DETWEILER, HERSHEY & ASSOCIATES, P.C. - Key Persons


Bruce Thomas - Shareholder

Job Titles:
  • Shareholder
Bruce has been with Detweiler Hershey since 1985. His attention to detail and quiet demeanor put our clients at ease. His patient approach when addressing complicated issues, like compliance work, has endeared him to many of our non-profit clients in particular. Bruce also served as the past Board Chair at the Indian Creek Foundation. As the firm's quality control partner, clients can expect strong technical skills, savvy analysis and a calm approach to problem solving from him. In his spare time he enjoys traveling, golf, sports, reading and collecting sports related memorabilia. Did we mention he also loves the Pittsburgh Steelers? Certification Certified Public Accountant Education B.S. in Accounting from Eastern Mennonite University Associations Member of AICPA Member of PICPA Graduate of Indian Valley Chamber of Commerce Community Leadership Institute Graduate of The Rainmaker Academy Enterprise Worldwide Member Experienced in… Non-Profit Education Manufacturing Construction & Real Estate

Jim Rittenhouse - Shareholder

Job Titles:
  • Partner
  • Shareholder
As the son of a farm family in Franconia Township, Jim is known for his outstanding work with family businesses and also has particular knowledge in family farm preservation. His office is adorned with dozens of farm toys and portraits depicting farm life hang on its walls. Jim blends his agrarian roots with a caring personality to offer common sense advice, influenced by years of technical training and practical experience. Jim has been with Detweiler Hershey since June of 1984. He currently serves on the Board of Directors of Harleysville Bank, Peace Proclamation Ministries International, and Albanian Christian Education Foundation. Additionally, he serves as Finance Ministry Chairman for Salford Mennonite Church. In his leisure time, Jim helps to manage the family farm which began in 1852 and is now in its seventh generation. Certification Certified Public Accountant Certified Valuation Analyst Master Analyst in Financial Forensics Education B.S. in Accounting from Eastern Mennonite University Associations Member of AICPA Member of PICPA National Association of Certified Valuation Analysts Enterprise Worldwide Member Experienced in… Retail Non-Profit Education Construction & Real Estate

Marc Derstein

Job Titles:
  • Partner

Michael Mazza

Job Titles:
  • Partner