| FABCO 0300728 · TMA154805 · design | Hobart Brothers LLC | 9 Electronics | Registered | 1967 |
| FABUX 1370836 · TMA783686 | an individual | 9 Electronics16 Paper35 Advertising+3 | Registered | 2010 |
| FUBSY 0776215 · TMA495162 | an individual | 9 Electronics22 Ropes28 Toys+3 | Registered | 1998 |
| FEBCO 2316251 | Watts Regulator Co. | 7 Machines11 Lighting | Pending | 2024 |
| Fafeicy 2239000 · TMA1258353 | Owner not listed | 7 Machines8 Hand9 Electronics | Registered | 2024 |
| FAVUZZI 2199008 · TMA1275926 | Favuzzi International inc. | 9 Electronics16 Paper | Registered | 2024 |
| FIFIGO 2181656 · TMA1229562 | an individual | 21 Housewares | Registered | 2024 |
| FYBIEXO 2169400 · TMA1200574 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| Fioboc 2166640 · TMA1234499 | Fujian Great White Shark Information Technology Co. Ltd. | 25 Clothing | Registered | 2024 |
| FOVS 2158025 · TMA1218377 · design | Shenzhen SP2S Technology Co.Ltd. | 34 Tobacco35 Advertising | Registered | 2024 |
| FOFOS 2122550 · TMA1196746 · design | FOFOS Limited | 28 Toys | Registered | 2023 |
| Foovick 2109651 · TMA1191910 | Maniac Partners Inc | 16 Paper | Registered | 2023 |
| FAVUZZI 2108615 · TMA1275643 | Favuzzi International inc. | 35 Advertising | Registered | 2024 |
| FIBICE 2042097 · TMA1142872 | an individual | 28 Toys | Registered | 2022 |
| FABICI 1932027 · TMA1119820 | ROBCO INC. | 9 Electronics20 Furniture21 Housewares+1 | Registered | 2022 |
| 822FABHOUSE 1906365 · TMA1118732 · design | HUTCHINSON SA | 35 Advertising41 Education | Registered | 2022 |
| 616FABHOUSE 1906363 · TMA1118730 · design | HUTCHINSON SA | 35 Advertising41 Education | Registered | 2022 |
| FEVEOS 1864308 · TMA1065564 | BOEHRINGER INGELHEIM INTERNATIONAL GMBH | 5 Pharmaceuticals | Registered | 2019 |
| FIFIUS 1860504 · TMA1060537 | an individual | 5 Pharmaceuticals10 Medical31 Fresh | Registered | 2019 |
| FAAFS 1854427 · TMA1079714 | an individual | 4 Oils6 Metal7 Machines | Registered | 2020 |
| FOVEX 1682794 · TMA964159 | an individual | 9 Electronics42 Science | Registered | 2017 |
| FEFS 1565772 · TMA991982 | FUJITSU LIMITED | 9 Electronics | Registered | 2018 |
| FAVUZZI 1528045 · TMA836537 | Favuzzi International inc. | 21 Housewares25 Clothing29 Meat+3 | Registered | 2012 |
| FIVES 1378146 · TMA770074 | Fives | 6 Metal7 Machines9 Electronics+5 | Registered | 2010 |
| FUBUKI 1366564 · TMA735292 | Mitsubishi Chemical Corporation | 28 Toys | Registered | 2009 |