Contact a member of PPI’s Board of Directors, or get in touch with PPI at any one of our three Office Locations in Springfield, Branson, and Joplin, Missouri.  

PPI Board of Directors

  • Ms. Erin Parrish, PhD, President   [email]
  • Mr. Brandon R. Parrish, P.E., Vice President – Engineering  [email]
  • Ms. Rachel J. Goeke, P.E., Client Services Manager   [email]
  • Mr. Shane Rader, P.E., Drilling Services Manager   [email]
  • Mr. Don Nowack, P.E., R.G., Environmental Services Manager   [email]
  • Mr. Mike Foley, Construction Materials Testing Manager   [email]

Springfield, Missouri

4168 W. Kearney St.
Springfield, Missouri 65803
Ph.: (417) 864-6000

Branson, Missouri

10,000 Hwy. 160
Walnut Shade, MO 65771
Ph.: (417) 561-8395

Joplin, Missouri

3500 East 13th Street
Joplin, Missouri 64801
Ph.: (417) 624-2005  
Manager: Mr. Rick Hundley   [email]