Chamber of Commerce go Results Found: 2 Button group with nested dropdown Greater Sumter Chamber of Commerce Greater Sumter Chamber of Commerce 32 E. Calhoun St. Sumter SC 29150-4371 (803) 775-1231 Sumter Black Chamber of Commerce Sumter Black Chamber of Commerce 301 S Main Street Sumter SC 29150 (803) 8034066377 Mark Your Calendar View All Events