At Nomax, our leadership team is composed of exceptional individuals who bring a wealth of experience, expertise, and passion to guide our company towards success. Led by Charles Voellinger Sr. as the Founder and CEO, and supported by dedicated professionals, our leadership team is committed to driving innovation, delivering quality products, and fostering a collaborative and fulfilling work environment. Get to know our accomplished leaders and their remarkable contributions to Nomax’s journey of growth and excellence.
Meet the Leadership Team at Nomax Inc.
Charles Voellinger, Sr
Founder and CEO
Charles Voellinger, Sr. is a chemist by trade and the founder of Nomax. He started the company in 1982 with his wife and three other partners. Charles has a B.S and M.S in Chemistry from St. Louis University and worked in chemical sales before devoting his attention full-time to Nomax. Charles is also a talented woodworker, and enjoys spending time in his workshop making furniture for his family and friends.
Pat Voellinger
Co-Founder and CFO
Pat Voellinger holds an MBA from the University of Missouri in St. Louis, a Masters in Mathematics from Northwestern University and a BA in Chemistry from St. Louis University. Before focusing full-time on Nomax, Pat taught accounting for 25 years at St. Louis Community College. At Nomax, Pat is responsible for financial analysis, budgeting and forecasting. Her contributions have been instrumental in Nomax’s growth and success. When she’s not crunching numbers, Pat enjoys playing golf, traveling and spending time with family.
Charles Voellinger, Jr
President of Nomax
Charles Voellinger has helped lead Nomax since 2011. After completing his undergraduate degree at Cornell University in Industrial Engineering and Operations Research and a M.S. of Engineering and a MBA from Northwestern University, Charles began his career in management consulting. As a consultant he worked with clients across a range of industries on issues such as growth strategy and operational improvement. In his most recent role before leaving to lead Nomax, Charles was a manager in at Bain and Company’s San Francisco office.
Cassie Ruppert
Director of Human Resources
Cassie Ruppert has over 15 years of progressive Human Resources experience. She holds a Bachelor’s in Business Administration from University of Missouri – St. Louis and a Master of Arts in Human Resource Management from Webster University. Cassie started her career at Lutheran Senior Services as a HR Assistant and progressed to a HR Manager with increasing responsibilities. In 2013, Cassie joined Stifel Financial as a HR Business Partner where she was responsible for employee relations for the company and eventually transitioned into a HR Project Manager role. Cassie joined Nomax in 2021.