| IOGENT 1844588 · TMA1066265 | Elanco Animal Health GmbH | 1 Chemicals5 Pharmaceuticals | Registered | 2019 |
| iCent 1839409 · TMA1008938 | Neel-Tech, Inc. | 9 Electronics | Registered | 2018 |
| iCenter 1366043 · TMA776203 | Standard Electronics Inc. | 9 Electronics | Registered | 2010 |
| IGENITY 1183697 · TMA656759 | Neogen Corporation | 5 Pharmaceuticals | Registered | 2006 |
| IGNT 2219551 | All In Bits Inc. | 9 Electronics35 Advertising36 Finance+2 | Pending | 2022 |
| IKANTA 2133223 | an individual | 15 Musical16 Paper21 Housewares | Pending | 2021 |
| IGNITER 2247908 · TMA1268590 | Owner not listed | 35 Advertising41 Education | Registered | 2024 |
| Ignition 2156410 · TMA1259363 | Practice Ignition Pty Ltd | 9 Electronics42 Science | Registered | 2024 |
| IGNITION 2156338 · TMA1259362 · design | Practice Ignition Pty Ltd | 9 Electronics42 Science | Registered | 2024 |
| ICOMTOFIT 2152106 · TMA1206370 | an individual | 9 Electronics | Registered | 2023 |
| isnowood 2124584 · TMA1197770 | RCD INTERNATIONAL TRADING INC. | 25 Clothing | Registered | 2023 |
| 6IGNATURE 2068765 · TMA1205843 · design | Dovev Group Ltd. | 41 Education | Registered | 2023 |
| ISMATEC 2068000 · TMA1166844 | Masterflex, LLC | 9 Electronics | Registered | 2023 |
| izando 2001746 · TMA1137307 | an individual | 5 Pharmaceuticals9 Electronics10 Medical+1 | Registered | 2022 |
| ISKANDIA 1981596 · TMA1171846 | Beam Earth Limited | 37 Construction40 Treatment | Registered | 2023 |
| ISMOD 1954866 · TMA1178051 · design | DONGGUAN MYSMOK ELECTRONIC TECHNOLOGY CO.LTD | 34 Tobacco | Registered | 2023 |
| IGNITUS 1938568 · TMA1189000 | an individual | 35 Advertising41 Education42 Science | Registered | 2023 |
| iAccounting 1917598 · TMA1099660 | Alborz Accounting Inc. | 35 Advertising | Registered | 2021 |
| ICONMOTION 1873620 · TMA1105046 · design | Icon Digital Productions Inc. | 38 Telecommunications41 Education42 Science | Registered | 2021 |
| ISSUENET 1843502 · TMA1022012 | IPREO LLC | 42 Science | Registered | 2019 |
| IGNETEC 1836058 · TMA1076568 | GLAXO GROUP LIMITED | 5 Pharmaceuticals44 Medical | Registered | 2020 |
| ICONTROLS 1824171 · TMA997786 · design | iControls Inc. | 9 Electronics40 Treatment42 Science | Registered | 2018 |
| IGNITOR 1800062 · TMA1029808 | Glanbia Nutritionals Limited | 1 Chemicals | Registered | 2019 |
| IQMETRIX 1788936 · TMA1021376 · design | IQMetrix Software Development Corp. | 9 Electronics42 Science | Registered | 2019 |
| IQMETRIX 1788097 · TMA1030530 | IQMetrix Software Development Corp. | 9 Electronics41 Education42 Science | Registered | 2019 |