Synergy Insurance Group / Allstate Agency Share: Insurance Synergy Insurance Group / Allstate Agency Visit Website Request Info 9700 Kingston Pike Suite 1 Knoxville, TN 37922 (865) 691-9077 LinkedIn About Map About Everyone knows Allstate from the cool television commercials, but we offer so much more. We would love to share some of that information with you. What's Nearby? Distance: 5 10 15 20 25 50 mi.