G4S revenues boosted by London 2012 Olympics The company raised €600m in the bond markets last month, which will be used for "general corporate purposes" and to pay down debt. Looking forward, the group expects growth to "continue to improve" this year. The first half of this year will be impacted by "contract phasing and the US government market" but "margins will improve in the second half." G4S's proposed £5.2bn bid last year for Danish cleaning and catering company ISS would have transformed it into the world's second biggest employer with 1.2m staff. But shareholders took fright at the size of the deal and the amount of debt the company was taking and refused to back the management. In March G4S revealed it incurred £55m of costs related to the failed bid. This caused pre-tax profits to fall from £335m to £279m.