Convention and Expo Management Services Share: Equipment RentalsEvent PlanningParty Rental and Supplies Convention and Expo Management Services Visit Website Request Info 6225 N Lamar Blvd. Austin, Texas 78752 (512) 354-1280 About Map About CEMS is a full service convention decorating group. We specialize in creating memorable and successful convention, expos, special events and corporate gathering. What's Nearby? Distance: 5 10 15 20 25 50 mi.