# Lexington Insurance Company > Lexington Insurance Company, a subsidiary of American International Group (AIG), is the leading provider of excess and surplus (E&S) lines insurance in the United States. It specializes in covering unique, complex, or high-capacity risks that typical admitted insurers are unable or unwilling to underwrite. The company operates primarily through wholesale brokers to provide property, casualty, and specialty coverages across various industries. - URL: https://optimly.ai/brand/aig-lexington-insurance - Slug: aig-lexington-insurance - BAI Score: 88/100 - Archetype: Incumbent - Category: Insurance