Slay Engineering Company is an engineering consulting firm that has been serving customers since 1982. The firm serves the commercial, educational, government, civic, land development, religious, residential and retail industries. It offers civil engineering, design, traffic signalization and site grading services. Slay Engineering Company provides services for streets, roadways, water tanks, and storm water drainage and wastewater collection systems. It offers consulting services in the areas of government permitting, feasibility study and cost estimating. The company provides aerial mapping, construction staking, boundary line investigation, and topography and tree surveying services. Its projects include Dub Farris Athletic Complex, Gustafson Athletic Complex and John Marshal High School. Slay Engineering Company maintains a location in San Antonio.