Lillibridge Healthcare Services operates as the property management and leasing subsidiary of Ventas (NYSE: VTR), an S&P 500 real estate investment trust. Founded in 1998, the company manages and leases medical office buildings within Ventas's outpatient medical portfolio across the United States. The company focuses on medical office buildings strategically located on or near hospital campuses and medical centers. Lillibridge's portfolio encompasses 366 outpatient medical buildings totaling over 18 million square feet across 35 states. The company serves approximately 1,200 hospital tenants and 2,100+ physician tenants through partnerships with over 100 health system clients. Ventas completed the acquisition of Cogdell Spencer in April 2012, integrating its 72 medical office buildings and employees into the Lillibridge Healthcare Services platform, which positioned Ventas as the largest owner of medical office buildings in the United States at that time. Since 2016, Lillibridge has deployed over $500 million in capital improvements to its medical office portfolio. The company's management structure includes on-site property teams supported by centralized leasing and asset management functions. Lillibridge has maintained recognition in the Grace Hill Kingsley Excellence Awards' Elite 5 for four consecutive years through 2026, placing it among the top five medical office real estate operators for tenant satisfaction. In 2019, the company partnered with PMB Real Estate Services on the Desert Medical Plaza project, and in 2025, achieved ENERGY STAR certifications for 75 properties.