Horizon Advisors | Houston Texas Personal Financial Planners Horizon Advisors is a privately owned, fee-only financial advisory firm. We are uniquely partnered with Maddox, Thomson & Associates, P.C., a related CPA firm. Maddox Thomson has been serving Houston's high-net worth community since 1985. Together, we offer coordinated tax and financial advice for individuals, families, and organizations. Horizon-advisors.com~Site InfoWhoisTrace RouteRBL Check