| REDEES 1988637 | 9037136 Canada Inc. | 34 Tobacco | Pending | 2019 |
| REDEES 1983432 | 9037136 Canada Inc. | 34 Tobacco | Pending | 2019 |
| REDESCA 1997753 · TMA1257393 | Valeo Pharma Inc. | 5 Pharmaceuticals | Registered | 2024 |
| REDESCO 2112728 · design | Titan Clean Energy Projects Corporation | 17 Rubber | Pending | 2021 |
| RIDES 2052771 · TMA1275386 | RIDES CANADA INC. | 36 Finance | Registered | 2024 |
| REDISO 1962035 · TMA1266175 · design | Owner not shown | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2024 |
| REDISO 1942954 · TMA1209190 | Owner not shown | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2023 |
| REDIS 1888465 · TMA1120455 | Redis Ltd. | 9 Electronics42 Science | Registered | 2022 |
| RedEx 1690975 · TMA964060 | Diringer & Scheidel Rohrsanierung GmbH & Co. KG | 17 Rubber19 Building37 Construction | Registered | 2017 |
| RODECS 1480206 · TMA882891 | an individual | 35 Advertising40 Treatment42 Science | Registered | 2014 |
| REDS 1068852 · TMA641228 | SIR Royalty Limited Partnership | 43 Restaurants | Registered | 2005 |
| REEDS 0899659 · TMA561592 | REEDS JEWELERS OF NIAGARA FALLS, INC. | 14 Jewellery35 Advertising | Registered | 2002 |
| REDEX 0225680 · UCA50881 | REDEX LIMITED | 4 Oils7 Machines9 Electronics+2 | Registered | 1954 |
| REEDS 2347617 | Reeds Jewelers, Inc. | 16 Paper | Pending | 2024 |
| REDIS 2313171 · design | Redis Ltd. | 9 Electronics42 Science | Pending | 2024 |
| REDS 2121678 | LOCKERROOM MARKETING LTD. | 1 Chemicals3 Cosmetics | Pending | 2021 |
| REDS 0928093 · design | The University of New Brunswick | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2024 |
| REDS 0928091 · design | The University of New Brunswick | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2024 |
| RADIESSE 1280031 · TMA699328 | Merz North America, Inc. | 5 Pharmaceuticals | Registered | 2007 |
| RETISSA 2002378 · TMA1116912 | QD LASER, INC. | 9 Electronics10 Medical | Registered | 2022 |
| ROTESSA 1863054 · TMA1060730 | Rotessa, Inc | 42 Science | Registered | 2019 |
| RIDEASY 1711796 · TMA927287 | UNICA ASSURANCES INC./UNICA INSURANCE INC. | 36 Finance | Registered | 2016 |
| RADIOSS 1439692 · TMA793758 | Altair Engineering, Inc. (a Michigan corporation) | 9 Electronics | Registered | 2011 |
| READIUS 1278310 · TMA792003 | Wistron Corporation | 9 Electronics | Registered | 2011 |
| REDDISH 2245870 · design | HuaFei Sporting Goods Co. Ltd, Zhangzhou | 28 Toys | Pending | 2022 |