| 3699 | Parasols, manufacturing | |
| 2421 | Parathion insecticides, manufacturing | |
| 6022 | Paratransit transportation services | |
| 6412 | Parcel delivery service, courier | |
| 6412 | Parcel delivery, private (air) | |
| 6412 | Parcel delivery, private (except air) | |
| 6412 | Parcel express service, courier | |
| 7499 | Parcel pick-up centre for catalogue retailer | |
| 2919 | Parcel post scales, manufacturing | |
| 1911 | Parchment leather, manufacturing | |
| 8532 | Parenting services | |
| 9199 | Parent-teachers associations | |
| 6591 | Pari-mutuel totalizator equipment finance leasing and maintenance | |
| 2421 | Paris green insecticides, manufacturing | |
| 7523 | Parish courts | |
| 6603 | Parish mutual insurance companies | |
| 4520 | Park grounds and recreational open space improvement, construction | |
| 9219 | Park, amusement (i.e., theme parks, water parks) | |
| 1810 | Parkas, men's and boys', cut and sewn from purchased fabric | |
| 2892 | Parkerizing metals and metal products, for the trade | |
| 4520 | Parking area construction (except private), general contractor | |
| 6303 | Parking garages | |
| 4520 | Parking garages, construction | |
| 3190 | Parking lights, automotive, manufacturing | |
| 4520 | Parking lot and driveway, asphalt resurfacing | |
| 4520 | Parking lot marking and line painting | |
| 4520 | Parking lot, commercial, construction, contractors | |
| 6303 | Parking lots | |
| 3330 | Parking meters, manufacturing | |
| 5150 | Parking meters, wholesale | |
| 6303 | Parking service, aircraft | |
| 9309 | Parking services, valet | |
| 7512 | Parks and recreation commission, municipal government | |
| 7512 | Parks commission, provincial government | |
| 9233 | Parks, nature | |
| 5510 | Parks, travel trailer | |
| 9233 | Parks, wild animal | |
| 4520 | Parkway construction, general contractors | |
| 7511 | Parliament, federal government | |
| 5510 | Parlour car services, not performed by line-haul railroad companies | |