Coleman Engineering Principals
President / Geotechnical Operations
John Edlebeck joined Coleman Engineering Company in 1985 and is currently the President of the company and the Manager of the Geotechnical and Construction Materials Testing Operations. Mr. Edlebeck attended the University of Wisconsin – Eau Claire, with coursework in Geology. He completed his education at the Northeast Wisconsin Technical Institute in Green Bay, where he received his A.S. in Civil Engineering Technology.
Mr. Edlebeck’s career has been dedicated to geotechnical and construction materials testing, and he has worked on projects throughout the United States.
JEFF SJOQUIST, P.E.
Principal / Civil Engineering Operations
Jeff Sjoquist, P.E., joined Coleman Engineering Company in 1987. He was named the Operation Manager of Civil Engineering in 2008 and became a managing principal of the company in January 2012. Mr. Sjoquist is a 1985 graduate of Michigan Technological University, with a B.S. in Civil Engineering – Environmental / Water Resource Option. He is licensed in Michigan and Wisconsin. He is also a State of Michigan Certified Storm Water Operator and has Certifications in Construction and Industrial Sites.
KEVIN TREVILLIAN, P.E.
Principal / Civil Engineering &
Kevin Trevillian, P.E., joined Coleman Engineering Company in 2006 as a Project Manager in the Iron Mountain Civil Engineering group. He was named a principal in 2012. Mr. Trevillian is a 2001 graduate of Michigan Technological University, with a B.S. in Civil Engineering. He is licensed in Michigan and Wisconsin.
Mr. Trevillian is a member of the Iron Mountain/Kingsford Rotary Club and currently services as the Dickinson County Drain Commissioner.