- Japanese restaurant
- Juice shop
- Joiner
- Jewelry store
- Jewelry buyer
- Jewelry engraver
- Jeweler
- Jewelry designer
- Jewelry repair service
- Jewelry manufacturer
- Justice of the peace
- Justice department
- Jeep dealer
- Judo school
- Junkyard
- Junk dealer
- Janitorial equipment supplier
- Jaguar dealer
- Jewelry appraiser
- Jujitsu school