
Paul Hans Thompson
Managing Consulting Arborist
About Paul Hans Thompson
Based in Washington State, Paul has devoted his professional career to urban forest management and arboriculture, offering decades of expertise in veteran tree care, risk assessment, tree protection, and litigation support. At Urban Forestry Services | Bartlett Consulting, he leads projects ranging from large-scale transit assessments to community college redevelopment and conservation appraisals. Paul's work bridges practical tree care with academic depth, having contributed to the Low Impact Development manual and provided arboricultural guidance for municipalities, schools, non-profits, and infrastructure agencies. His leadership ensures that trees are evaluated and protected through all phases of planning, construction, and restoration, with a firm commitment to ecological and structural stewardship.
ISA Certified Arborist PN-1838A, International Society of Arboriculture, since 2000
ISA Tree Risk Assessment Qualified, International Societyof Arboriculture, since 2009
Registered Consulting Arborist, American Society of Consulting Arborists, RCA 509, since 2011
PA1 & PA6A Pesticide License, National Proficiency Tests Council, National Agricultural Centre, Warwickshire, UK, since 1996
Quantified Tree Risk Assessment (QTRA)
ISA Tree Risk Assessment Qualified, International Societyof Arboriculture, since 2009
Registered Consulting Arborist, American Society of Consulting Arborists, RCA 509, since 2011
PA1 & PA6A Pesticide License, National Proficiency Tests Council, National Agricultural Centre, Warwickshire, UK, since 1996
Quantified Tree Risk Assessment (QTRA)