Tree Matrix Mission and Team

Improving Tree Preservation to Save Trees

Climate Change Mitigation

Trees must be preserved in the urban and suburban environments to help offset heat island affects, particulate pollution, and storm water sheet flow. Preserving mature trees in these environments will help to mitigate the impacts of global climate change.

Trees also add significantly to our quality of life through their aesthetics and unique interdependent nature. We can and should preserve trees whenever possible; Tree Matrix is an essential new tool for doing so.

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Meet the Team

Tree Matrix was created by Keith Pitchford, ISA certified arborist (Pitchford Associates, Washington, DC) to help solve two persistent problems related to trees in the landscape. The first is the challenge of predictable tree preservation, and the second is appropriate and sustainable landscape planting.

 
Keith is an ISA Certified Arborist and has 35 years of experience in arboriculture, including 20 years of running a successful tree preservation firm in Washington DC and Charlottesville, VA. He is a graduate of the Yale University, School of the Environment.
KeithPitchford
CEO / Founder
 
John has 25+ years of high-level systems analysis, database design, e-commerce and web application delivery. John is a graduate of the University of Virginia, and earned his MBA in Finance and Marketing from the University of Georgia.
JohnKeville
Technology
 
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Advisory Committee

Gary is a Professor of Urban Forestry, University of Minnesota. A leader in urban forestry and tree preservation studies since 1992.
GaryJohnson
Science Advisor
Holli Howard has spent close to 25 years focused on using the power of geospatial data to advance our understanding of physical world. With a majority of her career grounded in Washington, DC championing climate and urban forestry initiatives, she transitioned to Seattle to join Google Maps in 2018.
HolliHoward
Geospatial Advisor
Holli Howard has spent close to 25 years focused on using the power of geospatial data to advance our understanding of physical world. With a majority of her career grounded in Washington, DC championing climate and urban forestry initiatives, she transitioned to Seattle to join Google Maps in 2018.
JamesUrban
Science Advisor for Soils and Trees
 
Paul is a partner with Wolf/Josey Landscape Architects in Charlottesville, VA. He is dedicated to preserving existing trees in his landscape architecture work.
PaulJosey
Landscape Architecture Advisor
 
Andrew is a practicing consultant in Auckland, New Zealand with twenty years of tree preservation experience. He has a Ph.D. from the University of Canterbury in Christchurch, New Zealand.
Dr. AndrewBenson
Urban Ecophysiologist