Our Team

At Driesenga & Associates, there's never a stone left unturned. We're a close-knit team of professionals that champion collaboration and innovation.
​Each of our backgrounds offer unique specialties and insights, making for a truly well-rounded group of experts.

Jim Henning, P.E.

President, Director of Materials Testing

Dan Driesenga, P.E.

Founder, Chairman
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Douglas A. Snyder

Vice President of Sales

John m. Tenpas, P.E.

Director of Civil Engineering
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Randy Pail, P.E.

Director of Geotechnical Engineering

Alan E. Dahl, P.S.

Director of Surveying

Vince Murray

Accounting Manager

Adam Peterson

Materials Testing Manager
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WE DID THAT

Marc Lohela, P.S.

Survey Group Manager
Holland, MI

Tracy Hutchinson, P.E.

Senior Project Manager
Civil Engineering Group

MICHAEL STORK

Project Manager
Geotechnical Group

JAKE STOCKING

Testing Group Manager
Holland, MI

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Jesse Reed

Testing Group Manager
Kalamazoo, MI

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Bill Aamoth

Testing Group Manager
Grand Rapids, MI

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DEnnis Snyder

Testing Group Manager
Ypsilanti, MI