Consultant WSP has continued its US spending spree with the acquisition of building services engineer Flack + Kurtz for up to £17.5m.

Like Cantor, which WSP bought for £8m last week, Flack + Kurtz has considerable experience in the high-rise sector. Employing 300 staff, its principal offices are in New York, San Francisco, London and Hong Kong. It recently opened other offices in Paris and Seattle.

The company made profit before tax of £1.2m on a turnover of £23.2m in the year to 31 December 1999. Net assets at that date amounted to £37.3m.

Its major projects include the Petronas Towers in Malaysia, the World Financial Centre in New York, Canary Wharf in London and the Olympic stadium in Sydney.

The acquisition sees WSP making good its plans for international growth and follows purchases in Africa and the Far East in the past 12 months.