Located on the upper West Side of New York City, The Interchurch Center is a 19-story 600,000 square feet building which houses offices and agencies of various ecumenical, educational and philanthropic organizations. Newmark has been managing The Interchurch Center since its opening in 1960, providing many services to the building and its tenants, such as Security, Front Desk Reception, Fire/Life Safety Management, Engineering, Heating and Ventilation and Air Conditioning (HVAC), Nightly Cleaning, Porter Service, Lost & Found. Newmark also assists the President of The Interchurch Center with Leasing of office space. All tenants must be 501(c)3 not-for-profit entity and must use building's telephone and internet access system.