Testimonials and Videos


"C1S is a full service engineering design and construction firm serving the industrial, commercial, and technology markets. Regardless of project size or renovation complexity, C1S will work with you to create a facility that achieves your business objectives. "


Julie Strong, C1S

Chief Executive Officer


"It affects our bottom line.  Leed certification equates to sustainability, gas savings, water savings, electrical savings, it's all a big deal.  People call us all the time, "How are you getting LEED certified and who are you using"?  I'd happily refer them all the time."

John Bracco, Frito-Lay

Principle Engineer


"Class One has been working with us since 2010.  They helped us with the tool install, design, engineering, and the base build equipment."


Joel Rhodes, Triquint Semiconductor

Facilities Engineer