| GREGG 1102721 · TMA590541 · design | GREGG DISTRIBUTORS CO. LTD. | 9 Electronics16 Paper25 Clothing+2 | Registered | 2003 |
| GREGG 2313759 | an individual | 7 Machines9 Electronics12 Vehicles+2 | Pending | 2024 |
| GRAGG 2281112 · design | an individual | 9 Electronics | Pending | 2023 |
| GROGGY 1681428 · TMA941382 | Trio Selection Inc. | 3 Cosmetics9 Electronics14 Jewellery+5 | Registered | 2016 |
| GROGGY 1140448 · TMA642978 · design | Trio Selection Inc. | 25 Clothing | Registered | 2005 |
| GRG 1325712 · TMA755223 | Groupe Dynamite Inc. | 3 Cosmetics14 Jewellery16 Paper+5 | Registered | 2009 |
| GRIZ 1189543 · TMA624233 · design | Huck & Pray Sports Inc. | 14 Jewellery18 Leather21 Housewares+5 | Registered | 2004 |
| GRG 0813818 · TMA526495 · design | WEST MICHIGAN HOCKEY, INC. (A MICHIGAN CORPORATION) | 25 Clothing | Registered | 2000 |
| Grizz 2267407 | Owner not listed | 3 Cosmetics | Pending | 2023 |
| GROG 2148570 · design | Owner not shown | 2 Paints16 Paper25 Clothing | Pending | 2021 |
| GRIZ 0910418 | HEART AND STROKE FOUNDATION OF CANADA/FONDATION DES MALADIES DU COEUR ET DE L'AVC DU CANADA | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2000 |
| GYROSA 2237746 · TMA1264174 | Van Isle Foods Corp. | 29 Meat30 Coffee35 Advertising+1 | Registered | 2024 |
| GARZAIA 2234135 · TMA1256706 | an individual | 33 Wine | Registered | 2024 |
| GAREX 2233799 · TMA1204456 | 2539-2903 Québec inc. | 6 Metal7 Machines17 Rubber+1 | Registered | 2023 |
| GRES 2223245 · TMA1230727 | Homespun Global LLC | 24 Textiles | Registered | 2024 |
| GRACO 2222354 · TMA1203263 | Graco Children's Products Inc. | 6 Metal20 Furniture24 Textiles | Registered | 2023 |
| GRES 2220146 · TMA1230726 | Homespun Global LLC | 20 Furniture | Registered | 2024 |
| GRAZE 2210341 · TMA1231727 | Corus Entertainment Inc. | 25 Clothing38 Telecommunications41 Education | Registered | 2024 |
| grayX 2207821 · TMA1242769 | an individual | 21 Housewares | Registered | 2024 |
| GRACO 2172756 · TMA1201987 | Graco Children's Products Inc. | 28 Toys | Registered | 2023 |
| GEARX 2170185 · TMA1201958 | an individual | 8 Hand9 Electronics11 Lighting | Registered | 2023 |
| GRAOSO 2169056 · TMA1278788 | an individual | 18 Leather | Registered | 2024 |
| Gracie 2163647 · TMA1230105 | Owner not shown | 10 Medical20 Furniture42 Science | Registered | 2024 |
| Gurris 2151664 · TMA1206315 | an individual | 21 Housewares | Registered | 2023 |
| GERCHWAY 2142197 · TMA1201529 | an individual | 9 Electronics12 Vehicles | Registered | 2023 |