Goldman Sachs Realty Management (formerly known as Archon Group) is a real estate investment service and asset management firm that provides portfolio management and financing services to commercial property owners and investors worldwide. The firm's offerings include accounting, legal consultation, and IT services. The division also provides mortgage origination and specialty financing. The company manages a property portfolio that spans North America, Europe, and Asia; property types include office buildings, industrial facilities, multifamily residences, and retail spaces. A subsidiary of Goldman Sachs, Archon Group's primary client is Whitehall Street Real Estate Funds, also part of the Goldman Sachs family.