Smith-Midland Corp through its subsidiaries invents, develops, manufactures, markets, sells, and installs precast concrete products for primary use in the construction, highway, utilities, and farming industries. The firm's customers are general contractors and federal, state, and local transportation authorities. Its products include Slenderwall, JJhooks, Softsound, Sierra Wall and Easi set. A substantial portion of the company's business is derived from local, state, and federal building projects. The company generates revenues predominantly from the sale, leasing, licensing, shipping, and installation of precast concrete products for the construction, utility, and farming industries.