Workhorse Group Inc., a technology company, engages in design, manufacture, and sale of zero-emission commercial vehicles in the United States. The company offers electric and range-extended medium-duty delivery trucks under the Workhorse brand; and HorseFly Unmanned Aerial System, a custom-designed purpose-built all-electric drone system. It also provides Metron, an air delivery application that tracks the performance of various the vehicles deployed. The company was formerly known as AMP Holding Inc. and changed its name to Workhorse Group Inc. in April 2015. Workhorse Group Inc. was founded in 2007 and is headquartered in Loveland, Ohio.