OnSource is a provider of an Inspection-as-a-Service (IaaS) product for property and casualty (P&C) insurance carriers. Its platform offers inspection tools that help users to prepare basic estimates, appraisals, verify current property or scene condition and deliver superior customer service, without leaving their desk, enabling businesses to personally collect and submit photos and videos of damage for property, vehicle claims, and underwriting using a smartphone or digital camera. OnSource was founded in 2011 and is headquartered in Braintree, Massachusetts.