FF Quadraat from FontFont

Top to bottom: FF Quadraat Regular, Italic, FF Quadraat Sans Regular, Italic

Tim Brown, writing for Typekit:

On close inspection, the Quadraat superfamily’s icy demeanor – sharp angles, blocky cuts, stems that appear to have melted and refrozen – might seem eccentric, but these traits are systematic and subtle. The result is a professional text typeface.