WHEELING, Ill. - The Care of Trees family of companies recently announced that Pioneer Tree Experts of Malvern, PA, has joined the organization. Pioneer is now called Pioneer the Care of Trees and is considered a sister office to the recently opened Philadelphia regional office, called Alpine the Care of Trees.

Certified arborist Bill O'Toole, president of the 30-year-old Pioneer, will remain with the company as a district manager. "I am honored that the Pioneer team decided to join The Care of Trees," said Scott Jamieson, president of The Care of Trees family of companies. The organization has now expanded its presence in the Northeast and Mid-Atlantic states.