At least seven businesses with Orange County government contracts have given more than $4,000 to County Executive Steve Neuhaus' campaign account since he took office in 2014, exceeding a four-year limit county lawmakers set with the so-called Pay-to-Play Law.The contractors include SecureWatch24, a Manhattan-based company that is installing surveillance cameras and other security equipment in the Government Center as part of a $74 million overhaul and expansion of the complex.