| Name | Country | City | Rating | |
|---|---|---|---|---|
| Thorn EMI (USA) | United States | 0.00 ±0.0 | ||
| Three Rivers Software | 0.00 ±0.0 | |||
| Thunder Mountain | 0.00 ±0.0 | |||
| Tiara Software | 0.00 ±0.0 | |||
| Tiger Developments | 0.00 ±0.0 | |||
| Tiger Soft | 0.00 ±0.0 | |||
| Tigervision | 0.00 ±0.0 | |||
| Tilt | 0.00 ±0.0 | |||
| Tiny Tek, Inc. | 0.00 ±0.0 | |||
| Titan Programs | 0.00 ±0.0 | |||
| TJS Industries | 0.00 ±0.0 | |||
| TK Computer Products | 0.00 ±0.0 | |||
| Tom-Soft | 0.00 ±0.0 | |||
| Top Ten Hits | 0.00 ±0.0 | |||
| Top-Magazin | 0.00 ±0.0 | |||
| Toronto Atari Programmers' Society | 0.00 ±0.0 | |||
| Total Control Systems | 0.00 ±0.0 | |||
| Tozemsoft | 0.00 ±0.0 | |||
| Tridata Corporation | 0.00 ±0.0 | |||
| Trillium Software | 0.00 ±0.0 |
