Kayne Anderson Energy Infrastructure Fund, Inc. is a closed-end equity mutual fund launched and managed by KA Fund Advisors, LLC, and co-managed by Kayne Anderson Capital Advisors, L.P. It invests in U.S. public equity markets, focusing on stocks of energy-sector companies, primarily energy-related master limited partnerships. The fund was formed on June 4, 2004, and is domiciled in the United States.