Onin Staffing Share: Consultants Onin Staffing Request Info 154 West Central Avenue Petal, MS 39465 601-588-2174 About Map About Staffing Good Teammates to Good Companies. We act as a leading recruiting and HR office for multiple clients and customers. Over 700 million associates have walked in our offices just last year. What's Nearby? Distance: 5 10 15 20 25 50 mi.