Among those reporting is Hays, which will reveal figures for the year to 30 June. The company's shares suffered in June when it said growth was slowing. Analysts, including those at UBS, cut their profit forecasts. Hays recently had to admit that its construction division is one of those being investigated by the Office of Fair Trading.

Engineering specialist Morson reports its first results since the shares started trading on the stock exchange in March. In a 3 July trading statement, Morson said it had benefited in the first half of the year from strong performance in its core aerospace and defence sub-sectors, as well as "continued buoyancy" in the high growth rail market.

Staffline is another company which has already indicated that its results will be upbeat. In July, it said: "This performance has been driven primarily by our OnSite division, which manages the temporary recruitment function of clients and represents approximately two thirds of Group turnover."

Others reporting in early September are Robert Walters, Imprint, Corporate Services Group, ATA, OPD, Public Recruitment and Greatfleet.