Welcome to Specialty Aviation Underwriters, Inc. (SAU)

SAU is the aviation underwriting company for Old United Casualty Company also d/b/a Vantage Casualty Company in the State of California. Located in Merriam, Kansas, Old United Casualty Company has an A.M. Best A rating

SAU has two locations to serve you. The home office is in Birmingham, Alabama with a satellite office in Dallas, Texas. We operate through appointed agents throughout the United States.

As you navigate through this website, we hope you will find it easy to use and informative.