Area of Focus
Private client services Family office services

Bill Bijesse

Principal, Global Family, Office Market Leader
Area of Focus
Private client services Family office services

About Bill

William Bijesse is a principal and global family office market leader for RSM US LLP. He is a proven and trusted advisor to families looking to establish a family office and to leaders of current family offices.


William has more than 25 years of investment experience and has served as advisor to many of the leading family offices in the world. His established and unique network and industry credibility guide his work at RSM and position his clients for operational excellence. As an advisor, William finds tailored solutions to help minimize conflict and promote a healthy and productive future for families and family offices. 

Through his years of family office experience, William has gained unique insight on governance and best practices, asset allocation, after-tax performance, as well as the ideal approach to investment and deal flow. He leverages his experience to serve RSM family office clients as well as those clients in the process of deciding if a single-family office is the best solution for their family. William is grateful for the opportunity to combine his deep family office experience with RSM’s vast global tax, audit and consulting experience. 

Prior to joining RSM, William worked in private wealth management, served as a chief investment officer and as a family office specialist for many years. He began advising billionaire families in 1995. William graduated from the United States Military Academy at West Point where he spent a summer leading a tank platoon in Germany and a summer studying at USARI, the United States Army Russian Institute. He was elected by his peers to serve as his cadet company honor representative and to serve as an honor board president by his fellow members of the honor committee at West Point. He earned the Army Commendation Medal and the airborne and air assault badges during his active-duty military service, rising to the rank of captain. 

William is a member of RSM’s VALOR employee network group, which is dedicated to encouraging the success of veterans and military service members. Outside of work, he enjoys investing, reading, physical fitness and traveling with his wife and their son and daughter. 

Professional Affiliations and Designations

  • Harvard Club of New York City 


  • Bachelor of Science, United States Military Academy
  • Master of Business Administration, Harvard Business School  
Area of Focus
Private client services Family office services