Lawrence E. Maddox CFP®, CPA


A third generation Houstonian and Lamar High School graduate, Larry attended the University of Texas at Austin. He received his BA in Economics in 1975 and an MBA with a concentration in finance and accounting in 1977. Larry worked for Peat Marwick Mitchell & Co. and Deloitte & Touche, performing audit and tax work while earning his CPA. He left public accounting to become controller of a small, family-owned oil and gas service firm.

In 1981, Larry formed his own CPA firm and in 1985, Joe Thomson joined him to create Maddox Thomson & Associates, P.C. Larry became a Certified Financial Planner™ in 1988. In 1999, Larry and Joe formed Horizon Advisors, LLC. In 2007, Larry was accepted for membership in the National Association of Personal Financial Advisors (NAPFA).

Larry works with clients in all facets of wealth management: helping clients define personal goals, objectives, and strategic plans, along with collaborating with our team of professionals and other partners to provide income and estate tax planning, investment portfolio design and implementation, and legacy and planned giving advice, as well as addressing other client-specific concerns.

Larry married his high school sweetheart, Donna Magill, in 1975. They have one daughter. Larry is a member of St. Michael’s Catholic Church and the Houston Country Club. He has been active in a number of local charities, including the American Cancer Society, The Kinkaid School and the Houston Texans Charity Golf Classic. In his free time, Larry enjoys spending time with his family and playing golf.