Memberships American Institute of Certified Public Accountan (AICPA) National professional association for CPAs in the United States click here Connecticut Society of CPAs (CSCPA) Statewide professional membership association exclusively for Certified Public Accountants. Online classifieds, continuing education, educational trust fund ... click here Hamden Chamber of Commerce The Hamden Chamber of Commerce helps businesses thrive and contribute to this community. We empower all Hamden businesses with customized marketing and development solutions to meet their unique needs. click here