Other arborists preserve trees growing on construction sites. They mark where roots begin and design temporary enclosures to protect them during building. An arborist can do this kind of work without ever climbing a tree. The Bureau of Labor Statistics does not collect employment data on arborists. But according to the International Society of Arboriculture, there are more than 12,000 certified arborists in the United States and thousands more who aren t certified.
Most arborists work for tree care companies.
Others work for State and local governments, caring for trees on roadsides and other public properties. And some work for themselves as private consultants. Earnings increase with experience and responsibility. Arborists who diagnose and treat specialty trees can earn more. Still, like most arborists, Jeff didn t choose his career for the money although he says the field can be financially rewarding to people who are good at their jobs.