| LOO 1022733 · TMA541594 | WATERLOO BIOFILTER SYSTEMS INC. | 1 Chemicals | Registered | 2001 |
| LOO 2345433 | Loo Creations Ltd. | 5 Pharmaceuticals | Pending | 2024 |
| Loo Seal 2347896 · design | HUIYUANDONG (XIAMEN) HEALTH TECHNOLOGY CO. LTD. | 11 Lighting | Pending | 2024 |
| LEO'S LOO 2156261 · TMA1192952 · design | PurLife Brands Inc. | 21 Housewares | Registered | 2023 |
| JIG-A-LOO 1317701 · TMA750232 · design | 8183457 CANADA INC. | 4 Oils | Registered | 2009 |
| JIG-A-LOO 0251577 · TMA115652 | 8183457 CANADA INC. | 4 Oils | Registered | 1959 |
| AIROMA LOO 2070810 · TMA1159340 | Saje Natural Business Inc. | 3 Cosmetics | Registered | 2023 |
| AIROMA LOO 1791856 · TMA993316 | Saje Natural Business Inc. | 5 Pharmaceuticals | Registered | 2018 |
| ENVIRO LOO 2245657 · design | Enviro Options Shared Services (Proprietary) Limited | 11 Lighting35 Advertising37 Construction | Pending | 2023 |
| NATURE LOO 2207661 · design | Ecoflo Wastewater Management Pty Ltd | 6 Metal11 Lighting19 Building | Pending | 2022 |
| THE LUX LOO 2198880 · TMA1237553 | The Lux Loo Portable Restrooms Ltd. | 11 Lighting37 Construction44 Medical | Registered | 2024 |
| LOO.KOO.MAS. 2202874 · design | Owner not shown | 35 Advertising43 Restaurants45 Legal | Pending | 2022 |
| LUGGABLE LOO 0685528 · TMA408038 | RELIANCE PRODUCTS LTD. | 11 Lighting | Registered | 1993 |
| Blue in the Loo 0923010 | THE CORPORATION OF THE CITY OF PETERBOROUGH | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2014 |
| Lucy-Loo and Roo 2091900 | 10652598 CANADA INC. | 14 Jewellery16 Paper21 Housewares+3 | Pending | 2021 |
| AUNTIE LOO'S TREATS 1644275 · TMA892020 | AUNTIE LOO'S TREATS INC. | 9 Electronics16 Paper25 Clothing+5 | Registered | 2014 |
| LOO KOO BEIGNETS GRECS 2050039 · TMA1280096 · design | LOOKOO HOLDINGS INC. | 29 Meat30 Coffee32 Beer+2 | Registered | 2025 |
| LOO KOO BEIGNETS GRECS 2050037 · TMA1280095 · design | LOOKOO HOLDINGS INC. | 29 Meat30 Coffee32 Beer+2 | Registered | 2025 |
| LOO KOO BEIGNETS GRECS 2050021 · TMA1280094 · design | LOOKOO HOLDINGS INC. | 29 Meat30 Coffee32 Beer+2 | Registered | 2025 |
| LOO KOO BEIGNETS GRECS 2050016 · TMA1280093 · design | LOOKOO HOLDINGS INC. | 29 Meat30 Coffee32 Beer+2 | Registered | 2025 |
| ECONOGREEN BY JIG-A-LOO 1417093 · TMA767229 · design | 8183457 CANADA INC. | 16 Paper | Registered | 2010 |
| L THE LUX LOO SINCE 2019 2198879 · TMA1237552 · design | The Lux Loo Portable Restrooms Ltd. | 11 Lighting37 Construction44 Medical | Registered | 2024 |
| Chinese Characters Shang Loo 2109552 · TMA1177850 · design | PUN CHUN SAUCE & PRESERVED FRUIT FACTORY LTD. | 30 Coffee | Registered | 2023 |
| THE PORTLAND LOO A UNIQUE SOLUTION TO A UNIVERSAL PROBLEM 1942299 · TMA1205590 · design | City of Portland, an Oregon municipal corporation | 11 Lighting | Registered | 2023 |
| THE WORLD'S 1ST SPRAYABLE SPACKLING JIG-A-PATCH PAR/BY JIG-A-LOO 1383332 · TMA787248 · design | 8183457 CANADA INC. | 19 Building | Registered | 2011 |