PNW-ISA furthers its mission to foster a greater appreciation of trees and promote the professional practice of arboriculture by partnering with the Tree Research and Education Endowment (TREE) Fund. With the support of donors and organizations like PNW-ISA, the TREE Fund provides:

  • Funding for scientific research into critical urban tree care issues
  • Funding for arboriculture education programs
  • Scholarships for aspiring arborists

PNW-ISA holds an annual auction benefiting the TREE Fund during the Annual Training Conference. We donate an item to the TREE Fund Gala Raise Your Hand for Research held annually at the ISA Conference. We also help Tour des Trees riders meet fundraising goals.

Visit for the latest news and updates on how the organization is working to sustain the world's urban forests.

Support TREE Fund

Amazon Smile

You can give to TREE Fund while you shop. The TREE Fund is a registered charity with AmazonSmile—Amazon’s philanthropic program that allows shoppers to direct 0.5% of their purchase total toward a charitable organization. Shop to support TREE Fund now.


You can donate funds directly to TREE Fund or view more ways to give.