Bill
Logan

Consulting Arborist

Bill Logan founded Urban Arborists and now operates as a consulting arborist for the company. He teaches pruning and tree identification at the New York Botanical Garden's School of Professional Horticulture. At the Garden, he also teaches a master class in tree care to foresters of the New York City Department of Parks & Recreation. He has lectured at numerous botanical gardens around the country, including the Arnold Arboretum, the Morton Arboretum, and the Huntington Botanical Gardens. He has published four books of natural history - Oak: The Frame of Civilization, Dirt: The Ecstatic Skin of the Earth, Air: The Restless Shaper of the Worldand, most recently, Sprout Lands: Tending the Endless Gift of Trees - all from WW Norton.  As writer and contributing editor to House & Garden, House Beautiful and Garden Design, and as a garden columnist for the New York Times, he developed a keen sense of what makes a garden beautiful. He is a sought-after consultant to landscape architects, municipalities, companies and individuals.

Griffin Cascarino

Arborist

Griffin joined Urban Arborists in 2025. As a Brooklyn native, Griffin got his start in tree work while living in Colorado. From large scale forestry projects to backyard prunes, Griffin is passionate and excited about all things tree. You can find him bouncing around the city giving estimates, or swinging from a tree over your roof.

Tyler
Cook

Lead Arborist

Tyler brings a depth of hands-on experience in both arboriculture and natural area management. He previously worked with the Central Park Conservancy, where he managed 15 acres of natural landscapes including the Ramble, North Woods, and Hallett Nature Sanctuary. An ISA Certified Arborist and TRAQ certified, Tyler is an experienced climber with a strong ability to assess tree health, including fungal-related issues. Since joining Urban Arborists in 2023, he has supported projects at The Metropolitan Museum of Art, Madison Square Park, Battery Park, the Cathedral of St. John the Divine, and NYU.

Wayne Kammerer

Inventory Arborist

Wayne joined Urban Arborists in 2015 as a tree worker after having been a student of Bill Logan’s at NYBG adult continuing education program. He received a certificate in Arboriculture from NYBG. Moving from a career as a bread baker to one in tree work was like a full circle moment: Wayne’s affinity for trees grew out of exploring the woods and pasture at his grandparents’ farm in northern Illinois while growing up. He first came to New York as a member of the Coast Guard serving on a buoy tender stationed on Governor’s Island when the island was a major Coast Guard facility. He earned a BA in English and History from SUNY Geneseo. He became an ISA certified arborist while at Urban Arborists and now focuses on tree inventories.