Founded in 1988, The Lightstone Group is one of the largest privately held real estate companies in the United States. The company s portfolio of assets includes more than 22,000 multifamily units, over 680 hotels and nearly 20 million square feet of office and retail properties. The Lightstone Group s subsidiary, Prime Group Realty Trust, owns, manages, leases, develops, and redevelops industrial properties. The company also owns and operates Park Avenue Funding Beacon, which is a real estate funding company. The Lightstone Group maintains a work force of more than 14,000 employees. The company additionally owns Prime Retail and Prime Group Realty Trust. The Lightstone Group operates under the Extended Stay Deluxe, Extended Stay America, Homestead Studio Suites, StudioPlus and Crossland brands, as well as provides leasing services.