The engineering group’s global income came in at £1.03bn for the year to 31 March, an increase of 3.9% on the previous 12 months.
Despite an extremely competitive global operating environment, operating profit for the period was positive at £24m.
Philip Dilley, Arup Group Chairman, said: “It is a significant milestone that comes with winning and delivering great projects such as Kunming Airport in China, the Fehmarnbelt Fixed Link between Germany and Denmark and the Second Avenue Subway in New York.
“While we are happy to have broken £1bn, turnover is not a goal the firm strives to meet.
“We remain focused on the true metrics of success – employing fantastic people and delivering top quality projects.”