ISA and Vermeer continue OneTree Partnership

ATLANTA, Ga. — ISA is pleased to announce that Vermeer, a manufacturer of industrial and agricultural equipment, will continue to provide support through ISA’s OneTree Program as a distinguished partner.

The OneTree Program is ISA’s corporate sponsorship program designed to bring together companies dedicated to improving the community by promoting the professional practice of arboriculture. OneTree partners provide both financial and non-financial support that allows ISA to advance its mission to foster a greater worldwide awareness of the benefits of trees.

“We appreciate Vermeer’s commitment to investing in our industry by maintaining their OneTree sponsorship,” said Caitlyn Pollihan, the executive director and CEO of ISA. “With their support, ISA can continue to have a global impact by supporting arborists and tree workers who in turn help trees and the community.”

Established in 1948, Vermeer distributes products globally and is headquartered in Pella, Iowa, United States. Vermeer serves the utility installation, environmental, surface mining, and forage markets domestically and internationally.

“Partnering with ISA over the years has been incredibly important to Vermeer and our dealership network,” said Trevor Koolmees, the tree care, rental and landscape sales manager with Vermeer. “Tree care workers and arborist alike turn to Vermeer to get important work done. In partnering with ISA and supporting the equipment, gear and training necessary to equip people with the tools and education they need to succeed.”

Through its OneTree relationships, ISA is able to provide arborists with programming, services, and research to better equip them to serve and educate the greater public, and advance the profession as well as the tree care industry worldwide. Additionally, the OneTree program helps to address critical environmental issues, impact decision and policy makers, spread valuable education and research while also staying on the cutting edge of industry trends, innovation and technology.

For more information about the ISA OneTree Program visit the ISA sponsorship program page or contact For information on Vermeer, please visit

ABOUT ISA          

The International Society of Arboriculture (ISA), headquartered in Atlanta, Ga., U.S., is a nonprofit professional organization dedicated to promoting the importance of arboriculture and educating the public about the significance of trees and the value of their proper care. As part of ISA’s advancing the arboriculture profession, it offers the only internationally‐recognized certification program in the industry, including ISA Certified Arborist ®. For more information about ISA and Certified Arborists, visit

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