| R&D Test Systems | 8382 | Hinnerup |
| R-24 | 5220 | Odense SØ |
| Rala Stål ApS | 9560 | Hadsund |
| Randers Gears A/S | 8960 | Randers SØ |
| Randers Maskinfabrik A/S | 8930 | Randers NØ |
| Randers Rørindustri Aps | 8960 | Randers SØ |
| Rantec ApS | 5700 | Svendborg |
| Ravendo A/S | 8800 | Viborg |
| RD-Support ApS | 2760 | Måløv |
| REA automatdrejning ApS | 5450 | Otterup |
| REBOOT | 5220 | Odense SØ |
| Reecon A/S | 7100 | Vejle |
| Regal A/S | 4000 | Roskilde |
| Reguvent ApS | 8660 | Skanderborg |
| Rema Tip Top Danmark A/S | 6000 | Kolding |
| RENO A/S | 8250 | Egå |
| Renold Nordic | 4100 | Ringsted |
| Reo-Pack A/S | 9550 | Mariager |
| RepComp ApS | 2800 | Kongens Lyngby |
| Reservedelsfabrikken A/S | 9320 | Hjallerup |
| Resinex Danmark A/S | 3500 | Værløse |
| RG ROM GUMMI | 7620 | Lemvig |
| RIAS A/S | 4000 | Roskilde |
| Rinco Ultrasonics Danmark A/S | 3100 | Hornbæk |
| Risager A/S | 8464 | Galten |
| Ritek A/S | 8560 | Kolind |
| RIVAL A/S | 8660 | Skanderborg |
| RM Fintech ApS | 4840 | Nørre Alslev |
| RMIG A/S | 2750 | Ballerup |
| Robert Petersen Værktøjsmaskiner A/S | 3520 | Farum |
| Robma ApS | 8300 | Odder |
| Roboman-pta ApS | 8700 | Horsens |
| ROBOTECH A/S | 3460 | Birkerød |
| RoboTool A/S | 6600 | Vejen |
| Röchling Industrial Allingaabro/meta plast | 8961 | Allingåbro |
| Rolf Schmidt Industriplast A/S | 6000 | Kolding |
| Rolltechnic Transportkomponenter A/S | 3490 | Kvistgård |
| Rota-Dan A/S | 9220 | Aalborg Ø |
| Rotec Production ApS | 3520 | Farum |
| Roykon A/S | 7000 | Fredericia |
| RUSTEK A/S | 7800 | Skive |