Check the background of this financial professional on FINRA's BrokerCheck.

William Diehl
Vice President Investments | Financial Advisor

Bill’s experience includes over 25 years servicing clients in various industries.  He spent 10 years as a manager with Allstate Insurance Company.  He then branched out as an entrepreneur, owning two businesses during the next 15 years.  As an Allstate Agency owner, Bill helped his clients achieve their insurance needs, which included Personal Life Insurance, Business Life Insurance, and Long Term Care Insurance.

With Gateway Investments, Bill assists clients with investment selection through education and direction to help them achieve their retirement goals.  

Bill is a graduate of Adelphi University in Garden City, NY and holds his Series 7 and Series 66 Licenses in Finance.  He also holds licenses in Life, Accident & Health Insurance, and Variable Life Insurance / Variable Annuities.

Bill lives on Long Island with his wife and two children.  He spends most of his personal time in his community where he is President of his local youth softball league.  He also coaches CYO Basketball for both his children.

390 Old Country Road, 2nd Floor
Garden City, NY 11530
Phone 516-240-1740   Fax 516-240-1799
Branch Phone 877-244-7162


Careers & Opportunities

Securities, insurance and advisory services offered through Royal Alliance Associates Inc., member FINRA/SIPC.  Gateway Investments is a marketing designation.

This communication is strictly intended for individuals residing in the state(s) of AL, AZ, CA, CO, CT, DC, DE, FL, GA, ID, IL, ME, MD, MA, MI, MN, MS, MO, NV, NH, NJ, NM, NY, NC, OH, OK, OR, PA, PR, RI, SC, TX, VA and WI. No offers may be made or accepted from any resident outside the specific states referenced.

Check the background of this financial professional on FINRA's BrokerCheck.