Click on one of the people below to find out more information.
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- Isringhausen Imports
- sales@isringhausen.com
- 877.364.6090
We believe that every person who walks through our doors deserves attention, honesty and respect, including our employees. By working together in this way, we become more than a team; we become a family. Our belief is that if our employees function as a family, that family will extend its reach to our customers. Â
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- Geoff Isringhausen
- Dealer Principal
- geoff@isringhausen.com
- 217.528.2277
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.
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- Anies Humaideh
- General Sales Manager
- anies@isringhausen.com
- 217.744.8580
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.
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- Luke Isringhausen
- Sales Manager
- luke@isringhausen.com
- 217.744.8535
As the son of dealership founder Rob Isringhausen, Luke acquired a passion for fine automobiles at an early age. He began his career at Isringhausen Imports in high school as a car detailer and service driver, eventually advancing to sales. As sales manager, Luke genuinely enjoys pairing Porsche enthusiasts with exactly the right vehicle and strives to uphold the principles taught to him by his dad: integrity, honesty and fairness.
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- Mark Dresch
- Finance Manager
- mdresch@isringhausen.com
- 217.744.8550
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. Â He is also proud to hold a Bachelor of Science in Environmental Science from the University of Oklahoma.
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- Sean Oliver
- F&I Manager
- soliver@isringhausen.com
- 217-744-8596
With Isringhausen since 2009
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- Mike Custer
- Sales Associate
- mcuster@isringhausen.com
- 217.744.8587
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.
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- Geoff Isringhausen Jr.
- Sales Associate
- geoffjr@isringhausen.com
- 217.744.8544
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.
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- Joe Isringhausen
- Sales Associate
- josef@isringhausen.com
- 217-744-8577
With Isringhausen since 2019
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- TJ Mathiot
- Sales Associate
- tj@isringhausen.com
- 217-744-8563
With Isringhausen since 2020
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- Carl Mott
- Service & Parts Director
- cmott@isringhausen.com
- 217.744.8570
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.
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- Anthony Hofgren
- Service Manager
- ahofgren@isringhausen.com
- 217.744.8589
Anthony began his career at Isringhausen in 1999 as a Mercedes-Benz repair technician. In 2007, he became dual-certified as a Mercedes-Benz/Porsche technician. In 2017, Anthony was promoted to Service Manager, a position he still holds.
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- Gary Rogers
- Service Advisor
- gary@isringhausen.com
- 217.744.8574
With Isringhausen since 1993.
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- Zac Parrish
- Service Advisor
- zparrish@isringhausen.com
- 217-744-8588
With Isringhausen since 2017