Purple Onion Catering Co. is based in Northern Virginia and serves events throughout the local area including Virginia, Washington D.C. and Maryland. As members of the International Special Events Society (ISES), International Caterers Association (ICA) and Special Event Sites Marketing Alliances (SESMA), the Purple Onion Catering Co. is always up to date on the latest trends, often being the trendsetters themselves. They are well-known for both their catering and event design expertise for weddings, corporate and social events.