The Christman Company Share: Construction - General Contractor The Christman Company Visit Website Request Info 2400 Sutherland Ave. Knoxville, TN 37919 (865) 546-2440 About Map About Formerly the Rentenbach Company, we are a general contractor serving the Knoxville region since 1946 in the healthcare, office space, K-12 and higher education, industrial, and hospitality sectors. What's Nearby? Distance: 5 10 15 20 25 50 mi.