Employees seek financial security, quality health insurance, a safe working environment and opportunities for retirement savings. When a company works with a PEO, job security is improved as the PEO implements efficiencies to lower employment costs. Job satisfaction and productivity increase when employees are provided with professional human resource services, training, employee manuals, safety services and improved communications. And in many cases, a co-employment relationship provides employees with an expanded employee benefits package, to include a 401(k), life insurance, disability insurance, discount plans, a flexible spending plan and more.