About Us
At Honl Tree Care, trees aren't just our business—they're our passion. Since 2009, our family-owned company has been serving the Portland metro area with exceptional tree care, backed by an exceptionally high concentration of ISA-certified arborists—which means you get certified expertise on every job.
What sets us apart isn't just our expertise—it's our genuine love for trees. While other tree companies may have one or two certified arborists, we've built a team of dedicated professionals who share our deep respect for urban forestry. Our certified arborists understand tree biology, proper care techniques, and how to help your trees thrive for generations to come.
Meet Our Team
Our Leadership
Chad Honl, Owner & ISA-Certified Arborist (PN-5537A)
Chad's passion for trees began in childhood and has shaped his entire career. As manager of Friends of Trees' Neighborhood Trees program from 2000 to 2005, he helped Portland communities plant and care for more than 8,000 street trees.
Chad's impact on Portland's urban forest is remarkable. He organized the city's first fruit tree giveaway in 1997, which has since distributed over 20,000 trees—earning him NPR's E-town award. He's created naturescapes in four Portland public schools and received the prestigious City of Portland Bill Naito Award in 2009 for his sustained dedication to Portland's urban forest.
Chad's extensive knowledge and genuine passion ensure you'll receive expert guidance on both caring for existing trees and selecting the perfect species for your landscape.
Isabel Toledo-Silvestre, Co-Owner & Office Manager
Originally from Spain, Isabel came to the United States for a three-month English immersion program—twenty-six years later, she's made Portland her home and can't imagine living without the Pacific Northwest's incredible tree canopy.
After a successful nursing career, Isabel joined Honl Tree Care in 2016 to spend more time with her children while contributing to the family business. She handles billing, payroll, and operations, bringing the same care and attention to detail that made her an excellent nurse. Isabel is always ready to help customers with questions or scheduling. ¡Gracias for choosing Honl Tree Care!
Our Caring Certified Arborists
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Adam Beach
Job: ISA Certified Arborist (PD-3148A)
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Chris Brinkman
Job: ISA Certified Arborist (PN-9012A)
From: Frostburg, Maryland
Previous Experience: A natural love of nature.
What I Love About the Work: Learning about trees, their growth, and maintenance.
Favorite Thing About the Pacific Northwest: The weather and the respectful nature of most people.
Favorite Tree: Sequoia -
Isaac Brocker
Job: Arborist
From: A small town near Gary, IN
Previous Experience: B.S. in Biology
What I Love About the Work: Combining my physical skills and biological knowledge to bring clients’ visions to life.
Favorite Thing About the Pacific Northwest: Exploring the forests.
Favorite Tree: Sugar Pine -
Tyler Groff
Job: ISA Certified Arborist (PN-9881A)
Previous Experience: Led conservation corps crews for several years.
Favorite Tree: Large trees with sturdy branches perfect for relaxing.
What I Love About the Work: Caring for healthy trees and working outdoors.
Pets: A hairless guinea pig named Playdough. -
Adam Jung
Job: ISA Certified Arborist (PN-10219A)
From: Cape Girardeau, MO
What I Love About the Work: Learning about the diverse habits and characteristics of different tree species.
Favorite Thing About the Pacific Northwest: The region's capacity to support an incredible variety of plant life.
Favorite Tree: Taxodium distichum – Bald Cypress. -
Jason Mayorga
Job: ISA Certified Arborist & Certified Tree Worker (WE-10999AT)
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Rick Till
Job: ISA Certified Arborist (PN-8358A)
From: Renton, WA
Previous Experience: Organic Gardening Certificate Program; three seasons of trail maintenance with the Forest Service
What I Love About the Work: Creating aesthetically beautiful trees
Favorite Thing About the Pacific Northwest: Our native forests and ecosystems
Favorite Tree: Cascara -
Scott Van Bergen
Job: ISA Certified Arborist PN-9659A
From: Portland, OR
What I Love About the Work: Being outdoors and working with trees.
Favorite Thing About the Pacific Northwest: The abundance of good food, beer, and diverse places to explore.
Favorite Tree: Black Walnut
Pets: One dog -
Hayden Young
Job: ISA Certified Arborist (PN-9310A)
Our Trusted Office Coordinators
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Heather Fields
Job: Office Coordinator
From: Rockville, MD
Favorite Thing About the Pacific Northwest: The rain
Favorite Tree: Southern Live Oak
Pets: A dog named Maize -
Michael Liebman
Job: Office Coordinator
From: Portland, Oregon
Favorite Thing About the Pacific Northwest: The diverse tree species and the favorable climate for growing vegetables
Favorite Tree: Copper Beech
Pets: A Border Collie mix named Finn -
Sierra Norwest
Job: Office Coordinator
From: Portland, Oregon
Favorite Thing About the Pacific Northwest: Living near the beach and mountains and experiencing the unique seasons and weather each has to offer.
Favorite Tree: Weeping Willow
Pets: A dog named Nikita
Our Dedicated Ground Crew Arborists
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Janice Anderson
Job: Arborist
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Travis Cooke
Job: Arborist
From: Waco, TX
What I Love About the Work: Preserving the urban tree canopy
Favorite Thing About the Pacific Northwest: Vacation-worthy destinations are just 30 minutes away
Favorite Tree: Southern Live Oak -
Emil Kmetovic
Job: Arborist
From: Portland, OR
Previous Experience: 10 years, including work with PDC and agroforestry
What I Love About the Work: Working outdoors with trees as part of a crew
Favorite Thing About the Pacific Northwest: Whitewater, mountains, and plant life!
Favorite Tree: Cedar
Pets: 1 cat -
Isaiah Smith
Job: Arborist
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Andy Teel
Job: Arborist