William A. Franke, Co-Founder & Managing Partner at Indigo Partners, Phoenix, AZ — verified investor profile. See sector focus and contact routes.
William A. Franke is the co-founder and managing partner of Indigo Partners, a Phoenix-based private equity firm he established that specializes exclusively in air transportation. His investment thesis focuses on the ultra-low-cost carrier model within the aviation sector, targeting companies in geographies including the United States, Europe, and Latin America. Indigo typically executes large-scale, controlling investments rather than following standard venture capital check sizes, often leading deals to acquire majority ownership of airlines. Notable portfolio companies include Frontier Airlines in the U.S., Wizz Air in Hungary, JetSMART in Chile and Argentina, and Volaris in Mexico. Franke is widely recognized as a pioneer of low-cost air travel who previously chaired America West Airlines and served as a pre-IPO investor in Ryanair. He holds a distinctive point of view on transforming aviation through strategic leadership and has received honorary doctorates for his impact on the industry.
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