Our Leadership

President and CEO
Larry R. Pettit, CPA, CITP, CGMA

Larry R. Pettit is the creator of Carillon ERP and founder of Carillon Financials Corporation.  Pettit has extensive experience in the accounting and information technology consulting industry dating back to 1976. His previous positions include Senior Audit Manager at Arthur Andersen & Co. and Senior Manager in the IT Division of KPMG Peat Marwick.  He has also held various management positions in an international distribution company and a manufacturing company. During his time in these various positions, Pettit saw time and time again the shortcomings and laborious processes inherent in ERP systems. Keeping in mind the shortcomings and flaws of other ERP systems, he began to develop Carillon ERP.  His goal was to create a comprehensive and user-friendly system that could be enhanced as much as needed, but still easily upgraded.

Pettit graduated from Canisius College in Buffalo, New York, with a Bachelor of Science in Accounting. He is an active member of the AICPA and the Texas Society of Certified Public Accountants. He is also a certified Microsoft Small Business Specialist and an AICPA Certified Information Technology Professional.Additionally, Pettit is the managing shareholder of Pettit Consulting, P.C., which is a member of the Center for Public Company Audit Firms, the AICPA, and the Texas Society of CPAs.

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Senior Manager
Mary Casteel

Mary Casteel has been with Carillon since the beginning of Carillon 22 years ago.  She has been an integral part in designing, supporting, implementing, and managing Carillon ERP.

Casteel graduated from The McCombs School of Business at The University of Texas at Austin with a Bachelor of Business Administration in Finance.  She has extensive knowledge in client and server-based systems.  In addition to all the desinging and developing she has done for Carillon ERP, she has helped design and develop a Claims Administration System for an insurance corporation and a POS System for a retail corporation.

Want to ask Mary a question? Email her now.
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