GMS has been generating accounting software specific to not-for-profits since 1980. The GMS Accounting and Financial Management System is not a traditional commercial accounting or government fund package adapted for not-for-profit use. It is a grant and contract accounting system. In later years, GMS created the GMS Revolving Loan Servicing System for use in clients' offices that administrated revolving loan and other lending programs. GMS is a privately held company and is an employee stock ownership plan (ESOP). Our headquarters is located in Kensington, Maryland (USA), with six employees working at that location. The rest of staff is located throughout the USA in different states.