Property adviser DTZ posted a 44% increase in group revenue to £446mln (EUR 561mln) up from £310mln (EUR 390mln) for the same period in 2007, in its preliminary results for the year ended 30 April 2008. The increased revenue was achieved through the impact of acquisitions such as Donaldsons and Barnicke as well as ongoing diversification and globalisation, the company said in its statement.