Corpus Christi Businesses Can Rely on Us for Employment Solutions. TIME-SAVING TECHNOLOGY, PAYROLL, HR, BENEFITS, COMPLIANCE, SAFETY INSURANCE. We specialize in Benefits Administration, Payroll Processing, HR Training, and Risk Management tailored to Corpus Christi. Ensure safety with Workers' Compensation, Safety Training, and Safety Compliance Services. ESI is a Corpus Christi Texas PEO company offering Hr Outsourcing and Payroll outsourcing services.