Underground Services, Inc., SoftDig, is an experienced, full-service professional subsurface utility engineering (S.U.E.) company that provides a complete range of S.U.E. services throughout the United States, including the innovative SoftDig non-destructive air/vacuum excavation system for locating underground utilities. Underground Services, Inc. is dedicated solely to subsurface utility engineering, allowing us to commit our full resources to our S.U.E clients.