Mac Quarie Holdings

A holding company operating at 600 5th Ave, Mac Quarie Holdings sits two blocks east of the Public Library, blocks from Bryant Park. Founded to consolidate ownership across sectors, its footprint isn’t outward-facing, yet the address itself signals where decisions scale up. In this stretch of Midtown, corporate headquarters radiate decision-making power, and this address anchors a broad mandate. Real estate, energy interests, and financial asset management sit under one umbrella here, with oversight roles shaping strategy rather than retail service. The scale is quiet, the influence behind the scenes. Passing the lobby on weekdays, few realize how the floors above organize capital flows beyond eye level. Need a direct line? Dial (212) 548-6555 to reach the main desk. A map with step-by-step directions is available at this link, useful after the 5:30 p.m. crowd subsides.