The Davey Tree Expert Company, also known as Davey Tree, is an American multinational employee-owned corporation that provides tree, utility, lawn care, and environmental consulting services in the green industry throughout the United States and Canada. It is the largest residential tree care company in North America and was founded in 1880 making it the first national tree care company. John Davey, its founder, is considered the father of the science of tree surgery and arboriculture. The company's core services include tree, utility services, large tree moving, commercial grounds management and consulting services. It has been employee owned since 1979 and is the largest employee-owned company in the state of Ohio and one of the top 20 largest in the United States. Davey is organized in two segments, Residential and Commercial, and Utility.