Meanwhile, United Technologies Corp. saw its overall profit margin go up 15 percent to $3.1 billion on revenues of $42.7 billion. UTC Fire & Security was expanded beyond integrator Chubb in 2005 with the acquisitions of fire-systems maker Kidde and security software firm Lenel. Overall, the fire and security group had revenues of $4.3 billion in 2005, a 32- percent gain.