OptoGlo Solar Signs

OptoGlo, Inc. is a venture-backed startup based in Leominster, Massachusetts, specializing in solar-powered signage solutions.

Founded in 2014, the company focuses on integrating backlit illumination with solar energy to offer innovative, all-in-one solar sign packages. OptoGlo has developed patent-pending solar illumination technology that enables the creation of thin, solar-powered materials capable of lighting up at night. The company's product range includes print-ready solar signs, custom signs, A-frame signs, window signs, backlit signs, wayfinding solutions, solar street signs, and eco-friendly outdoor advertising signage. OptoGlo emphasizes clean energy and sustainability in its offerings, catering to various outdoor applications. With a small, dedicated team, the company has secured $11.9 million in funding to support its growth and reported an annual revenue of $8 million in 2025.