Retail business services uses, limited to a maximum unit size of 6,000 square feet, as follows: Major Group 60, banking, excluding industry number 6059 (establishments performing functions closely related to deposit banking not elsewhere classified); Major Group 61 credit agencies other than banks; Major Group 62, security and commodity brokers, dealers, exchanges and services; Major Group 64 insurance agents, brokers, and service; Major Group 65 real estate; Major Group 72, personal services, excluding 7261 (funeral services and crematories), 7299-03 (escort services); 7299-04 (house sitting service), 7299-16 (single organizations), 7299-19 (baby sitters), 7299-26 (dating services), 7299-77 (philosophers, 7299-51 (coats of arms), 7299-54 (vehicle & drivers licenses services); Major Group 73, business services excluding industry number 7399 (business services, not elsewhere classified); Major Group 76, miscellaneous repair services, including within 7699 (repair shops and related services, not elsewhere classified) only those establishments specifically listed except agricultural equipment repair, fire control equipment repair, gunsmith shops, industrial truck repair, motorcycle service repair, and tractor repair; Major Group 79, industry number 7911 (including dance studios and schools, but excluding dance halls) and 7933 (bowling alleys); Major Group 86, membership organizations, industry number 8611 (business associations), 8621 (professional membership organizations); 8631 (labor union and similar labor organizations); 8641 (civic, social and fraternal associations) and 8651 (political organizations only, and Major Group 87 (engineering, accounting, research, management, and related services, excluding industry number 8731 (commercial physical and biological research); 8733 noncommercial research organizations), and 8734 (testing laboratories).