Area of Focus
Technical accounting Financial consulting

William Andreoni

Asset Management Financial Consulting Leader
Area of Focus
Technical accounting Financial consulting

About William

William Andreoni serves as the national financial services leader for the technical accounting consulting (TAC) practice at RSM US LLP and the national co-leader for the fund administration practice (RSM Fund Services+). He also serves on RSM’s national asset management leadership team. In these roles, he develops and executes services in the private equity, asset management, venture capital and real estate markets, with a focus on bringing both holistic and integrated solutions to clients.  


William applies over 20 years of progressive financial services and fund experience to help private equity and asset management clients manage complex technical accounting and reporting responsibilities, fund consulting and administration needs, policy and procedure development, and accounting and reporting needs throughout the life cycle of their operating and fund entities. 

Early in his career, William worked at a Big Four firm, where he specialized in financial services, private equity and hedge fund audits. In 2007, he began working with a top 10 global fund administrator, where he assisted in leading and building out the financial and regulatory reporting practice for both hedge and private equity funds for over 10 years. William later joined a large global asset management firm, where he served as the head of business partnering, planning and performance for the Americas region, leading the coordination of cross-functional collaboration of operating and fund practice lines. He left this role in 2020 to lead RSM’s TAC practice for financial services and co-lead the launch of RSM Fund Services+.

William enjoys coaching and mentoring younger professionals and finding ways to position them to learn, grow, and be passionate about their roles. Outside of work, he and his family enjoy exploring the great outdoors, believing strongly that nature is a great way to stay grounded, especially in a digital world.

Professional affiliations and designations

  • Certified public accountant, Pennsylvania
  • American Institute of Certified Public Accountants
  • Pennsylvania Institute of Certified Public Accountants
  • CFA Institute Claritas Investment Certification


  • Bachelor of Business Administration, accounting, La Salle University