Streamline Your Business Operations in Houston with Our Comprehensive Employment Solutions. TIME-SAVING TECHNOLOGY, PAYROLL, HR, BENEFITS, COMPLIANCE, SAFETY INSURANCE. We offer HR Management, Payroll Processing, Medical Insurance, and Workers' Compensation tailored to meet the unique needs of Houston businesses. Protect your business with Cyber Security, Business Insurance, and Risk Management Solutions. ESI is a Houston PEO services and Houston Payroll Outsourcing Service.