T. Duncan Spielberger

T. Duncan Spielberger, CPA, has a diverse range of work experience. They are currently working as the Director of Accounting / Assistant Controller at Mammoth Holdings, LLC. Prior to this role, they served as an Assistant Controller at Navigator Energy Services, where they focused on tracking and reporting investment capital. They also worked as a Senior Accountant at American Gypsum. T. Duncan Spielberger started their career as an Audit Associate at EY, where they were involved in public audits for various companies such as AT&T Inc., Sarofim, Fayez & Co., and Match Group, Inc. They also had an internship with EY in Assurance Services. Additionally, they have experience as a Fund Accounting Specialist at JPMorgan Chase Bank and as an Undergraduate Student Assistant at SMU Cox School of Business. They have also held roles at The Hain Celestial Group, Mr. Youth, and Ravinia Festival.

T. Duncan Spielberger, CPA has an extensive education history. From 2007 to 2010, they attended New Trier Township High School Winnetka for their high school education. T. Duncan then enrolled at Southern Methodist University - Cox School of Business from 2010 to 2014, where they earned a Bachelor's Degree in Accounting. During their time at Southern Methodist University, they also pursued a Minor in Economics from 2010 to 2014 at the Dedman College of Humanities and Sciences.

In 2011, Spielberger participated in a semester abroad program called Semester at Sea at the University of Virginia, where they studied various subjects but did not obtain a degree. T. Duncan returned to Southern Methodist University - Cox School of Business for further education, completing a Master's Degree in Accounting from 2014 to 2015.

Spielberger continued their academic pursuits and obtained a Master of Business Administration (MBA) from Southern Methodist University - Cox School of Business from 2023 to 2025.

In addition to their formal education, Spielberger has obtained several certifications. In 2018, they earned the Certified Public Accountant (CPA) certification from the Texas State Board of Public Accountancy. Furthermore, in 2019, they obtained a Graduate Business Analytics Certificate from Southern Methodist University - Cox School of Business.