| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| T & F Software | 0.00 ±0.0 | ||||
| T-Soft | 0.00 ±0.0 | ||||
| T. Smith Software | 0.00 ±0.0 | ||||
| T.F.T.E. | 0.00 ±0.0 | ||||
| T.P.C.M. | 0.00 ±0.0 | ||||
| T.U.B. | 0.00 ±0.0 | ||||
| TAB Books, Inc. | 0.00 ±0.0 | ||||
| Tactical Design Group | 0.00 ±0.0 | ||||
| Tandon Corporation | United States | Los Angeles | 0.00 ±0.0 | ||
| Taqóard | 0.00 ±0.0 | ||||
| Taquart | Germany, Poland | , Bialystok (Białystok), Gdansk (Gdańsk), Kopytkowo, Lublin, Radom, Sanok, Swidnik (Świdnik), Torun (Toruń), Zawiercie | 0.00 ±0.0 | ||
| Task | 0.00 ±0.0 | ||||
| TAT | 0.00 ±0.0 | ||||
| Tatrasoft | Poland | Zakopane | 0.00 ±0.0 | ||
| Taurus Software | 0.00 ±0.0 | ||||
| TBR Software | 0.00 ±0.0 | ||||
| TCE Programs, Inc. | 0.00 ±0.0 | ||||
| TEAC Corporation | Japan | Musashino | 0.00 ±0.0 | ||
| Teacher Support Software | 0.00 ±0.0 | ||||
| Teaching and Computers | 0.00 ±0.0 |
