all rights reserved to Willmark Engineering, PLC - 2007

About Willmark Engineering Willmark Engineering, PLC is a Professional Civil Engineering firm located in Ashland, Virginia. The company was established in 2007 by Mark Williams. With over 15 years of experience in the civil engineering field, Mr. Williams has worked on geotechnical, municipal, commercial and residential design projects. Willmark Engineering is a firm committed to making each project a success while providing design services with honesty, integrity and quality.