| Jakub T. Jankiewicz | |
| #OMGKRK | Lesser Poland |
| 021 Wallet Sp. z o.o. | |
| 052b | |
| 1 bit studios S.A. | Masovian |
| 1000 realities | Lesser Poland |
| 1000 realities Sp. z o.o. | |
| 1000.software | |
| 1000i | |
| 100Stron.net | West Pomeranian |
| 100v.pl | Greater Poland |
| 10A | |
| 10Clouds Sp. z o.o. | Masovian |
| 10Q Grupa Interaktywna | West Pomeranian |
| 11Sigma Sp. z o.o. | Greater Poland |
| 1koszyk.pl | |
| 1xTEAM Sp. z o.o. | Masovian |
| 2+2 Komputeryzacja Przedsiębiorstw S.C. | Lower Silesian |
| 2040 | Lesser Poland |
| 21CN Radosław Smilgin | |
| 21infinity Sp. z o.o. | Opole |
| 247studio | |
| 26bitz | |
| 2Bit Sp. z o.o. | |
| 2BSOFT | Silesian |
| 2code | |
| 2cW.pl | |
| 2fm.pl | Masovian |
| 2KMM Sp. z o.o. | |
| 2M System | Lesser Poland |
| 2MD | |
| 2N | |
| 2Qbs | |
| 2Simple Sp. z o.o. | |
| 3 Giga S.C. | Podlaskie |
| 300.codes Sp. z o.o. | Masovian |
| 300Brains | |
| 300Devs Sp. z o.o. | |
| 360px Sp. z.o.o. | |
| 3CK Studio | |
| 3D Motion Controls Sp. z o.o. | Masovian |
| 3D Studio Production Daniel Miara | Greater Poland |
| 3Dev Sp. z o.o. | |
| 3e Software House | |
| 3mdeb | |
| 3motion Interactive | |
| 3net Sp. z o.o. | Pomeranian |
| 3R Games S.A. | |
| 3Soft S.A. | Silesian |
| 3Step Sp. z o.o. | |