| RUTHINIUM 1055554 · TMA583176 | an individual | 10 Medical | Registered | 2003 |
| RADMAN 2141923 · TMA1254777 | Narda Safety Test Solutions GmbH | 9 Electronics | Registered | 2024 |
| 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 |
| 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 |
| 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 |
| READYMOUNT 1686492 · TMA911481 | Ride Control, LLC | 12 Vehicles | Registered | 2015 |
| 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 |
| RHODIAMINE 1541974 · TMA923982 | Owner not shown | 1 Chemicals | Registered | 2015 |
| ROTHMANS 1477031 · TMA790798 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2011 |
| ROTHMANS 1477030 · TMA790799 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2011 |
| ROTHMANS 1477029 · TMA790797 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2011 |
| ROTHMANS 1460756 · TMA778824 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2010 |
| ROTHMANS 1460755 · TMA778510 · design | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 2010 |
| RedMoon 1385614 · TMA748312 | an individual | 5 Pharmaceuticals18 Leather20 Furniture+2 | Registered | 2009 |
| RADMIN 1385374 · TMA751467 | an individual | 9 Electronics38 Telecommunications42 Science | Registered | 2009 |
| REDIMUNE 1291536 · TMA688139 | an individual | 5 Pharmaceuticals | Registered | 2007 |
| READIMANAGER 1245360 · TMA708900 | Polycom, Inc. (a Delaware corporation) | 9 Electronics | Registered | 2008 |