Public sector services consultant Tribal Group has upped its interim dividend despite a slight dip in profits.Adjusted profit before tax, which includes various charges, was 7% lower at £8.5m in the first half of 2009 than the £9.1m achieved in the first half of last year. Management said the results were in line with expectations.Revenue rose 11% to £125.2m from £113.3m. Committed income levels rose to £217m at 30 June 2009, an increase of £78m (56%) since the beginning of the year. By the end of July the company had secured 83% of its planned revenue for 2009.The sales pipeline of qualified opportunities has thinned out some, however, and stood at £258m at the half year stage compared to £297m at the beginning of the year.The interim dividend has been increased by 9% to 1.85p.