Founder Profile
Jack Green
Last reviewed: 2026 · By Swet Parvadiya
Background
Jack Green co-founded Progressive alongside Joseph Lewis in 1937 with an interest in filling a gap in the auto insurance market. Like Lewis, he approached insurance from a business perspective rather than an actuarial one, recognizing an opportunity in a market segment most insurers treated as undesirable. His role in the early company focused on operational setup and securing the licensing and capital required to write auto policies in Ohio.
Founding Story
Jack Green co-founded Progressive Mutual Insurance in 1937 with Joseph Lewis. Together they built the company on the premise that high-risk drivers represented an underpriced and underserved market. Green helped establish the early claims operations and administrative infrastructure during Progressive foundational years as a small regional carrier. The willingness to insure nonstandard drivers gradually gave Progressive actuarial advantages as it accumulated loss data that mainstream carriers lacked, advantages that later powered the company analytical pricing model under Peter Lewis.