| REDEMAN 1993713 · design | Spicers Canada ULC | – | Pending | 2019 |
| RADMAN 2141923 · TMA1254777 | Narda Safety Test Solutions GmbH | 9 Electronics | Registered | 2024 |
| RDTMINC 1945689 · TMA1099799 | Real Deal Transaction Management Inc. | 9 Electronics42 Science | Registered | 2021 |
| READYMAN 1843234 · TMA1048987 · design | 4174691 Canada Inc. (Mega International Inc.) | 7 Machines9 Electronics11 Lighting | Registered | 2019 |
| REDMOND 1625124 · TMA937767 | Owner not shown | 11 Lighting | Registered | 2016 |
| REDMOND 1620686 · TMA881060 | Redmond, Incorporated | 1 Chemicals30 Coffee31 Fresh | Registered | 2014 |
| REDMONT 1615308 · TMA904360 | an individual | 6 Metal22 Ropes37 Construction+1 | Registered | 2015 |
| REITMANS 1571461 · TMA882159 · design | REITMANS (CANADA) LIMITED/REITMANS (CANADA) LIMITEE | 3 Cosmetics6 Metal9 Electronics+11 | Registered | 2014 |
| REDIMUNE 1291536 · TMA688139 | an individual | 5 Pharmaceuticals | Registered | 2007 |
| REITMANS 0891098 · TMA517317 · design | REITMANS (CANADA) LIMITED | 3 Cosmetics14 Jewellery16 Paper+7 | Registered | 1999 |
| REDMOND 0510698 · TMA304870 · design | The Procter & Gamble Company | 3 Cosmetics | Registered | 1985 |
| REDMONT 0467383 · TMA263875 | Ansell Limited | 6 Metal9 Electronics14 Jewellery+4 | Registered | 1981 |
| REITMANS 0464541 · TMA306693 · design | REITMANS (CANADA) LIMITED/REITMANS (CANADA) LIMITEE | 36 Finance | Registered | 1985 |
| REITMANS 0464540 · TMA306692 | REITMANS (CANADA) LIMITED/REITMANS (CANADA) LIMITEE | 36 Finance | Registered | 1985 |
| REITMANS 0463002 · TMA289954 | REITMANS (CANADA) LIMITED/REITMANS (CANADA) LIMITEE | 14 Jewellery18 Leather20 Furniture+3 | Registered | 1984 |
| REDMOND 2278476 | Owner not listed | 5 Pharmaceuticals | Pending | 2023 |
| REDMOND 2278475 | Owner not listed | 3 Cosmetics | Pending | 2023 |
| REDMOND 2098614 | Shenzhen Redmond Global Technology Limited | 7 Machines8 Hand10 Medical | Pending | 2021 |
| REDMEN 0903938 · design | McGILL UNIVERSITY | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1989 |
| RADMINI 2040421 · TMA1276978 | Rad Power Bikes Inc. | 9 Electronics12 Vehicles | Registered | 2024 |
| REITWOMAN 2019024 · TMA1160969 | REITMANS (CANADA) LIMITED/REITMANS (CANADA) LIMITEE | 25 Clothing35 Advertising | Registered | 2023 |
| RUDIMENTERRE 1962339 · TMA1187935 | an individual | 21 Housewares41 Education42 Science | Registered | 2023 |
| ROTHMANS 1794960 · TMA997568 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2018 |
| ROTHMANS 1794959 · TMA997567 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2018 |
| ROADMUNK 1713861 · TMA989026 | Roadmunk Inc. | 9 Electronics42 Science | Registered | 2018 |