| 5121 | Pelts, wholesale | |
| 0150 | Pelts, wild animal, undressed (except seal skins), skinning | |
| 3311 | Pelvimeters, manufacturing | |
| 3699 | Pen and pencil parts, mechanical, manufacturing | |
| 5239 | Pen and pencil shops-retail | |
| 3699 | Pen nibs and points, manufacturing | |
| 3699 | Pen points, gold, steel, or other metal, manufacturing | |
| 3699 | Pen refills and cartridges, manufacturing | |
| 3699 | Pencil holders, manufacturing | |
| 3699 | Pencil leads, manufacturing | |
| 3000 | Pencil sharpeners, manufacturing | |
| 2029 | Pencil slats, wood, manufacturing | |
| 3699 | Pencils (except mechanical), manufacturing | |
| 3699 | Pencils and pencil parts (except mechanical), manufacturing | |
| 3699 | Pencils and pencil parts, mechanical, manufacturing | |
| 3699 | Pencils, hair (artists' brushes), manufacturing | |
| 3699 | Pencils, lead and mechanical, manufacturing | |
| 5139 | Pencils, wholesale | |
| 3150 | Pendant lamps, commercial, industrial and institutional, manufacturing | |
| 2429 | Penetrants, manufacturing | |
| 2429 | Penetrating fluids, synthetic, manufacturing | |
| 2320 | Penetrating oils, petroleum, made from refined petroleum | |
| 3699 | Penholders and parts, manufacturing | |
| 2423 | Penicillin preparations, manufacturing | |
| 2423 | Penicillin, uncompounded, manufacturing | |
| 4520 | Penitentiaries, construction | |
| 7523 | Penitentiaries, government | |
| 7523 | Penitentiaries, provincial government | |
| 7523 | Penitentiary services, federal government | |
| 3699 | Penpoints, gold, steel, or other metal, manufacturing | |
| 3699 | Pens and pen parts (e.g., fountain, stylographic, ballpoint), manufacturing | |
| 3699 | Pens, fountain, stylograph, manufacturing | |
| 3699 | Pens, manufacturing | |
| 5139 | Pens, pencils and marking devices, wholesale | |
| 6720 | Pension and retirement plan consultants | |
| 6602 | Pension funds, management | |
| 6602 | Pension funds, not trusteed | |
| 7530 | Pension payments, social insurance, federal | |
| 6602 | Pension plan (not trusteed) | |
| 2811 | Penstocks, fabricated metal plate, manufacturing | |