| GraphCoat 2133288 · TMA1194856 | Green Graphite Technologies Inc. | 1 Chemicals | Registered | 2023 |
| GRAPHICJET 1557943 · TMA834885 | Domtar Paper Company, LLC | 16 Paper | Registered | 2012 |
| GraphOS 2299520 · TMA1257134 | Apollo Graph, Inc. | 42 Science | Registered | 2024 |
| GRAPHICAPS 1962554 · TMA1227496 | Catalent Pharma Solutions, Inc. | 40 Treatment | Registered | 2024 |
| GRAPHCORE 1906832 · TMA1120010 · design | Graphcore Limited | 9 Electronics | Registered | 2022 |
| GRAPHCORE 1906593 · TMA1120011 | Graphcore Limited | 9 Electronics | Registered | 2022 |
| GRAPESHOT 1855949 · TMA1085605 | Grapeshot Limited | 9 Electronics35 Advertising42 Science+1 | Registered | 2020 |
| GRIPSHIFT 1802928 · TMA1003161 | NCS MULTISTAGE, LLC | 7 Machines37 Construction40 Treatment | Registered | 2018 |
| GRAPHOS 1364389 · TMA760753 | Graphos Graphic Design Studios Inc. | 35 Advertising42 Science | Registered | 2010 |
| GRAPHIC 1118445 · TMA587650 · design | GRAPHIC PRINTING ROLLER LTD. | 7 Machines37 Construction40 Treatment | Registered | 2003 |
| GRAPHSTAR 0642775 · TMA443418 | Spicers Canada ULC | 1 Chemicals2 Paints3 Cosmetics+11 | Registered | 1995 |
| GRAPHIC 0592897 · TMA352831 | GRAPHIC PRINTING ROLLER LTD. | 7 Machines | Registered | 1989 |
| GRAPHIC 0431291 · TMA240398 | Global Total Office (an Ontario limited partnership) | 20 Furniture | Registered | 1980 |
| GRIPHOIST 0340206 · TMA182041 | an individual | 6 Metal7 Machines20 Furniture | Registered | 1972 |
| GraphCore 2233916 | BLACK SWAN GRAPHENE INC. | 1 Chemicals2 Paints19 Building | Pending | 2023 |
| GRAPHISTRENGTH 1294245 · TMA726204 | an individual | 1 Chemicals17 Rubber22 Ropes | Registered | 2008 |
| GRYPHVISION 0924789 | UNIVERSITY OF GUELPH | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2017 |
| GRIPCLIP 2309966 · TMA1116612 | Owner not listed | 16 Paper | Registered | 2021 |
| GRAVIX 2262729 · TMA1283172 | an individual | 28 Toys | Registered | 2025 |
| GRFISIA 2255078 · TMA1277623 | Yiwu Aoku Import & Export Co. Ltd. | 9 Electronics | Registered | 2024 |
| GRPSKCOS 2218991 · TMA1246876 · design | Shenzhen Youlai Cosmetics Trading Co., Ltd. | 25 Clothing | Registered | 2024 |
| GRAFSOUL 2175205 · TMA1226171 | Guangzhou Chuyu Fashion Design Co. Ltd. | 18 Leather25 Clothing | Registered | 2024 |
| GREFUSION 2174991 · TMA1226139 · design | Shanghai Torise Digital Technology Co.Ltd | 16 Paper | Registered | 2024 |
| GrapeGrow 2169429 · TMA1214596 | TerraLink Horticulture Inc. | 1 Chemicals | Registered | 2023 |
| GARBAGEPRO 2168955 · TMA1219914 | Kraus USA Plumbing LLC | 21 Housewares | Registered | 2024 |