| REACTOR 1956018 · TMA1275029 | Graco Minnesota Inc. | 9 Electronics17 Rubber | Registered | 2024 |
| REAKTOR 1870556 · TMA1141614 | an individual | 9 Electronics41 Education42 Science | Registered | 2022 |
| RSTOR 1866875 · TMA1089197 | R-Stor Inc. | 9 Electronics42 Science | Registered | 2020 |
| RAGSTAR 1773927 · TMA1010996 | 9337-0864 QUEBEC INC. | 14 Jewellery18 Leather25 Clothing+1 | Registered | 2018 |
| REACTOR 1733413 · TMA948721 | Waterloo Accelerator Centre | 35 Advertising36 Finance | Registered | 2016 |
| REACTOR 1728089 · TMA991401 · design | HOME HARDWARE STORES LIMITED | 9 Electronics11 Lighting | Registered | 2018 |
| REACTOR 1711335 · TMA962389 | PURE LABORATORIES, LLC | 9 Electronics34 Tobacco | Registered | 2017 |
| REACTOR 1584786 · TMA855758 · design | HOME HARDWARE STORES LIMITED | 11 Lighting | Registered | 2013 |
| REACTOR 1484870 · TMA820209 · design | HOME HARDWARE STORES LIMITED | 9 Electronics10 Medical11 Lighting+1 | Registered | 2012 |
| REACTOR 1456875 · TMA819335 · design | an individual | 14 Jewellery | Registered | 2012 |
| RESTOR 1454239 · TMA793403 | Alcon Inc. | 10 Medical | Registered | 2011 |
| REACTOR 1325328 · TMA845983 | CASCADE DESIGNS, INC. | 11 Lighting | Registered | 2013 |
| REGITAR 1317912 · TMA752716 · design | MOBILETRON ELECTRONICS CO. LTD. | 7 Machines9 Electronics12 Vehicles | Registered | 2009 |
| REACTOR 1086701 · TMA615060 | Garmin Switzerland GmbH | 9 Electronics39 Transport | Registered | 2004 |
| REACTOR 0744204 · TMA478724 | Bauer Hockey Ltd. | 9 Electronics12 Vehicles25 Clothing+1 | Registered | 1997 |
| RESTOR 0720985 · TMA615108 · design | Alcon Inc. | 10 Medical | Registered | 2004 |
| ROOSTER 0464284 · TMA281667 · design | ROOSTER, INC. | 25 Clothing | Registered | 1983 |
| ROOSTER 0160751 · UCA2451 | THE VILLA PARK ORCHARDS ASSOCIATION (A CALIFORNIA CORPORATION) | 31 Fresh | Registered | 1932 |
| ROASTAR 2351033 | Roastar, Inc. | 6 Metal16 Paper40 Treatment | Pending | 2024 |
| ROOSTER 2294106 · design | Owner not listed | 33 Wine | Pending | 2023 |
| ROOSTER 2234941 · combined | an individual | 33 Wine | Pending | 2023 |
| ROOSTER 2123720 | Rooster, LLC | 9 Electronics | Pending | 2021 |
| REACTOR 2078544 | Sampdore Adventures Limited | 9 Electronics28 Toys41 Education | Pending | 2021 |
| Reactor 2076584 | Challenger Technical Services Ltd. | 7 Machines | Pending | 2021 |
| ROCKEATER 1619142 · TMA878564 | Stelco Europa Limited | 7 Machines8 Hand | Registered | 2014 |