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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 or see her around town at community events.  

Karsten - Tree133

Certified Arborist & Field 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.

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Certified Arborist 


With more than 11 years in arboriculture, Jacob has held leadership positions at several well respected tree companies in the Seattle and was an arborist for the University of Washington. He is also an accomplished sailer having been a UW Navy Midshipman.

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Shop Dogs

Jack Dog & Charlie Girl

In the shop, on the truck, or chilling in the office, these pups bring enthusiasm and joy to every activity. Jack Dog is a rescue from Texas who came to us via Seattle Humane Society. Charlie Girl was taken in by the Seattle Animal Shelter and fostered before joining our pack. 

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