| REMATECH 0441534 · TMA243498 | VIACORE SOLUTIONS INC. | 7 Machines | Registered | 1980 |
| REMITCH 1578485 · TMA867240 · design | TORAY KABUSHIKI KAISHA, ALSO TRADING AS TORAY INDUSTRIES, INC. | 5 Pharmaceuticals | Registered | 2013 |
| ROOMMATCH 1516941 · TMA818837 | TRANSOM POST OPCO, LLC | 9 Electronics | Registered | 2012 |
| RENMATIX 1545927 · TMA884876 | Renmatix, Inc. | 1 Chemicals4 Oils | Registered | 2014 |
| RENOTECH 0728722 · TMA466773 · design | CAFUVI INC. | 16 Paper17 Rubber18 Leather+1 | Registered | 1996 |
| RenataX 2199768 · TMA1237613 | an individual | 8 Hand | Registered | 2024 |
| ROMTECH 2168794 · TMA1212476 | ROM Technologies, Inc. | 10 Medical28 Toys | Registered | 2023 |
| RENTECH 1913350 · TMA1110403 · design | Rentech Boiler Systems, Inc. | 11 Lighting37 Construction40 Treatment+1 | Registered | 2021 |
| RENTECH 1912770 · TMA1115806 | Rentech Boiler Systems, Inc. | 11 Lighting37 Construction40 Treatment+1 | Registered | 2021 |
| ROMATIC 1379314 · TMA743327 | Autokontrol Limited | 9 Electronics | Registered | 2009 |
| REMTEC 0646412 · TMA386809 · design | REMTEC INC. | 12 Vehicles37 Construction | Registered | 1991 |
| ROMATIC 2268119 | Munchkin, Inc. | 3 Cosmetics21 Housewares | Pending | 2023 |
| REMOTECON 2276712 | Remotecon Limited | 9 Electronics | Pending | 2023 |
| REYNATIS 2259966 · TMA1277942 | FURYU CORPORATION | 9 Electronics | Registered | 2024 |
| Reniteco 2246373 · TMA1264508 | NANJING HIP HOP DOG INTERNATIONAL TRADE CO. LTD | 21 Housewares | Registered | 2024 |
| RINOTEC 2225415 · TMA1241911 | PRO FARM GROUP, INC. | 5 Pharmaceuticals | Registered | 2024 |
| RuenTech 2218066 · TMA1246782 | an individual | 14 Jewellery | Registered | 2024 |
| RENDEZVOUS 2210327 · TMA1282870 | A-L Outdoors, LLC | 5 Pharmaceuticals28 Toys | Registered | 2025 |
| RENTDESK 2199707 · TMA1241243 | Cityscape Real Estate Ltd | 35 Advertising36 Finance42 Science | Registered | 2024 |
| ROMITAKE 2080619 · TMA1165969 | an individual | 9 Electronics | Registered | 2023 |
| RUNTZ 2067805 · TMA1148143 · design | 3615 Market, LLC | 35 Advertising | Registered | 2022 |
| RENDESVOUZ 2067660 · TMA1180081 · design | Calgary Seton Hotel Investment LP | 43 Restaurants | Registered | 2023 |
| ROOMETTES 2058407 · TMA1155200 · design | an individual | 28 Toys | Registered | 2022 |
| ROMITAZ 2058263 · TMA1169852 | an individual | 9 Electronics | Registered | 2023 |
| Randoseru 2049087 · TMA1283903 | HARIZURY CO. LTD | 18 Leather22 Ropes | Registered | 2025 |