Our Partners

TREE Fund Lead Partners

Crown Partners

Since 1928, Asplundh has been dedicated to safe and efficient utility vegetation management services. Asplundh is a proud supporter of the TREE Fund’s mission and programs, especially the Utility Arborist Research Fund.
Bartlett Tree Experts
Bartlett Tree Experts was founded in 1907 and is the world’s leading scientific tree and shrub care company. At Bartlett, we believe in beauty through science – and research has been the key to our success.
Corteva Agriscience™, the agriculture division of DowDuPont™, is the only major agriscience company completely dedicated to agriculture. The purpose of Corteva Agriscience™ is to enrich the lives of those who produce and those who consume, ensuring progress for generations to come.
For nearly 140 years The Davey Tree Expert Company has been rooted in corporate responsibility—demonstrating environmental, social and economic stewardship in everything we do. Davey is proud to partner with organizations such as TREE Fund to advance tree stewardship and societal well-being. Davey is TREE Fund’s 2019 Education Partner.
Lewis Tree Service Logo with Tagline

The Lewis family of companies is a high integrity, employee-owned enterprise employing approximately 4,500 team members throughout the U.S. and Canada. Founded in 1938, Lewis celebrated 80 years as leaders in the vegetation management industry. Lewis serves its customers and communities with three independent service lines: utility line clearance and storm restoration, primarily through Lewis Tree Service, Inc.; railway and highway vegetation control, primarily through Wilderness USA, Inc., and residential and commercial tree care, primarily through Carolina Tree Care.
The International Society of Arboriculture (ISA)
The International Society of Arboriculture (ISA) is focused on research and the dissemination of results to contribute to a world with healthier trees, sustainable communities, and a green economy.

Platinum Partners


Gold Partners

Canadian Tree Fund
Florida Chapter ISA

Green Manufacturing

Illinois Arborist Association
Indiana Arborist Association

Pacific Northwest ISA

West Coast Arborists, Inc.

Silver Partners

CN Utility Consulting, Inc.
ISA Texas

Urban Forest Nursery Inc.
Wisconsin Arborist Association

Wright Tree Service

Bronze Partners