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Our Offices

Where to Find Us

MSET operates two offices serving clients across Illinois, Wisconsin, and Indiana — backed by a full on-site soils laboratory.

MSET South Elgin office entrance
Headquarters Soils Laboratory
South Elgin, Illinois
Primary Office & Full-Service Laboratory
410 Nolen Dr, South Elgin, IL 60177
On-Site Laboratory Full-service soils & construction materials testing laboratory — supporting geotechnical investigations, pavement design, and materials compliance.
Photo coming soon
Wisconsin Office
Genoa City, Wisconsin
Regional Office Serving Wisconsin Clients
1045 Williams Rd, Genoa City, WI 53128
Regional Coverage Our Genoa City office extends MSET’s reach into southeastern Wisconsin, providing local support for site investigations, construction testing, and materials compliance.

Our Team

Reach the right person directly — whether it’s a project inquiry, scheduling, or billing question.

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William D. Prigge, P.E.
President
wprigge@msetinc.com
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Michael H. Prigge, P.E.
Sr. Geotechnical Engineer
mprigge@msetinc.com
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Bob Gay, P.E.
Sr. Geotechnical Engineer
bob@msetinc.com
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Jeffery Stotz
Laboratory Manager
jstotz@msetinc.com
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Melissa Janik
Finance Director & Human Resources
mjanik@msetinc.com
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Ingris Sandoval
Sr. Finance Manager
ingris@msetinc.com
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Elizabeth Barton
Scheduling
(331) 327-0505 eburton@msetinc.com
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Robin Wilkening
Marketing Coordinator
robin@msetinc.com