Your wedding is no time to experiment with untested businesses. How many weddings do they do a year? Ask for at least five vendor referrals. Vendor referrals, from other professionals in the area, are usually more reliable than bridal referrals. Caution: Do NOT work with any business that receives referral fees or commissions from another. Ask about professional organizations to which they belong. (NOTE: while belonging to an association is important, realize that there are some unprofessional organizations and associations and often their only requirement is paying dues). If claiming "We are voted #1," check out the Association that gave the certification. Inquire about required licenses, insurance and health permits (if they are in the food industry).