Joseph Mamer is a financial advisor with Oppenheimer, holding Series 63 and Series 66 designations and bringing 41 years of industry experience. His prior roles include positions at Stifel Nicolaus & Co Inc, RBC Capital Markets, and A. G. Edwards & Sons, Inc. He also serves as trustee of a family estate, managing assets to provide scholarships for nieces and nephews. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, and charitable organizations. The firm offers a broad range of investment and consulting services utilizing both discretionary and non-discretionary approaches, with a notable portion of assets managed on a non-discretionary basis.

George Ebenhack is a financial advisor with Oppenheimer, holding Series 63 and Series 65 credentials and 53 years of industry experience. He has worked at Fahnestock & Co. Inc. since 2003 and previously at CIBC World Markets Corp. from 1997 to 2003. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a range of programs including asset management, consulting, and retirement services, employing discretionary and non-discretionary approaches across equity, balanced, and fixed-income portfolios.

Gregg Whelan is a financial advisor at Oppenheimer with 43 years of industry experience. He holds Series 63 and Series 65 licenses and has worked at firms including D.A. Davidson & Co., Raymond James & Associates, Wells Fargo Clearing, and Citigroup Global Markets prior to joining Oppenheimer in 2023. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, pooled investment vehicles, and IRAs. The firm offers a broad range of programs and advisory services across equity, balanced, and fixed-income portfolios, utilizing both discretionary and non-discretionary management approaches.

Aaron Chamberlin is a financial advisor at Oppenheimer with 32 years of industry experience. He holds Series 63 and Series 65 licenses and has previously worked at Stifel Nicolaus & Co., Wells Fargo Clearing, and A.G. Edwards & Sons. Chamberlin is also the trustee of the John Arnold Family Trust, a role he has held since 1998. Oppenheimer is a registered investment adviser and broker-dealer serving individuals, corporations, pension and profit-sharing plans, charitable organizations, and IRAs. The firm offers a range of discretionary and non-discretionary investment programs across equity, balanced, and fixed-income portfolios, with a notable focus on non-discretionary advisory assets and integrated custody services.