| Groups (developers) | Abbr. | Country | City | Rating | |
|---|---|---|---|---|---|
| R.G. Wilson | 0.00 ±0.0 | ||||
| Radarsoft | 0.00 ±0.0 | ||||
| Rafaell Soft | 0.00 ±0.0 | ||||
| Raindorf Soft | 0.00 ±0.0 | ||||
| Rand McNally | 0.00 ±0.0 | ||||
| Random House, Inc. | 0.00 ±0.0 | ||||
| RascalSoft | 0.00 ±0.0 | ||||
| Rasero Team | 0.00 ±0.0 | ||||
| Rassilon Software | 0.00 ±0.0 | ||||
| Raster Software | 0.00 ±0.0 | ||||
| Raymon Aldridge Design | 0.00 ±0.0 | ||||
| Raymott Soft | 0.00 ±0.0 | ||||
| Red Rat Software Ltd. | 0.00 ±0.0 | ||||
| Regionalgruppe Nord | Germany | 0.00 ±0.0 | |||
| Relag | 0.00 ±0.0 | ||||
| REMiX Soft Ltd. | Poland | 0.00 ±0.0 | |||
| Resource Software International | 0.00 ±0.0 | ||||
| Reston Publishing Company, Inc. | 0.00 ±0.0 | ||||
| Resurrection | Poland | 0.00 ±0.0 | |||
| Retobor | 0.00 ±0.0 |
