David Mayes is a CFP®-certified financial advisor with 21 years of industry experience. He is currently affiliated with Mackensen & Company, Inc. and is part of Three Bearings Fiduciary Advisors, Inc., a firm based in Hampton, NH. Three Bearings Fiduciary Advisors provides personalized, fee-only financial planning and discretionary investment management to a diverse client base, including individuals, trusts, charitable organizations, and municipalities. The firm employs a core-satellite investment approach with a focus on strategic asset allocation, offers a broad range of ancillary services such as municipal investment management and tax preparation, and maintains a fiduciary, non–performance-fee compensation structure.

Zachary Zwick is a CFP® with seven years of industry experience, currently serving at Three Bearings Fiduciary Advisors, Inc. since 2019. His prior roles include positions at JB Capital, LLC and Johnson Brunetti, as well as a four-year tenure at the University of Connecticut. Three Bearings Fiduciary Advisors offers personalized, fee-only financial planning and discretionary investment management to a diverse client base, including individuals, trusts, municipalities, and small businesses. The firm employs a core-satellite investment approach focused on passively managed index funds and ETFs, provides comprehensive ancillary services such as tax preparation and municipal investment management, and emphasizes detailed, fiduciary-driven reporting.