- Junior college
- Juice shop
- Japanese restaurant
- Jeweler
- Jewelry store
- Janitorial service
- Junkyard
- Janitorial equipment supplier
- Javanese restaurant
- Japanese grocery store
- Japanese language instructor
- Jujitsu school
- Japanese regional restaurant
- Junk dealer
- Jewelry designer
- Jewelry appraiser
- Jewelry repair service
- Justice department
- Juvenile detention center
- Japanese food