Christopher Walker serves as Vice President for the Northeast Region at David Allen Company, Inc. since August 2010. In addition, Christopher holds the position of Executive Board Advisor for the National Tile Contractors Association (NTCA) and has been involved with various committees, including serving as Chairman of the American National Standards Institute A-108 and the U.S. Technical Advisory Group for International Standards Organization TC-189 since 2009. Christopher is also a voting member of the Tile Council of North America Handbook Committee and has contributed to the NTCA Methods & Standards Committee as Past Chairman. From January 2015 to January 2024, Christopher served on the Board of Directors for Associated Builders and Contractors. Previously, Christopher was Vice President at Port Morris Tile & Marble Corp. from 2002 to 2010. Christopher holds a degree from the University of Iowa.