2023 list of engineering firms in the Austin area is open to all firms with local offices. The list is ranked by engineering billings for the Austin office. Clients can be anywhere. Billings include projects in various stages from planning to completion, a cycle that often spans multiple years. Engineering services affect all aspects of community development from land and infrastructure to designing next-generation facilities. Data is gathered from ABJ surveys. Only firms that responded to requests for information are considered. The Austin area includes Travis, Williamson, Hays, Bastrop and Caldwell counties.