan s.r.o. |
| 31384188: | 3 D CON, s.r.o. |
| 36694720: | 3 Fi, spol. s r.o. |
| 36610500: | 321 Software Development, s.r.o. |
| 31593119: | 3C s.r.o. |
| 35979119: | 3CKY, s.r.o. |
| 36209791: | 3D People, s.r.o. |
| 36605646: | 3DIVISION s.r.o. |
| 36825093: | 3DNET, s.r.o. |
| 36671991: | 3glav, s.r.o. |