Top concentrated stock management financial advisors in Gaithersburg, MD

Martin Depetris is a Series 66 registered advisor with Fidelity Investments, bringing six years of industry experience. His career includes roles at Bank of America, Merrill, H. Beck, Inc., Scottrade, and the University of Maryland University College. He works with Strategic Advisers LLC, a Fidelity Investments company that provides investment management and advisory services to retail and institutional clients. The firm utilizes a combination of proprietary fundamental research, quantitative analysis, and algorithmic portfolio construction to manage model portfolios involving mutual funds, ETFs, and ETPs.

Matthew Bacon is a CFP®-certified financial advisor with 14 years of industry experience. He is currently with Carmichael Hill & Associates, Inc and has prior experience at University Federal Credit Union and Cuso Financial Services, L.P. He is based in Gaithersburg, MD. Matthew is affiliated with MAI Capital Management, LLC, an enterprise firm managing $72.3 billion in assets as of May 31, 2026. MAI provides a range of services including discretionary and non-discretionary investment management, integrated wealth management, retirement plan consulting, and family-office services for individuals, families, sports professionals, trusts, and institutional clients.

Cornell Abod is the principal of Beacon Investment Advisors LLC in Gaithersburg, MD, holding a Series 65 designation and with 22 years of industry experience. He has been with Beacon Investment Advisors since 2003 and also owns C.P. Abod & Co., LLC, an accounting services firm, and Beacon RPC, LLC, a retirement plan consulting company. Mr. Abod dedicates a significant portion of his time to accounting and retirement plan consulting activities. Beacon Investment Advisors provides wealth management and discretionary portfolio management services to individuals, families, trusts, estates, corporations, and retirement plans. The firm’s investment approach centers on customized asset allocation guided by fundamental analysis and includes a range of securities and strategies tailored to client needs.

Mariah Lightfoot is a financial advisor at LPL Financial with eight years of industry experience. She holds the Series 66 designation and has worked at LPL Financial since 2019. Prior to that, she was with Mass Mutual Investors Services and Mass Mutual Life Insurance Company from 2017 to 2019. LPL Financial is an SEC-registered investment adviser and broker-dealer serving individuals, retirement plans, banks, corporations, and charitable organizations through a national network of investment adviser representatives. The firm offers a range of advisory programs, financial planning, and consulting services, utilizing both discretionary and non-discretionary management supported by proprietary and third-party research.

Robert Costello is a financial advisor at Transamerica Financial Advisors with 30 years of industry experience. He holds Series 63 and Series 65 credentials and has worked at several firms including Grove Point Investments, H. Beck, and Prudential. Outside of his advisory role, he is involved in rental property management. Transamerica Financial Advisors serves a wide range of clients including individual investors, pension plans, trusts, and corporations. The firm offers both advisory and broker-dealer services, utilizing proprietary and third-party model portfolios across discretionary and non-discretionary platforms.

Ethan Siekkinen is a CFP® and holds a Series 65 license with Plante Moran Financial Advisors. He has one year of industry experience and previously worked at J Wilson Wealth Management. Outside of financial advising, he has experience in the lawn care business with Rizzo Lawn Care. Plante Moran Financial Advisors serves a diverse client base including individuals, institutions, trusts, estates, and charitable organizations. The firm provides investment advisory, financial planning, and estate-planning services, utilizing a range of investment strategies and managing both discretionary and non-discretionary assets.

Stephen Harris is a financial advisor at Fisher Investments with a Series 65 designation and one year of industry experience. Prior to joining Fisher Investments in 2023, he worked for Fiba Basketball and East Stroudsburg University. Fisher Investments serves institutional and private clients worldwide, offering discretionary portfolio management across equity, fixed-income, and blended mandates. The firm utilizes a centralized investment process combining quantitative and qualitative research to construct diversified portfolios and provides sub-advisory and retirement plan services.

Jace Hart is a CFP® with nine years of industry experience and currently serves as a financial advisor at Rockwall Wealth Management. His prior experience includes roles at Leo Wealth, LPL Financial, and Fidelity Brokerage Services. Rockwall Wealth Management provides portfolio management, financial planning, and consulting services to individuals, trusts, plans, charitable organizations, and businesses. The firm emphasizes diversified, low-cost ETF model portfolios with a focus on tax efficiency, liquidity, and systematic macro tilts, offering both traditional and advanced investment strategies tailored to client objectives.

Barbara Brewer is a financial advisor at RBC Capital Markets with 20 years of industry experience. She holds a Series 66 designation and has been with RBC Capital Markets Corporation since 2008. RBC Wealth Management, a division of RBC Capital Markets, serves individual investors, institutional clients, pension and profit-sharing plans, corporations, and charitable organizations. The firm offers various advisory programs with discretionary and non-discretionary portfolio management, financial planning, custody, and brokerage services, tailoring strategies to clients’ Advisory Risk Profiles through a mix of in-house and third-party providers.

Chad Clay is the sole advisor at Glass City Capital Management, LLC in Maumee, OH, holding a Series 65 credential with seven years of industry experience. Before founding his firm in 2018, he worked as an investor and previously served for eleven years with the City of Springfield, Illinois Fire Department. His background includes experience as a firefighter and EMT. Glass City Capital Management is an independent, fee-only firm providing discretionary investment management focused on long-term capital appreciation for individuals and various entities. The firm emphasizes a concentrated, actively managed equity strategy built around a core “best ideas” approach, typically holding five to forty individual securities with a preference for large-cap companies.