Founded in 2001, NOVA is considered to be one the industry’s leading political and non-profit providers of data solutions. NOVA takes a client first approach, building customized data solutions for each client’s specific goal and mission. There is no self-service opt-out or deletion form, and no email address is listed \u2014 the policy only gives a postal address and phone number in Ashburn, VA for questions, plus generic "unsubscribe" links at the bottom of marketing emails. Since the company says it may share or sell your information to third parties for marketing, expect to send a written request by mail (or call 703.793.3220) and follow up, as no response timeline is promised.