| PERFECTO 1213742 · TMA764240 | an individual | 6 Metal9 Electronics16 Paper+3 | Registered | 2010 |
| PERFECTO 0800065 · TMA483551 | First National AlarmCap LP | 9 Electronics | Registered | 1997 |
| PERFECTO 0652000 · TMA629247 | SCHOTT BROS. INC. | 18 Leather25 Clothing | Registered | 2005 |
| PERFECTO 0630885 · TMA405441 | SCHOTT BROS. INC. | 25 Clothing | Registered | 1992 |
| PERFECTO 0344124 · TMA185990 | CASTROL LIMITED | 4 Oils | Registered | 1972 |
| PERFICIENT 1755903 · TMA1003678 · design | Perficient, Inc. | 35 Advertising42 Science | Registered | 2018 |
| PERFICIENT 1463273 · TMA797870 | Perficient, Inc. | 42 Science | Registered | 2011 |
| PERFECTION !! 1035608 · TMA552995 · design | an individual | 1 Chemicals3 Cosmetics5 Pharmaceuticals+4 | Registered | 2001 |
| PERFECTION 0990481 · NFLD481 | GALENA-SIGNAL OIL COMPANY (A PENNSYLVANIA CORPORATION) | 4 Oils | Registered | 1913 |
| PERFECTION 0721826 · TMA425104 | CROWN CUSTOM METAL SPINNING INC. | 8 Hand21 Housewares | Registered | 1994 |
| PERFECTION 0483776 · TMA287892 · design | AMALGAMATED HOLDINGS INC. | 29 Meat | Registered | 1984 |
| PERFECTION 0483775 · TMA287891 · design | AMALGAMATED HOLDINGS INC. | 29 Meat | Registered | 1984 |
| PERFECTION 0428764 · TMA292707 | AMALGAMATED HOLDINGS INC. | 29 Meat35 Advertising | Registered | 1984 |
| PERFECTION 0413832 · TMA241746 | Elster Perfection Corporation | 11 Lighting | Registered | 1980 |
| PERFECTION 0370386 · TMA200926 · design | HASBRO, INC. | 28 Toys | Registered | 1974 |
| PERFECTION 0350915 · TMA196230 | AMALGAMATED HOLDINGS INC. | 29 Meat30 Coffee | Registered | 1973 |
| PERFECTION 0344110 · TMA185737 | Maple Leaf Foods Inc./Les Aliments Maple Leaf Inc. | 29 Meat | Registered | 1972 |
| PERFECTION 0334308 · TMA177195 | BONNETERIE RELIABLE INC. RELIABLE HOSIERY MFG. INC. | 25 Clothing | Registered | 1971 |
| PERFECTION 0169592 · UCA7437 | LG Harris & Co Ltd. | 16 Paper | Registered | 1936 |
| PERFECTION 0166376 · UCA4819 | AMALGAMATED HOLDINGS INC. | 29 Meat | Registered | 1935 |
| PERFECTION 0155316 · TMDA53077 | ADM AGRI-INDUSTRIES COMPANY | 30 Coffee | Registered | 1931 |
| PERFASCIN 2206926 · TMA1240347 | Guangzhoushiboyingdianzikejiyouxiangongsi | 9 Electronics | Registered | 2024 |
| PERFECTIL 2170399 · TMA1262725 | VITABIOTICS LTD | 5 Pharmaceuticals | Registered | 2024 |
| PERFECTOS 1984579 · TMA1136174 · design | Perfectos Printing Inks Group Ltd | 1 Chemicals2 Paints | Registered | 2022 |
| Perfecson 1898893 · TMA1109089 | Perfecson 6171681 Canada .inc | 9 Electronics11 Lighting35 Advertising+6 | Registered | 2021 |