| DOO.RI 1320803 · TMA750493 | Doori Clothing Company LLC | 25 Clothing | Registered | 2009 |
| DIN DOO 1785570 · TMA1019733 · design | Titan Industries USA LLC | 11 Lighting | Registered | 2019 |
| DIN DOO 1781249 · TMA1019728 | Titan Industries USA LLC | 11 Lighting | Registered | 2019 |
| SEA DOO 1541666 · TMA840432 · design | Bombardier Recreational Products Inc. | 3 Cosmetics4 Oils6 Metal+13 | Registered | 2013 |
| KAN DOO 1352716 · TMA711163 · design | Nehemiah Manufacturing Company LLC | 3 Cosmetics | Registered | 2008 |
| KAN DOO 1208176 · TMA665819 · design | Nehemiah Manufacturing Company LLC | 3 Cosmetics | Registered | 2006 |
| DOO GRO 1043537 · TMA556004 | Altman Enterprises, Inc. a Wisconsin corporation | 3 Cosmetics | Registered | 2002 |
| SKI-DOO 0835900 · TMA492896 · design | Bombardier Recreational Products Inc. | 9 Electronics25 Clothing | Registered | 1998 |
| SKI-DOO 0688877 · TMA409464 | Bombardier Recreational Products Inc. | 28 Toys | Registered | 1993 |
| SEA·DOO 0593471 · TMA347644 · design | Bombardier Recreational Products Inc. | 12 Vehicles | Registered | 1988 |
| SEA-DOO 0560732 · TMA343142 | Bombardier Recreational Products Inc. | 1 Chemicals3 Cosmetics4 Oils+26 | Registered | 1988 |
| SKI-DOO 0322873 · TMA219799 | Bombardier Recreational Products Inc. | 4 Oils9 Electronics | Registered | 1977 |
| SKI-DOO 0321801 · TMA255700 | Bombardier Recreational Products Inc. | 7 Machines8 Hand9 Electronics+10 | Registered | 1981 |
| SKI-DOO 0317248 · TMA176452 | Bombardier Recreational Products Inc. | 1 Chemicals3 Cosmetics4 Oils+25 | Registered | 1971 |
| DOO D OO 1791409 · TMA1035718 · design | Portfolio Concentrate Solutions Unlimited Company | 21 Housewares32 Beer | Registered | 2019 |
| DOO D OO 1670708 · TMA1035702 · design | Portfolio Concentrate Solutions Unlimited Company | 21 Housewares32 Beer | Registered | 2019 |
| UNDO DOO 1345825 · TMA762558 | Orubor Integrated Technology Inc. | 1 Chemicals3 Cosmetics5 Pharmaceuticals+1 | Registered | 2010 |
| DOO-N-GO 1310222 · TMA703438 | BAG AND GO PACKAGING SUPPLIES INC. | 16 Paper | Registered | 2007 |
| PRO/DOO-Z 0854906 · TMA497682 | THE WOOSTER BRUSH COMPANY (A CORPORATION OF THE STATE OF OHIO) | 16 Paper | Registered | 1998 |
| YUMMY DOO 2109350 · design | DOO CREATIONS INC. | 10 Medical11 Lighting21 Housewares | Pending | 2021 |
| SPARKY-DOO 2178704 · TMA1220698 | an individual | 32 Beer33 Wine | Registered | 2024 |
| spinny-doo 1779008 · TMA972363 | an individual | 28 Toys35 Advertising | Registered | 2017 |
| Doggie Doo 1566633 · TMA889781 | an individual | 28 Toys | Registered | 2014 |
| SCOOBY-DOO 1241831 · TMA698492 | HANNA-BARBERA PRODUCTIONS, INC. | 12 Vehicles14 Jewellery16 Paper+9 | Registered | 2007 |
| GOOBANG DOO 1855520 · TMA1015860 | GooBang Doo Inc. | 9 Electronics11 Lighting | Registered | 2019 |