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24/7 Emergency Tree Service

Professional tree management for your home and property

Seattle Tree Care is a family owned and operated company specializing in the thoughtful care of the Pacific Northwest’s largest living things. Since 2006 we have been committed to providing exceptional customer service and high quality tree care in the Seattle region. You can trust us to help you make the best decisions about your trees and property, and to safely and efficiently perform all your tree service needs.

Meet Our Crew

Peter Gruenwoldt

Seattle Tree Care Owner and Lead Arborist

ISA Certified Arborist PN-6127A , Tree Risk Assessment Qualified 

Peter’s love for trees runs deep and started young. Growing up in a small Western Washington rural community, Peter started learning about trees at an early age alongside his father, a U.S Forest Service Forester and ISA Certified Arborist. Peter’s initial exposure to Forestry was on long hikes with his father cruising old growth timber stands and collecting data about spotted owl habitat. Climbing to the highest vantage point has always been second nature to Peter, and he spent many days of his youth rock climbing in the Pacific Northwest, Alaska and California. Peter studied Environmental Science at the University of Redlands, and then combined his love of climbing with his love of trees, and became a proficient and skilled tree climber working for several different companies in the Seattle area.

Knowing that there was an extra level of depth, sustainable practices and customer service he could provide, Peter founded Seattle Tree Care in 2006. A husband and father of three, Peter will always put your safety and the enjoyment of your property first. Peter is committed to creating the maximum benefit that trees and people share and is grateful to work with your amazing Seattle trees while practicing the art and science of responsible tree care.

Favorite Tree: Alpine Larch (Larix lyallii)

Kelsey Gruenwoldt

Seattle Tree Care Owner and Business Manager

Kelsey is a fourth generation Seattle native with a great appreciation for this beautiful region. She earned her BA from the University of Washington in the Program on the Environment (2003), an interdisciplinary degree that included Forestry classes. In her studies of old growth forests she learned Tree Identification, Stand Management and Tree Assessment. Post University Kelsey worked as the Director of a local environmental company with a mission to help sustainable businesses grow. When her first child was on the way in 2007, Kelsey decided it was time to help build her own family business. She took her HR, bookkeeping and managerial skills, and put her energy into shaping and growing Seattle Tree Care.

To this day Kelsey loves making sure that the Seattle Tree Care team is at the ready to provide an outstanding experience for your tree care, because a lifetime spent in Seattle means Kelsey knows that when the sun shines we all want to enjoy the great outdoors!

Favorite Tree: Noble Fir (Abies procera)

Hannah Swanson

Operations Manager & Associate Arborist 

Hannah was raised in the mountains of Colorado and fell in love with trees at a young age. She moved to Seattle to attend Seattle Pacific University where she graduated with a degree in Ecology. At Seattle Tree Care she uses her knowledge of trees and the environment to help the greater Seattle area with their tree care needs. In her free time, Hannah enjoys hiking, cycling and traveling the world.

Favorite Tree: Pohutukawa (Metrosideros excelsa)

Ethan Childs

Project Manager & IPM Specialist

ISA Certified Arborist PN-8393A 

Ethan moved to Seattle from New York State where he earned a B.S in Biology from SUNY Cortland in 2012. Upon completion of his bachelor’s degree he earned a M.S degree in Forestry and Natural Resource Science from the University of Arkansas at Monticello. Ethan has a wide range of experience leading and working on projects centered on mycology, climate change, invasive insects, fire and forest ecology. He developed a love of trees by exploring the forests of the beautiful Adirondack mountains. In his free time Ethan enjoys a range of outdoor activities including hiking, fishing, and traveling.   

Favorite Tree: Sycamore (Platanus occidentalis)

Patrick Boyle

Project Manager

ISA Certified Arborist PN-8918A, Tree Risk Assessment Qualified

Patrick Boyle was born in Roseburg, Oregon and graduated from Oregon State University with a BS in Horticulture and Crop & Soil Science in 2014. Patrick started his horticulture journey as a section grower for Smith Gardens. Later, he became a landscape technician with Turf’s Up, where he specialized in Integrated Pest Management (IPM) and providing care to residential landscapes in the northern Puget Sound. Patrick entered the arbor estimating field with Monarch Tree Services and is excited for his transition to Seattle Tree Care, where he can assist the wonderful people of Seattle with all their tree care needs. In his free time, Patrick enjoys hiking, gardening, camping, and caring for his pets (cats, dog, chameleon, and chickens).

Favorite tree: Paperbark maple (Acer griseum)

Jason Harmon

Project Manager

ISA Certified Arborist PN-8359A, Tree Risk Assessment Qualified

Bio coming soon.

Favorite tree: 

Christina Cameron

Operations Assistant

Bio coming soon.

Favorite Tree: Quaking Aspen (Populus tremuloides)

Danielle Palmer-Friedman

Marketing Coordinator & Receptionist

Danielle was raised in southwest Florida (you may notice her roots showing in her favorite tree pick!) and moved to the greater Seattle area as a teenager. Ever since, she’s felt at home among the snow capped mountains and miles of lush green trees that surround the city. She graduated from the University of Washington with a degree in English Literature, and while she may be new to the world of tree care, she has almost a decade of customer service experience and looks forward to working with the Seattle Tree Care family. In her free time, Danielle enjoys writing, cooking, eating, reading, and hosting gatherings of friends and family.

Favorite Tree: Red Mangrove (Rhizophora mangle)

George Bruno

Equipment and Crew Manager

George has been working with trees since he was 14 years old. Experienced in all aspects of tree care, he is Seattle Tree Care’s #1 jack of all trades.  The right tool for the job is what George is all about and he makes sure every tool that is used on your property is working properly and is sharp! A great mentor, George helps new crew members realize the Seattle Tree Care mission: Respect for property, trees, and a job well done.

Favorite Tree: New Jersey White Oak (Quercus alba)

James Morlidge

Yard Mechanic

A transplant from Crowthorne, England, James Merlidge moved to Sammamish in 2015. He spent his childhood in the garden with his mother and grandfather. Somewhere between all the weeding and hole digging, James pruned his first tree. Fast forward to today: James felt compelled to channel his love and skill for mechanics into work with Seattle Tree Care. In his free time, you can find James working on his 1977 F150, driving around in his Subaru, camping, and playing with his dog, Reggie.

Favorite Tree: Weeping willow (Salix babylonica)

Jacob Reyes

Jacob has been with the Seattle Tree Care family since 2012. As a graduate of Environmental Science and Resource Management of the University of Washington, where he later returned to work as Lead Climbing Arborist for a year, Jacob is passionate about maintaining the biodiversity and integrity of urban forest ecosystems. He is our ace in the canopies, proficient in large tree removals & pruning in compact city spaces. Jacob is a proud squirrel foster father and enjoys hiking, sailing, permaculture, and recreational tree climbing in his free time.

Favorite Tree: Black Locust (Robinia pseudoacacia)

Adam Shahan

Climber & Crew Leader

ISA Certified Arborist PN-8796A

Adam loves being able to work outside everyday. He enjoys spending his free time drawing comics, surfing, skateboarding, bike touring and playing chess.

Favorite Tree: Sugar Maple (Acer saccharum)

Aaron Jensen

Climber & Crew Leader

ISA Certified Arborist NE-7336A , Certified Treecare Safety Professional

Aaron first became interested in tree care while working on a tree crew in South Carolina. He was impressed by the arborists expertise and technical skills in rigging and managing large, old-growth trees that had fallen over hiking and paddling trails. Aaron has shown great dedication working into a full-time position with Seattle Tree Care and is eager to expand his knowledge in the industry. Aaron likes to challenge himself with the complexity that tree care provides and the physical nature of the industry. 

Favorite Tree: Monterey cypress (Cupressus macrocarpa)

Joe Garrity

Climber & Crew Leader

Joe Garrity is a former Chicagoan who still misses the pizza and his family from back home. After three years using his Business Finance degree behind a desk, Joe decided that life wasn’t for him. He started as a ground crew member with another tree care provider in 2016. Now, he enjoys working climbing and crew leading with his best pals, or as he calls them, the “best crew in the City,” at Seattle Tree Care. Joe spends his free time reading and writing fantasy novels; natural building with cob, strawbale, and adobe; and playing with his cat, Salem.

Favorite Tree: Coast live oak (Quercus agrifolia)

Lloyd Scott

Climber & Crew Leader

ISA Certified Arborist PN-8862A 

Bio coming soon!

Favorite Trees: European Beech (Fagus sylvatica) and Ginkgo (Ginkgo biloba)

Chase Burum

Climber & Crew Leader

Chase has been with Seattle Tree Care since 2016, prior to which he worked for the City of Everett Parks and Rec on a tree crew. He loves the opportunity for learning new skills that comes from working for a private company. Chase has a passion for working outdoors and always has a smile on his face. In his free time he enjoys hiking, juggling and shooting.

Favorite Tree: Ginkgo (Ginkgo biloba)

Moises Lorenzo

Crew Leader & Climber

From a small town in northwest Spain, Moises joins Seattle Tree Care with a wealth of experience about trees and tree maintenance garnered from his father, who was a lifetime sawyer. Moises is passionate about trees and everything outdoors as he spends his time playing soccer, swimming, hiking, and bonding with friends and family.  

Favorite Tree: European oak  (Quercus robur)

Climber Sarah George

Sarah George


Born in South Padre Island, Texas, Sarah George got her start in tree care in Montana. She spent two years working line clearance for a power company before returning to Seattle. Inspired to learn more about the art and science of tree care, Sarah joined the STC team in 2021 as our first female climber. When Sarah isn’t at the top of a tree, she enjoys running, backcountry skiing, and biking around Seattle with multiple stops for coffee, ice cream, and tacos. Or, you can find her at home with her tree-climbing husband and their two cats, Tulip and Búho.

Favorite tree: Ponderosa Pine (Pinus ponderosa)

Nick Burley

Grounds Crew Member & Climber in Training

Nick has worked in the tree care industry for over 5 years. He appreciates the opportunity at Seattle Tree Care to continue learning new technical and mechanical skills. His natural inclination to go above and beyond is valued by his co-workers and clients every day. A seafood aficionado, Nick likes fishing, hiking and camping.

Favorite Trees: Corkscrew Willows (Salix matsudana) & Sunset Maples (Acer rubrum)

Mark Morley

Climber in Training

Mark Morley comes to us from Sitka, Alaska, a city of less than 9,000 people. (Can you guess his favorite tree?) Mark has worked tree care in both Auburn and Tacoma before settling with the Seattle Tree Care family in 2020. When he’s not climbing high in the branches of a tree, Mark enjoys rock climbing, trail running, bonsai trees, surfing, rope swings, and long boarding.

Favorite Tree: Sitka Spruce (Picea sitchensis)

Nick Banks

Grounds Crew Member

Nick loves working in the beautiful Pacific Northwest as a Ground Crew Member for Seattle Tree Care. Nick was born and raised in Seattle. He enjoys the fishing, hiking and sailing that this area has to offer.

Favorite Tree: Weeping Willow (Salix babylonica)

Devan Nelson

Grounds Crew Member

Devan Nelson, hailing from Chesapeake, Virginia, joined the Seattle Tree Care crew in 2020. Devan loves getting to work outdoors, the chance to learn new skills, and the encouraging environment his team members create. Devan is a proud gardener who enjoys spending the day in the yard caring for his zucchini, peas, peppers, kale, and tomatoes. He is also a fan of almost every outdoor sport, from snowboarding in the winter to wakeboarding in the summer. If it gets him moving, Devan is on it.

Favorite Tree: Western Hemlock (Tsuga heterophylla)

Donta Jones

Grounds Crew Member

Donta’ Jones was born in New York, New York, but traded in the city that never sleeps to be sleepless with us here in Seattle. Donta’ finds great joy in seeing each tree project completed. A lover of fishing, hiking, and football, he is also an illustrator who draws cartoons and portraits.

Favorite tree: October Glory Maple (Acer rubrum)

Jeremy M Jones

Grounds Crew Member

Jeremy M Jones was born in Columbus, Ohio and joined the Seattle Tree Care team shortly after his brother, Donta’, in 2020. Jeremy is excited to continue his work in tree care after moving to Seattle. While not working, Jeremy enjoys playing basketball, fishing, and relaxing.

Favorite tree: Angel Oak (Quercus virginiana)

Peter Olthoff

Grounds Crew Member

Peter Olthoff grew his roots right here in Seattle. He loves that working for Seattle Tree Care provides a new opportunity to learn more about our tall, woody friends. Peter is an avid reader who enjoys fantasy novels, and like a true Seattleite, biking around the city. He also enjoys fishing and learning to cook new recipes at home.
Favorite tree: Japanese Maple (Acer palmatum)

Sean Gaddis

Grounds Crew Member

Sean Gaddis, who signed onto the Seattle Tree Care team in 2020, is a plant lover hailing from Columbus, Ohio. He runs a small gardening business on the side, and also works as a King County Master Gardener, the Washington State University’s volunteer force of research-based and environmentally-friendly horticulture experts. Through that program and his own company, Sean educates his community about science-based gardening practices that often include tree management. When asked what his favorite tree was, he couldn’t pick just one! When Sean isn’t working or contributing to his community, he enjoys gardening (of course!) and knitting.

Favorite tree: Catalpa (Catalpa speciosa)

Ryleigh Hartung

Grounds Crew Member

Bio coming soon.

Seattle Tree Care is an Arbor Day Foundation partner, donating a portion of proceeds to offset our carbon footprint through tree planting programs. In order to provide the top notch service we are known for, we recruit and keep an incredible team. Our company offers livable wages, advancement opportunities and paid trainings, along with great benefits. For you, this translates to peace of mind as you can rest assured that the Seattle Tree Care team working on your property is more than qualified for the job.

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