Operating profit at listed recruitment company CPL increased by 27 per cent to €4.2 million in the half year ended December 31st last, although the company sounded a cautious note on future performance. Revenues were up 28 per cent at €143 million compared to the same period in 2010, although trading conditions remain “challenging”. CPL benefited from a 16. 3 per cent increase in fees from permanent placements.