Zipper Geo Associates
Geotechnical and Environmental Consulting
Principal Geotechnical Engineer, CFO
Thomas Jones
Dave Williams
Sean W. Donnan
John Zipper
Principal Engineering Geologist
Principal Geologist
Chuck Cacek
Tanner Wagoner
Jeff Tinklepaugh
Kaelin Newman
Bryan Fowler, Staff Geologist
Kendra Pivaroff-Ward
