Abstract: A computer-implemented system for managing the underwriting, quoting and binding by an insurance company of an excess casualty insurance policy for an insured having a primary insurance policy with a primary insurance limit amount. The system selects and stores at least one standard industrial classification code ("SIC code") associated with the insured and a primary carrier name or multiple carriers associated with the primary insurance policy. A plurality of SIC code records corresponding to a plurality of SIC codes are stored in a database. Each of the SIC code records are linked to underwriting guidelines established and filed by the insurance carrier. These criteria include guidelines related to minimum premiums, hazard rating, underwriting authority, and referral criteria. Primary insurance carrier public bureau rating records are also stored in the database.