CoAdvantage Share: Staffing & HR Services CoAdvantage Visit Website Request Info 200 Prosperity Drive Unit 120 Knoxville, TN 37923 (615) 473-8360 About Map About PEO (Professional Employer Organization) help business owners in four core area's, those being HR, Workers Compensation, Employee Benefits, and payroll processing What's Nearby? Distance: 5 10 15 20 25 50 mi.