Horizon Sign Company is a woman- and veteran-owned business in St. Louis, MO, founded by Megan and David Greathouse. We serve as true business partners for our clients by drawing on our combined backgrounds in marketing, public relations, operations, and manufacturing in both corporate and government sectors.

We’re a full-service sign and graphics company that focuses on creating custom signage to help organizations drive growth. Any sign company can make a sign. Horizon Sign Company makes the ideal sign or graphic to suit your organization’s specific marketing and communication needs. Whether it’s a temporary sign or a lasting visual for your organization, we will ensure it is high-quality, on-brand, and impactful.