| ISCGOLD 1555943 · TMA883524 | SPC RESOURCES, INC. | 42 Science | Registered | 2014 |
| ICLOUD+ 2183468 · TMA1280708 | Apple Inc. | 9 Electronics | Registered | 2025 |
| ICLOUD 2007749 · TMA1144449 | Apple Inc. | 38 Telecommunications39 Transport40 Treatment | Registered | 2022 |
| ICLOUD 1845669 · TMA1082847 · design | Apple Inc. | 42 Science | Registered | 2020 |
| ICLOUD 1845663 · TMA1083226 · design | Apple Inc. | 9 Electronics | Registered | 2020 |
| ICLOUD 1845637 · TMA1025949 · design | Apple Inc. | 39 Transport42 Science | Registered | 2019 |
| ICLOUD 1529782 · TMA939371 | Apple Inc. | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2016 |
| ICLOUD 2251756 · design | Apple Inc. | 41 Education42 Science | Pending | 2023 |
| ICLOUD+ 2183467 | Apple Inc. | 35 Advertising38 Telecommunications40 Treatment+2 | Pending | 2021 |
| ICLOUD+ 2165468 | Apple Inc. | 39 Transport | Pending | 2021 |
| ICLOUD 1971359 | Apple Inc. | 9 Electronics10 Medical11 Lighting+8 | Pending | 2019 |
| IQSHIELD 2187331 · TMA1233544 | Wuhan Shenlemoer Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| ISLIT 2158335 · TMA1259374 | Owner not shown | 7 Machines9 Electronics | Registered | 2024 |
| ISLIT 2158334 · TMA1259373 · design | Owner not shown | 7 Machines9 Electronics | Registered | 2024 |
| Iseult 2149086 · TMA1203139 | Owner not shown | 33 Wine | Registered | 2023 |
| IKWOLETI 2100060 · TMA1277245 · design | Shenzhen Changyuanhuiju Trading Co. Ltd. | 16 Paper | Registered | 2024 |
| ISOLIT 2086367 · TMA1168754 | Primeval Labs, LLC | 5 Pharmaceuticals | Registered | 2023 |
| IKALTI 1925294 · TMA1115173 | Allergan Pharmaceuticals International Limited | 5 Pharmaceuticals | Registered | 2021 |
| IXLOAD 1888175 · TMA1071410 | Keysight Technologies, Inc. | 9 Electronics | Registered | 2020 |
| IQALUEAT 1847623 · TMA1076370 | an individual | 31 Fresh35 Advertising39 Transport | Registered | 2020 |
| ISHIELDZ 1846315 · TMA1053771 | GENTEC, a partnership consisting of 901089 Ontario Limited and 2494979 Ontario Limited | 9 Electronics10 Medical | Registered | 2019 |
| ISOLATOR 1839229 · TMA1022944 | AtriCure, Inc. | 10 Medical | Registered | 2019 |
| ISOlution 1822940 · TMA1023362 | ENHANCED MEDICAL NUTRITION INC. | 5 Pharmaceuticals | Registered | 2019 |
| ISALAD 1729815 · TMA1065926 | an individual | 31 Fresh | Registered | 2019 |
| ISOWELD 1706100 · TMA930530 | an individual | 7 Machines9 Electronics11 Lighting+2 | Registered | 2016 |