Senior Consultant at PSBS (Professional Small Busi... PSBS provides bookkeeping, payroll, income tax, and consulting services. We are members of the National Federation of Independent Businesses (NFIB), California... PSBS provides bookkeeping, payroll, income tax, and consulting services. We are members of the National Federation of Independent Businesses (NFIB), California Restaurant Association (CRA), and California Hispanic Chambers of Commerce.