Every active capital allocator in U.S. office— tracked, structured and searchable inside CapitalStack.
Office real estate investors own, develop, and reposition workplace buildings, from central business district towers to suburban and medical office parks. The largest public owners include Boston Properties (BXP), Vornado Realty Trust, SL Green Realty, Kilroy Realty, and Cousins Properties, while Hines, Brookfield, and Tishman Speyer run large private and mixed office platforms. CapitalStack profiles each office investor's mandate, target markets, check size, and deal format, alongside recent deal signals and verified contacts, so sellers and brokers can reach active buyers rather than a static list.
1,488 office real estate investors tracked on CapitalStack.
Fund closes, acquisitions, new mandates and leadership moves in office— the latest market intelligence, curated.
Law firm Greenberg Traurig expanded its office footprint at One Vanderbilt in Midtown Manhattan, signing a 10.5-year lease for an additional 33,477 SF on the 33rd floor, bringing its total occupancy to 133,365 SF. This lease renewal and expansion signal sustained tenant demand for premium Class A office space in Manhattan's CBD, particularly from professional services firms, and demonstrates landlord SL Green's ability to retain and grow anchor tenants.
Soros Fund Management is marketing the landmarked Argonaut Building, a 140,000-square-foot Manhattan office asset at 224 West 57th Street in Midtown, for approximately $100 million. The property is currently fully occupied by Open Society Foundations (Soros's grant-making group) under a lease through 2042, with retail tenant TD Bank on the ground floor, and presents potential for residential conversion post-sale.
A joint venture of FarmView Ventures, GreenBarn Investment Group, and Rithm Capital sold a 189,000-square-foot Class A office building in Arlington, Virginia for $52.7 million, nearly double the $27.6 million acquisition price from September 2024. The JV's value-add strategy of completing $6 million in renovations and securing 10 office leases (bringing occupancy to 83%) demonstrated successful repositioning in the post-pandemic office market.
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