Contact a member of PPI’s Management Team, or get in touch with PPI at any one of our four Office Locations in Springfield, Branson, and Joplin, Missouri, and Tulsa, Oklahoma.  

PPI Management Team

  • Mr. Brad R. Parrish, P.E., President   [email]
  • Mr. Brandon R. Parrish, P.E., Vice President – Engineering  [email]
  • Dr. Erin Parrish, PhD, Vice President – Administration   [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]
  • Mr. Jeremy Mitchell, Branson Laboratory Manager [email]
  • Mr. Rick Hundley, Joplin Laboratory 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]

Tulsa, Oklahoma

5616 S. 122nd East Ave., Ste. I
Tulsa, Oklahoma 74146
Ph.: (918) 872-9898