Officers

William (Bill), a U of A civil engineering graduate, has been in the construction industry since prior to graduating from college and has been with The Ashton Company since 1978. Bill is a Professional Engineer in Civil Engineering, registration number 15622 and a Registered Land Surveyor, number 16622.

William R. Vail, PE, RLS
President/CEO

Doug joined The Ashton Company in 1989 after many years of working for other construction firms and owning his own business. Doug is a U of A graduate and Professional Engineer in Civil Engineering, registration number 26324.

Douglas J. Humphreys, PE
Vice-President

Brian has been with The Ashton Company since 1977 and progressed up through the ranks from a heavy equipment operator apprentice. Having this broad based experience empowers Brian to know the "ins and outs" of all aspects of construction.

Brian Andrews
Vice-President

Gary joined The Ashton Company in 1989 and oversees the Mining and Heavy Industrial Construction. Gary progressed up through the ranks specializing in shutdown and major rebuild work in power plants and smelters across Arizona and New Mexico as a superintendent and project manager.

Gary Engman
Vice-President

Shawn, a graduate of the University of Southern Colorado in 2002 and a Professional Engineer in Civil Engineering, registration number 47656, began his career at The Ashton Company upon graduation. Starting as a Field Engineer and progressing to Superintendent and now Project Manager, Shawn has experience in both heavy highway and heavy industrial projects.

Shawn Silvester
Vice-President

Clint joined The Ashton Company in 1996 and graduated from the Operating Engineers Apprenticeship Program in 2000. While in the program, he received the Outstanding Apprentice Award. Clint began working as a heavy duty field mechanic and is now the Equipment Manager overseeing the maintenance, repair and replacement of the equipment fleet.

Clint Schweigert
Vice-President
Tower
TAA Airport Tower, 1948
Student Union
U of A Student Union, 1971
Parking Structure
City/State Parking Structure, 1985