Founded by Brian Eckersley and James O'Callaghan in 2004, Eckersley O'Callaghan is a structural engineering practice with offices in London, Manchester, New York, San Francisco, Los Angeles, Paris, Milan, Hong Kong, Shanghai, Delhi and Sydney.

The firm employs engineers, designers, modellers and technicians, working across facades, structures and digital design.

Pictured above is a project that the studio consulted on.

Eckersley O’Callaghan is featured in the Dezeen Jobs Top Companies 2026 list, highlighting studios that set new standards in workplace culture, inclusivity, wellbeing and professional growth. Find out more about the initiative here.