Staff

Scott D. Baker

Scott D. Baker, Principal and Founder, has worked with trees for over 30 years. He has extensive experience with site management issues, building codes, site design, and construction. Scott utilizes his past experience as a successful developer to help bridge the gap between development and trees. He has extensive knowledge of tree biology and has partnered with several international scientists to help implement new tools and techniques in an effort to advance the use of science and technology in arboriculture. Scott is respected as a speaker and educator in tree diagnostics, tree preservation, and urban forestry issues. He is a Registered Consulting Arborist (#414), Certified Arborist (#PN-0670A), a Certified Tree Risk Assessor (#145), and a WSDA Licensed Commercial Pest Control Consultant (#79897).

Scott is a regular participant and fundraiser for the Tour des Trees www.tourdestrees.org - a 500+ mile annual bike ride to raise money for the TREE Fund (Tree Research and Education Endowment Fund) www.treefund.org. He is an avid cyclist and skier and enjoys sailing and climbing of all kinds.

Professional Memberships:
American Society of Consulting Arborists (ASCA)
http://www.asca-consultants.org/

Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA)
http://www.pnwisa.org

Western Chapter of the International Society of Arboriculture (WCISA)
http://www.wcisa.org

International Society of Arboriculture (ISA)
http://www.isa-arbor.com

Sean Dugan

Sean Dugan, Senior Associate, specializes in tree biology and diagnostics, pest control, and municipal tree ordinances. He has experience working as an expert witness in timber trespass cases and those requiring appraisals of landscapes. He has over 12 years experience in design and implementation of landscape plans, native plant restoration, and site inspection and evaluation. He holds a Bachelor of Science degree in Environmental and Forest Biology with an emphasis in Wildlife Management, and a Masters in Forest Resources from the University of Washington. He is a Registered Consulting Arborist (#457), a Certified Arborist (PN-5459A), a Certified Tree Risk Assessor (#0149), and is a Licensed Pesticide Applicator in the State of WA (#66733).

Sean is passionate about photography and has taken many of the pictures on this website. Other possible Sean sightings: fishing, family BBQs, local hiking trails, in a tree, or sitting on the porch with his lovely wife.

Professional Memberships:
American Society of Consulting Arborists (ASCA)
http://www.asca-consultants.org/

Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA)
http://www.pnwisa.org

International Society of Arboriculture (ISA)
http://www.isa-arbor.com

Holly Iosso

Holly Iosso, Associate, has over a decade of experience in the landscape industry, including landscape design, installation, maintenance and environmental education. She specializes in tree identification, inventory and restoration in environmentally critical areas. Holly holds an associate of science degree in environmental horticulture and a bachelor of science degree in landscape architecture/landscape ecology from University of California, Davis. She is a Certified Arborist (PN-6298A) and Certified Tree Risk Assessor (#456).

Holly keeps busy swimming a lake, walking a trail, or painting on a canvas. She also spends countless hours chasing a toddler.

Professional Memberships:
Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA)
http://www.pnwisa.org

International Society of Arboriculture (ISA)
http://www.isa-arbor.com

Dorothy Landeen

Dorothy Landeen, Office Manager, helped Scott with the startup of this company in 2001. She has a diverse background which includes 20 years in accounting, a B.A. degree in biology, and experience in health care, business startups, and habitat restoration.