- Jacks
- Jamaican Restaurants
- Jams & Jellies
- Janitorial Service
- Japanese Restaurants
- Jeans
- Jewellers & Jewellery Stores
- Jewellers' Supplies
- Jewellery Buyers
- Jewellery Castings
- Jewellery Designers
- Jewellery Engravers
- Jewellery Manufacturers
- Jewellery Repair & Cleaning
- Jewellery Wholesalers
- Journal & Magazine Publishers
- Juice Bars
- Justices of the Peace