Sirius America’s head office is located in New York, NY. The head office serves as an underwriting office for our reinsurance and insurance lines of business. Many of our central functions are also based here. Our underwriting focus is Property, Casualty, Accident & Health insurance and reinsurance, and Surety insurance. Sirius America underwrites with a regional focus on the United States, Canada and the Caribbean.?New York is also the home of Sirius Insurance Agency, LLC and Sirius America Re Managers, LLC.