My Team

I take customer service very seriously. So does my staff. Together, we are committed to providing exceptional customer service to all of our clients. If you need to schedule an appointment, make changes to your current accounts, submit a claim or request any other service, please let us know. We will respond promptly.

William Thomas Cassilly II

William Thomas Cassilly II

Associate Financial Advisor
Office 662-298-1818

Personal: Bill, a Tupelo, MS native, graduated from Mississippi State University in 2014 with a Bachelors Degree in Finance. He is currently pursuing a secondary degree from the University of Mississippi in Accountancy to prepare him for the CPA exam. He currently resides in Tupelo, MS.  

Professional: After graduating from Mississippi State, Bill began his career with Northwestern Mutual as an independent represenative in the Tupelo, MS office. Mid 2016, Bill began the transition to the Oxford, MS office where he partnered with Bryan Mathias to begin forming a team. Bill is investment licensed holding his Series 6 and Series 63 as well as life, accident, and health insurance licenses. 

Contact Bill for: 

  • Financial Planning Needs
  • Investment Research, Selection, and Allocation
  • Updating your Financial Goals

Angela A White

Office 662-844-8422 ext. 21

Rose M Mathias

Communication and Marketing Manager
Office 662-234-3181

Bryan C Mathias

Financial Representative

  • Office 662-298-1818
  • Fax 662-234-3959

To learn more about Northwestern Mutual Investment Services, LLC and its financial representatives, visit: FINRA BrokerCheck