- Trade associations (815)
- Contractors' association (90)
- Manufacturers' institute (29)
- Merchants' association (39)
- Public utility association (131)
- Shipping and steamship company association (18)
- Growers' marketing advisory service (92)
- Better Business Bureau (34)
- Board of Trade (35)
- Industrial standards committee (20)
- Real estate board (85)
- Banker's organization, advisory services (7)
- Chamber of Commerce (584)
- Community affairs and services (187)
- Junior Chamber of Commerce (5)
