| LIGHTHOUSES 0812497 · TMA487760 | MACLAREN MCCANN CANADA INC. | 35 Advertising36 Finance | Registered | 1998 |
| LIGHTHOUSES 0913874 | GOVERNMENT OF MANITOBA | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2002 |
| LIGHTHOUSE 360 1667643 · TMA933088 | Lighthouse Practice Management Group, Inc. | 35 Advertising38 Telecommunications45 Legal | Registered | 2016 |
| LIGHTOS 2207809 · TMA1242765 | Lightos Company Limited | 35 Advertising | Registered | 2024 |
| LIGHTTOUCH 1912529 · TMA1085672 · design | LightTouch Intellectual Property Inc. | 35 Advertising44 Medical | Registered | 2020 |
| LIGHTSOUT 1410613 · TMA877585 | Niigon Machines Ltd. | 35 Advertising42 Science45 Legal | Registered | 2014 |
| LIGHTCHASER 2166857 · TMA1214519 · design | LightChasers Co. Ltd | 7 Machines | Registered | 2023 |
| LIGHTECTURE 1461489 · TMA807445 · design | an individual | 11 Lighting | Registered | 2011 |
| LIGHTOK 2231275 · TMA1253955 · design | Shenzhen Shengqi Lighting Technology CO. Ltd | 11 Lighting | Registered | 2024 |
| LIGHTESS 2056780 · TMA1153051 | Suzhou Chaogou Information Technology Co. Ltd. | 11 Lighting | Registered | 2022 |
| LIGHTSHARE 2053783 · TMA1215906 · design | E Home International Inc. | 11 Lighting | Registered | 2023 |
| LightSafe 2035474 · TMA1268095 | IPC Technologies Inc. dba Prescientx | 11 Lighting | Registered | 2024 |
| LIGHTCYCLE 1905568 · TMA1093360 | Dyson Technology Limited | 11 Lighting | Registered | 2021 |
| LIGHTSCENE 1879410 · TMA1092514 | Seiko Epson Kabushiki Kaisha (also trading as Seiko Epson Corporation). | 9 Electronics11 Lighting | Registered | 2021 |
| LIGHTSCAPE 1648236 · TMA902637 | Visteon Corporation | 12 Vehicles | Registered | 2015 |
| LIGHTCLOUD 1598904 · TMA1006911 | RAB LIGHTING INC. | 9 Electronics11 Lighting | Registered | 2018 |
| LIGHTCLOUD 1594803 · TMA1005079 | RAB LIGHTING INC. | 9 Electronics42 Science | Registered | 2018 |
| LIGHTDAYS 0372439 · TMA203064 | Kimberly-Clark Worldwide, Inc. | 5 Pharmaceuticals | Registered | 1974 |
| LIGHTS 0345915 · TMA185414 | ROTHMANS, BENSON & HEDGES INC. | 34 Tobacco | Registered | 1972 |
| LIGHTCOR 2362648 | LIGHTCOR INC | 16 Paper | Pending | 2024 |
| LIGHTCURVE 2341527 · design | Mashell Telecom, Inc. DBA Rainier Connect, Inc. | 35 Advertising37 Construction38 Telecommunications+1 | Pending | 2024 |
| LIGHTCURVE 2341526 | Mashell Telecom, Inc. DBA Rainier Connect, Inc. | 35 Advertising37 Construction38 Telecommunications+1 | Pending | 2024 |
| Lightsy 2318623 | an individual | 11 Lighting | Pending | 2024 |
| LightsUp 2293705 | Taizhou Lijia Trading Co. LTD | 11 Lighting | Pending | 2023 |
| LIGHTGROVE 2291853 | LEAFT FOODS LIMITED | 1 Chemicals5 Pharmaceuticals29 Meat+2 | Pending | 2023 |