Chubb Group of Insurance Companies has more than 80 years of boiler & machinery underwriting experience, Chubb is well-known throughout the United States and Canada as a leading boiler & machinery insurer. Chubb is ranked by A.M. Best as the third largest underwriter of boiler & machinery insurance in the United States. Due to technological advances and deeper coverage awareness, more clients are finding that boiler & machinery insurance is an essential component of any well-rounded insurance program. Chubb?s Loss Control inspection services are an inseparable and invaluable aspect of boiler & machinery insurance in the United States and abroad. Risk assessment, jurisdictional inspections and loss prevention are provided by our dedicated, board-certified inspectors/risk engineers throughout the U.S. and Canada. The loss prevention services that are available can include infrared thermography and oil and vibration analysis as well as other nondestructive tests.