Kent, Ohio – The Davey Tree Expert Company is pleased to announce the appointment of Dr. Andrew Koeser to the Davey Institute as a research scientist.
“Andrew brings an exceptional combination of scientific expertise, industry experience and a passion for applied research that aligns with the goals of the Davey Institute,” said Zane Raudenbush, manager of research operations, the Davey Institute. “His ability to turn research into practical solutions will be an incredible asset to our employees, clients and the green industry as a whole.”
Koeser joins Davey with more than 20 years of experience in arboriculture, urban forestry and applied tree research. He worked at the International Society of Arboriculture’s headquarters for five years, ending as science and research manager.
Most recently, he served as a full professor at the University of Florida, where his research focused on practical challenges facing arborists and urban foresters, including tree biomechanics, risk assessment, root systems, tree establishment, storm resilience and urban forest management.
In this role, Koeser will support the development of a Southeast Research Center in Florida while also maintaining a research program at Davey’s SEED Campus in Kent, Ohio.
Koeser earned a bachelor’s degree in forestry from the University of Wisconsin-Stevens Point and his master’s degree and doctorate from the University of Illinois.

The Davey Tree Expert Company provides research-driven tree services, grounds maintenance and environmental and utility infrastructure consulting for residential, utility, commercial and environmental partners in the U.S. and Canada. Established in 1880 and headquartered in Kent, Ohio, Davey has over 12,000 employees who create and deliver sustainable solutions. Davey continues to grow through expertise with the SEED Campus, its newest commitment to training, research and safety. Become part of the Davey legacy by applying today and join one of the top ten largest employee-owned companies in the U.S.