Lennar Corporation is a home construction and real estate company based in Miami, Florida. In 2017 the company was the largest home construction company in the United States after its purchase of CalAtlantic Homes. The company is ranked 154th on the Fortune 500 as of 2019. The company operates in 21 states and owns Rialto Capital Management, the sponsor of six private equity funds that invest in real estate and an originator commercial mortgage loans for securitization. The company also developed and retains ownership interests in 53 apartment communities. The name Lennar is a portmanteau of the first names of two of the company's founders, Leonard Miller and Arnold Rosen.