| Gamma Sp. z o.o. | Masovian |
| Gate-Software Sp. z o.o. | |
| GB Soft | Silesian |
| GD.PL Sp. z o.o. | Pomeranian |
| Gdański Park Naukowo-Technologiczny | |
| Gdański Uniwersytet Medyczny | |
| Gdyński Inkubator Przedsiębiorczości | |
| Gdyńskie Centrum Wspierania Przedsiębiorczości | |
| Gecko Dynamics Sp. z o.o. | |
| GECKO-LAB Sp. z o.o. | |
| Gecode Sp. z o.o. | |
| GeekForce Sp. z o.o. | |
| Geeknauts | |
| GeekWork Sp. z o.o. | Kuyavian-Pomeranian |
| Gemini Design | |
| Gemius S.A. | Masovian |
| GemsNet | Kuyavian-Pomeranian |
| Generacja | Lower Silesian |
| Genius Software | |
| Genli | Greater Poland |
| Genloxa Sp. z o.o. | |
| Genomtec S.A. | |
| Geo Renewables | |
| Geovigo | |
| GES IT | |
| Get **IT Done | |
| Get Software Done Sp. z o.o. | |
| GetDressed Sp. z o.o. | |
| GETit Group Sp. z o.o. | |
| GetResponse | Pomeranian |
| Getso.pl | |
| GEWANET | Masovian |
| ggmedia.pl | Lesser Poland |
| Gi Group Poland S.A. | |
| GIGA internet | Lesser Poland |
| GiP Sp. z o.o. | Masovian |
| Giraffe Studio | |
| Girls Code Fun | |
| GISonLine | |
| GISS Sp. z o.o. | |
| Giza Polish Ventures | Masovian |
| Gladius Agency | |
| Global Social Technology | |
| Globema Sp. z o.o. | |
| Globit ISP | Świętokrzyskie |
| GlobKurier.pl | |
| Glowit | |
| GlucoActive Ltd | |
| GM System | |
| GMI Software | |