Experience Makes all the difference

The Diesing/DeGroot/O'Malley Wealth Management team is a customized wealth management practice on the East End of Long Island. We focus on individuals, small to medium-sized businesses, and their owners with investible assets typically between $500,000 and $10 million. Currently, we assist over 250 families with all aspects of their financial life, actively managing over $330 million in client assets. Our practice is based on consistent contact with our clients, listening to their needs, concerns, and designing customized solutions to meet their unique goals.

Jay A. Diesing

Senior Vice President - Wealth Management
Wealth Advisor
631-287-5827
jay.diesing@ubs.com
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I am one of a small number of UBS financial advisors who have earned the designation of Wealth Advisor. I joined UBS in 2004 in the Southampton, NY office. Before joining UBS, I was the branch manager of Merrill Lynch’s Southampton office. Prior to joining Merrill Lynch in 1993, I was affiliated with Chemical Bank as Vice President and manager of the short- and medium-term finance unit in NY. While at Chemical Bank, I also held corporate finance positions in Sydney, Australia, and Houston, TX. I graduated Phi Beta Kappa with a degree in economics from Washington & Lee University in 1981.


Registered States:
AZ, CA, CO, CT, DC, DE, FL, GA, IL, MA, MD, ME, MO, MT, NC, NH, NJ, NY, OH, OR, PA, RI, SC, TX, UT, VA, VT, WA, WV, WY


Erik B. DeGroot

Vice President - Wealth Management
631-287-5821
erik.degroot@ubs.com
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I provide comprehensive wealth management planning for a diverse clientele, both locally and nationally. Prior to joining UBS in 2008, I managed wealth for clients of Tucker Anthony and then RBC Wealth Management. My first financial experience came working for Columbia University, managing the finances of the NIH and private grants for the University’s Molecular Genetics division. After graduating from Chaminade High School in Mineola, NY, I attended New York University and graduated Summa Cum Laude from St. John’s University.


Registered States:
AZ, CA, CO, CT, DC, DE, FL, GA, MA, MD, ME, MT, NC, NH, NJ, NY, OH, PA, RI, SC, UT, VA, VT, WA, WV, WY


Ryan M. O'Malley

Account Vice President
Financial Advisor
631-287-5824
ryan.omalley@ubs.com
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My passion as a financial advisor is fueled by my devotion to see my clients reach their financial goals.  By using my knowledge of the financial industry, I am able to assist others in making educated decisions.  My expertise focuses on wealth management which includes, retirement planning, lending, College 529 plans, and insurance planning. 

While attending Marymount Manhattan College in Manhattan, I became interested in finance.  After graduating with a B.A. in Accounting, I completed three highly competitive internships at Merrill Lynch, Smith Barney, and Lehman Brothers.  After respected roles at Lehman Brothers and Deutsche Bank, I joined UBS Financial Services in March 2011.  

During my free time I enjoy cycling with the Sag Harbor Cycling Company, and training for triathlons.  


Registered States:
AZ, CA, CO, CT, DC, DE, FL, GA, MA, MD, ME, MT, NC, NH, NJ, NY, OH, PA, RI, SC, TX, UT, VA, VT, WA, WV, WY


Jane R. Lubben

Client Service Associate
631-287-5811
jane.lubben@ubs.com


Registered States:
FL, MD, NH, NY, SC