Clark is an active member of the Atlanta Rotary Club and the Harvard Clubs of Georgia and New York City. He is an elected Deacon and adult Sunday school teacher at Second Ponce de Leon Baptist Church in Atlanta, and former president of his hometown Chamber of Commerce. He also serves on several boards, including Central Atlanta Progress, Associated Insurance Administrators, Inc. and The Martha C. and Harry Jeffcoat Foundation. In 2005, Clark was recognized by the Atlanta Business Chronicle in its annual “40 under 40” list for his contributions and leadership in his company and community.