| R3 Solutions GmbH | |
| R3DT GmbH | Baden-Württemberg |
| r7media | |
| Ra & Ge Fernsehreparaturdienst GmbH | North Rhine-Westphalia |
| RA Net Solutions GmbH | |
| RA-MICRO Software AG | Berlin |
| Rabbit eMarketing GmbH | Hesse |
| Rabbit-Dezign | Hesse |
| rabbitAI GmbH | |
| Rabot Charge GmbH | |
| Rachfahl IT Solutions GmbH & Co. KG | North Rhine-Westphalia |
| Rackow-Software GmbH | Hamburg |
| Racksnet GmbH | |
| Rademacher Geräte-Elektronik GmbH & Co. KG | Lower Saxony |
| Radiance VR UG (haftungsbeschränkt) | Berlin |
| Radiodata GmbH | Berlin |
| Radios AG | |
| Radunet | Brandenburg |
| Raeder+Vogel GmbH | Bavaria |
| RAFI GmbH & Co. KG | Baden-Württemberg |
| RAG Aktiengesellschaft | |
| RAG-Stiftung | |
| RagTime.de Development GmbH | Lower Saxony |
| RAIBLE & GRÄßLE GmbH | Baden-Württemberg |
| Raiffeisen NetWorld GmbH | |
| Rail-Flow GmbH | |
| Rainer Schneider Kabelsatzbau und Konfektion GmbH & Co. KG | Rhineland-Palatinate |
| Raisin GmbH | |
| Raith GmbH | |
| Rakna Enterprise | Thuringia |
| Ralph Lehmann | Saxony |
| Ralph Segert | North Rhine-Westphalia |
| Ralph Siebert e.K. | Hesse |
| Ramgraber GmbH | |
| Ramraver Interactive AG | |
| Randevu GmbH | |
| Rangee GmbH | North Rhine-Westphalia |
| rankeffect digital GmbH | |
| rankingCoach | |
| Raphael Frasch GmbH | Bavaria |
| Raphael GmbH | North Rhine-Westphalia |
| RapidCompact | |
| RapidPipeline | |
| Rappid | North Rhine-Westphalia |
| RARLAB | |
| Rascasse GmbH | Berlin |
| Rasch IT-Solutions | Bavaria |
| Rasche Software | Berlin |
| raschell | Bavaria |
| Rasenreich GmbH | |