| CUSTOMFX 2008440 · TMA1239344 | Conair LLC | 8 Hand | Registered | 2024 |
| CUSTOMINK 1607085 · TMA911794 · design | CUSTOMINK, LLC | 25 Clothing | Registered | 2015 |
| CUSTOMINK 1607079 · TMA910935 | CUSTOMINK, LLC | 35 Advertising40 Treatment42 Science | Registered | 2015 |
| CUSTOMINK 1607077 · TMA919365 · design | CUSTOMINK, LLC | 25 Clothing35 Advertising40 Treatment+1 | Registered | 2015 |
| CustomsCity 2303461 · design | Owner not listed | 9 Electronics42 Science | Pending | 2023 |
| CustomLink 1851734 · TMA1025846 | WALDEMAR LINK GMBH & CO. KG | 10 Medical | Registered | 2019 |
| CUSTOMIQUE 1393051 · TMA814053 | M/s. Customique Online Products Private Limited | 16 Paper24 Textiles25 Clothing | Registered | 2011 |
| CUSTOMVITE 1348242 · TMA767320 | Stella Pharmaceutical Canada Inc. a Canadian corporation | 5 Pharmaceuticals | Registered | 2010 |
| CUSTOMYIZE 1302560 · TMA738234 | ACCO Brands Corporation | 16 Paper | Registered | 2009 |
| CUSTOMIZER 0849283 · TMA493194 | ACCO Brands Corporation | 16 Paper | Registered | 1998 |
| CUSTOMLINE 0734633 · TMA439168 | DASHWOOD INDUSTRIES LIMITED | 19 Building | Registered | 1995 |
| CUSTOMLINE 0623568 · TMA365046 | The Chesterfield Shop (Ontario) Ltd. | 11 Lighting20 Furniture | Registered | 1990 |
| CUSTOMLINE 0501907 · TMA307792 | CertainTeed Ceilings Corporation | 6 Metal19 Building | Registered | 1985 |
| CustomKing 2318984 | Anhui Baba Rabbit Business Co. Ltd. | 21 Housewares | Pending | 2024 |
| CUSTOMBUYZ 2273596 · design | Owner not listed | 25 Clothing35 Advertising | Pending | 2023 |
| CUSTOMAIRE 2130617 | Emco Corporation | 9 Electronics11 Lighting17 Rubber+2 | Pending | 2021 |
| CUSTONOMY 2173980 · TMA1226094 · design | Custonomy Company Limited | 36 Finance42 Science | Registered | 2024 |
| CUSTOM 1748836 · TMA1058061 · design | Unilever Global IP Limited | 3 Cosmetics44 Medical | Registered | 2019 |
| CUSTOMVUE 1745426 · TMA971248 | AMO Manufacturing USA, LLC | 44 Medical | Registered | 2017 |
| CUSTOMVUE 1607957 · TMA958589 | AMO Manufacturing USA, LLC | 9 Electronics10 Medical | Registered | 2016 |
| CUSTOM 1392199 · TMA757790 · design | Hydrolico International Inc. | 7 Machines | Registered | 2010 |
| CUSTOM 1293351 · TMA714992 · design | an individual | 9 Electronics | Registered | 2008 |
| CUSTOM 1212594 · TMA640477 | Custom Building Products, Inc. | 1 Chemicals2 Paints3 Cosmetics+4 | Registered | 2005 |
| CUSTOM 1067365 · TMA565249 · design | YAMAHA CORPORATION A LEGAL ENTITY | 15 Musical | Registered | 2002 |
| CUSTOMDOC 0860724 · TMA554308 | Global Knowledge Network, Inc. (a Delaware Corporation) | 9 Electronics16 Paper | Registered | 2001 |