The following are among the many organizations that have worked with Trees for Guelph in the past to support our efforts:

• Blount Canada Ltd.
• Elliot Coach Lines
• Grand River Conservation Authority
• Guelph-Wellington Rotary Club
• Rotary Club of Guelph
• McNeil Consumer Healthcare
• Ontario Trillium Foundation
• Onward Willow – Better Beginning, Better Futures Neighbourhood Group
• Rogers Cable
• Upper Grand District School Board
• Wellington Catholic District School Board
• TD Friends of the Environment Foundation
• The City of Guelph
• The Co-operators
• Two Rivers Neighbourhood Group
• University of Guelph