Spectrum Associates is a full-service, custom marketing research firm located in Avon, Connecticut. The firm was founded in 1986 by Eliot Hartstone, Ph.D. Over the past 23 years, Spectrum Associates has earned a local and national reputation for providing well-designed, accurate, timely, objective and actionable research services. Our clients value our services for both the high quality of the research and the insightfulness of our recommendations based on the research findings. Spectrum Associates has extensive experience designing and conducting qualitative & quantitative research studies for a wide range of clients and industries. Please click on an industry below to view a partial client listing for the specific industry. .