- Nonresidential building operators (6263)
- Apartment building operators (3863)
- Dwelling operators, except apartments (243)
- Mobile home site operators (447)
- Railroad property lessors (4)
- Real property lessors, nec (3055)
- Real estate agents and managers (17132)
- Title abstract offices (609)
- Subdividers and developers, nec (3514)
- Cemetery subdividers and developers (450)