| Idea. 2157252 · TMA1192969 · design | Sichuan Weiyi Beverage and Food Co. Ltd. | 29 Meat30 Coffee31 Fresh+1 | Registered | 2023 |
| IDEA 1624383 · TMA915746 | Legrand AV Inc. | 12 Vehicles16 Paper | Registered | 2015 |
| IDEA 1351372 · TMA727166 | IDEAfit, Inc. | 9 Electronics16 Paper25 Clothing+1 | Registered | 2008 |
| IDEA 0742244 · TMA459864 | CaseWare International Inc. | 9 Electronics | Registered | 1996 |
| IDEA 0601442 · TMA381441 · design | IDEAfit, Inc. | 16 Paper | Registered | 1991 |
| IDÉA 0916309 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2005 |
| IDEA 0901632 | IDEA CORPORATION | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1983 |
| ITHEIA 2223125 | INTERNATIONAL ROAD DYNAMICS, INC. | 9 Electronics42 Science | Pending | 2022 |
| Ida 2194678 · TMA1274190 | 9362-5739 Québec inc. | 9 Electronics45 Legal | Registered | 2024 |
| IDA 1948560 · TMA1269221 | an individual | 9 Electronics | Registered | 2024 |
| IDA 1905751 · TMA1122863 | an individual | 9 Electronics12 Vehicles38 Telecommunications | Registered | 2022 |
| IDEO 1756353 · TMA955404 | IDEO LP | 41 Education | Registered | 2016 |
| IDEO 1483583 · TMA813423 · design | IDEO LP | 35 Advertising38 Telecommunications41 Education+1 | Registered | 2011 |
| IDA 1309094 · TMA714443 | International Door Association (a Delaware corporation) | 35 Advertising | Registered | 2008 |
| IDA 0621141 · TMA370025 | Owner not shown | 16 Paper35 Advertising41 Education | Registered | 1990 |
| IDEIA 0549900 · TMA346008 | Oxoid (Ely) Limited | 1 Chemicals | Registered | 1988 |
| IDEO + 2086270 · design | an individual | 36 Finance | Pending | 2021 |
| IDEO+ 2084746 | an individual | 36 Finance | Pending | 2021 |
| IDA 0974482 | INTERNATIONAL BANK FOR RECONSTRUCTION AND DEVELOPMENT / BANQUE INTERNATIONALE POUR LA RÉCONSTRUCTION ET LE DÉVELOPPMENT | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2023 |
| IDÉ 0911551 · design | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2000 |
| IDH 0907207 | CANADA POST CORPORATION | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1995 |
| IDEE 0905214 · design | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1992 |
| IDAA 0902187 · design | IMPROVEMENT DISTRICTS ASSOCIATION OF ALBERTA | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1985 |
| iHood 2239474 · TMA1259935 | an individual | 11 Lighting25 Clothing | Registered | 2024 |
| iHood 2239472 · TMA1259934 | an individual | 9 Electronics | Registered | 2024 |