Meet the team
Management
Geoff Isringhausen
Dealer Principal
Geoff Isringhausen
Dealer Principal
About
Geoff earned a Bachelor of Science degree in Mechanical Engineering from the University of Illinois at UC in 1982. After working for a refined petroleum pipeline shipping company in Atlanta, GA, Geoff began his automotive career in 1984 by joining his brother Rob at Isringhausen Imports. At that time Isringhausen Imports was a pre-owned operation specializing in European and, even more specifically, German vehicles. Geoff was the fourth employee and through the years helped preside over the dealership's growth and many changes. Although Rob has passed on, Geoff continues his brother's legacy of treating customers and employees as they wish to be served: with dignity and respect. Geoff is now the owner/operator of Isringhausen Imports and oversees the BMW, Mercedes-Benz, Porsche and Volvo sales and service operations.
Cory Libka
General Manager
Anies Humaideh
General Sales Manager
Anies Humaideh
General Sales Manager
About
Anies Humaideh joined Isringhausen Imports in 1987 with a passion for unique and interesting automobiles. That passion, along with a commitment to outstanding customer service, allowed him to ascend to the role of general sales manager, where he oversees the Porsche team and other Isringhausen sales team members.
Lachlan Collins
Sales Manager
Mark Dresch
Finance Manager
Mark Dresch
Finance Manager
About
Mark Dresch has worked in the automotive industry since 1995, half of that time at Isringhausen Imports. For most of Mark's tenure, he has served as finance manager. His primary responsibilities include loan and lease acquisition for buyers and maintaining compliance with all federal and state regulations pertaining to auto lending. He is also proud to hold a Bachelor of Science in Environmental Science from the University of Oklahoma.
Sean Oliver
F&I Manager
Sean Oliver
F&I Manager
About
With Isringhausen since 2009
Geoff Isringhausen Jr.
Special Interest Vehicles Sales Manager
Geoff Isringhausen Jr.
Special Interest Vehicles Sales Manager
About
Geoff Isringhausen Jr. has been with Isringhausen Imports since 2009 and has been in Porsche sales since 2010. Geoff specializes in all things Porsche and specifically in the buying and selling in our high-end pre-owned division. Geoff Jr. and Geoff Sr. race Porsche Caymans with the Porsche Club of America and have been involved with racing since 2011. Geoff studied at California Baptist University and has a Bachelor of Science in Business Administration.
Sales
Mike Custer
Sales Associate
Mike Custer
Sales Associate
About
Mike Custer enjoys the distinction of being Isringhausen's first full-time employee, having joined the company in 1982 as our very first employee. He's held multiple positions over the years, including finance manager. Mike, a lifelong Springfield resident, now shares his love of German automobiles as a Certified Porsche Brand Ambassador.
Joe Isringhausen
Sales Associate
Joe Isringhausen
Sales Associate
About
With Isringhausen since 2019
TJ Mathiot
Sales Associate
TJ Mathiot
Sales Associate
About
With Isringhausen since 2020
Service & Parts
Carl Mott
Service & Parts Director
Carl Mott
Service & Parts Director
About
Carl Mott began his career at Isringhausen Imports in 1999, working in the service wash bay. He's held various positions over the years, eventually ascending to Parts Manager for Porsche and other brands. Carl is proud of the enduring friendships he's forged with Isringhausen coworkers and customers alike.
Zach Parrish
Service Manager
Zach Parrish
Service Manager
About
With Isringhausen since 2017
Logan Gedaminski
Service Advisor