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

DUSTIN THORNTON

Survey Group Manager
Kalamazoo, MI

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Bill Aamoth

Testing Group Manager
Grand Rapids, MI

JAKE STOCKING

Testing Group Manager
Holland, MI

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Jesse Reed

Testing Group Manager
Kalamazoo, MI

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DEnnis Snyder

Testing Group Manager
Ypsilanti, MI

Tracy Hutchinson, P.E.

Senior Project Manager
Civil Engineering Group

Michael Stork

Project Manager
​Geotechnical Group