| REFRATHERMICA 2360457 · design | an individual | 1 Chemicals17 Rubber19 Building+2 | Pending | 2024 |
| REFRATECH 0762992 · TMA455034 | Refratechnik Holding GmbH | 19 Building | Registered | 1996 |
| ReferToHer 1950297 · TMA1194140 | Lenczner Slaght Royce Smith Griffin LLP | 35 Advertising45 Legal | Registered | 2023 |
| REFRATECHNIK 0368194 · TMA200534 | Refratechnik Holding GmbH | 19 Building | Registered | 1974 |
| REEBARTEIN 2202243 · TMA1239824 · design | Henan Yaobo Home Technology Co., Ltd. | 11 Lighting | Registered | 2024 |
| RYBIRTRA 2157545 · TMA1263973 | ALEXION PHARMACEUTICALS, INC. | 5 Pharmaceuticals | Registered | 2024 |
| REPORTR 2153629 · TMA1207603 · design | Constructr Limited | 9 Electronics | Registered | 2023 |
| REBIRD 2146582 · TMA1226913 | Amer Sports Canada Inc. | 25 Clothing35 Advertising | Registered | 2024 |
| RÉPARETECH 2125394 · TMA1184273 · design | RépareTech inc. | 37 Construction | Registered | 2023 |
| RépareTech 2125182 · TMA1188551 | RépareTech inc. | 37 Construction | Registered | 2023 |
| REPROTEX 2108272 · TMA1221191 · design | ReProTex GmbH | 11 Lighting40 Treatment | Registered | 2024 |
| Riopurt 2083065 · TMA1167056 | an individual | 25 Clothing | Registered | 2023 |
| REPORTER 2041571 · TMA1240839 · design | an individual | 3 Cosmetics | Registered | 2024 |
| REPRTOIR 2028085 · TMA1223512 | an individual | 9 Electronics42 Science | Registered | 2024 |
| ReportsNow 2024052 · TMA1150330 | ReportsNow, Inc. | 9 Electronics | Registered | 2022 |
| RUBBERDUCK 2023535 · TMA1224137 · design | 9513-4086 QUÉBEC INC. | 9 Electronics42 Science45 Legal | Registered | 2024 |
| ReportBack 2016395 · TMA1262434 | ReportBack Analytics Limited | 35 Advertising | Registered | 2024 |
| RIVERTV 1993271 · TMA1279878 | VMEDIA INC. | 9 Electronics | Registered | 2025 |
| RAEFORD 1950394 · TMA1124025 | Liberty Hardware Mfg. Corp. | 6 Metal20 Furniture21 Housewares | Registered | 2022 |
| RIVERHEAD 1934454 · TMA1117211 | Penguin Random House LLC | 16 Paper | Registered | 2022 |
| Riverdale 1928349 · TMA1113436 | an individual | 38 Telecommunications43 Restaurants | Registered | 2021 |
| REPRODUX 1904881 · TMA1108579 · design | Reprodux Limited | 16 Paper19 Building24 Textiles+5 | Registered | 2021 |
| REPRODUX 1904780 · TMA1112326 | Reprodux Limited | 16 Paper19 Building24 Textiles+5 | Registered | 2021 |
| Roverdale 1888703 · TMA1078391 | an individual | 43 Restaurants | Registered | 2020 |
| ROBERT 1871327 · TMA1048686 · design | Owner not shown | 29 Meat | Registered | 2019 |