ESC is a human resources outsourcing ( HRO ) firm and a five-time INC 500 winner and 2008's #1 fastest growing Human Resources company in America. ESC serves thousands of families and hundreds of businesses nationwide and stands as one of the nation's premier HRO's. ESC provides businesses with under 500 employee's outsourcing solutions including human resources, benefits & insurance, compliance, and payroll. We pride ourselves on our strict focus to provide the best in quality, service, and value daily.