Gillig is an American manufacturer of buses, primarily known for producing transit buses used in public transportation systems. Founded in 1890 and based in Livermore, California, the company specializes in low-floor buses that provide easy access for passengers, including those with disabilities. The company offers various models, including the Gillig Low Floor and the Gillig BRT, which are designed for urban environments. Gillig buses are recognized for their durability, efficiency, and customizable features, making them a popular choice among transit agencies across the United States.