To date, generous ASTI donors have raised $2 million to facilitate local, affordable safety training for arborists across the nation.

ASTI Donor Profiles

Hear from ASTI supporters, originally profiled in TCI Magazine:

 A history of safety leads to Gamma Tree’s ASTI support.

"Tim Gamma has no problem re-membering the exact year his dad’s tree care company became a TCIA member. “It was the year I was born,” says Gamma, who now serves as president of Gamma Tree Experts, an accredited, 53-year member company out of St. Louis, Missouri. “I think we are one of the longest-time continuous member companies today. And that was pretty much the start of our company..."

ASTI Donors:

 Visionary ($100,000 to $500,000)