Support services and building group Interserve has posted a 4% rise in turnover from £913.6m to £951.2m for the six months to 30 June 2009

Pre-tax profit was up by 19% from £33.7m to £40m and the group said the results had been boosted by its work in the UK public sector and the Middle East. Net debt fell 26% from £115.4m to £85.1m.

Adrian Ringrose, chief executive, said: “We remain confident in our prospects and expect to deliver robust near-term performance and sustain our long-term growth.”