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Meet Our Team

professional arboist in Seattle

Lead Arborist & Manager

Craig Bachmann

As a Certified Arborist, ISA Qualified Tree Risk Assessor, industry speaker and writer, and safety trainer, Craig is passionate about tree care. He is dedicated to elevating the profession of arboriculture and building the most trusted and capable arborist firm in the Seattle area.


Certified Arborist 


A Certified Arborist who cares deeply about tree preservation and sustainability, Tighe strives to help people grow closer to nature. He brings more than a decade of experience in tree care and landscape management. Tighe also enjoys mountaineering, champion tree hunting and nature photography. 

Tree133 Operations Manager

Operations Manager & Apprentice Arborist

Joanna Bachmann

Having supported the family business for several years, Joanna officially joined Tree133 in 2020. She wears many hats (or helmets) so you may hear from her in the office, meet her on a project as crew support or see her around town at community events.  

professional arborist in Seattle

Certified Arborist & Crew Lead


A highly skilled arborist and climber, Karsten is a Marine Corps veteran and a native of Indiana. He is a Certified Arborist and ISA Qualified Tree Risk Assessor. Karsten is also a very accomplished mountaineer. His proven technical expertise and leadership abilities are great assets to our team.

professional arborist in Seattle

Certified Arborist


Beyond being a Certified Arborist and ISA Qualified Tree Risk Assessor, Miles has an extensive background in horticulture and landscaping. He also has a tremendous enthusiasm for learning.We are excited to have Miles' help every day he works with Tree133.

Amstaff Rescue Dog

Shop Dog


Always at the ready in the office, around the shop or riding along in the truck, Jack brings enthusiasm and joy to every task. Born in Texas, he is a rescue from Seattle Humane Society.