Grand Slam Payroll Services (formerly # 1 Payroll Services) was established in 2014 by Matthew Siegerman, CPA & Andrew Siegerman. Andrew Siegerman is the founder & CEO of Siegerman & Company which was established in 1983. For over 30 years Siegerman & Company has provided a host of accounting, tax, and payroll services. Several years ago clients began asking about direct deposit. It became clear that small business need the same level of payroll service medium and large businesses demand. With our easy to use payroll portal, any size business can quickly run their payroll and know that employees will receive their money, payroll taxes will be paid, and payroll tax returns will be automatically filed.