KB Accounting Co LLC Share: Accounting, Bookkeeping & Tax ServicesBusiness Services & DevelopmentInsurance KB Accounting Co LLC PO Box 1844 Ava, MO 65608 (503) 883-3272 Hours: Variable. Email/call/text. By appointment. About About KB Bookkeeping specializes in working with small/micro/solopreneur businesses to manage their bookkeeping tasks.