Arborist Licensing Program

The program includes tree care contractors working on both public and private property within Boulder city limits. All tree contractors working within the Boulder city limits must be licensed.

Licensed and Certified Arborists and Tree Contractors

Company NameBusiness Phone
10 Star Tree Care720-626-8745
5280 Trees720-577-5280
Altitude Arborist303-252-0818
Arborforce303-472-0192
Arborstar Tree Care303-449-6231
Bailey Tree LLC720-940-6519
Bartlett Tree Experts512-240-3060
Bees & Trees, Inc303-669-9520
Berkelhammer Tree Experts Inc303-443-1233
Blade & Bough Tree Care303-249-3111
Blue River Forestry & Tree Care720-256-9056
Bullard Tree and Garden720-951-2995
Cutting Edge Tree Care303-362-1002
Davey Tree Expert303-449-2525
Flatirons Arbor Care720-938-2002
Geesaman Tree Company303-875-0051
Good People Tree Service303-847-5221
Herm Enterprises LLC dba Herm Tree Service720-456-9234
Hollar Tree Co LLC720-446-9832
Ironwood Earthcare303-366-3020
K2 Tree Service-
Langley's Tree Specialist LLC720-629-2147
Lynn's Tree Service720-366-3226
Mile High Tree Care, Inc.303-292-9393
Mountain Tree Care303-443-9430
Oak Arbor Care720-899-0329
Patriot Tree Company Inc720-295-8733
Reinholt Tree Care Inc303-931-9282
Rocky Mountain Arboricultural Consulting LLC303-810-5100
Rocky Mountain Tree Care Inc303-431-5885
Roots Arise720-383-7822
SavATree LLC303-337-6200
Scott Parry Certified Arborist LLC720-778-7191
Shady Grove Tree Care, Inc.303-886-6905
Shiloh Woods Enterprises LLC dba Monster Tree Service of Greater Boulder303-532-7070
Splintered Forest, LLC303-819-9840
Summit Tree Care LLC720-927-2325
Super Trees Colorado LLC303-515-1655
Tannenbaum Tree Care720-704-1341
Urban Woods LLC720-365-4666
Velte Forestry & Arboriculture-
Walker Tree Care720-480-0398
Western Cut Tree Care720-421-0313
Wright Tree Service800-882-1216

Company NameBusiness Phone
ArborWorks LLC559-641-2434
Daiki Tree Services LLC720-434-2460
Green Saw Tree Service405-306-6532
Silver Lands Inc702-459-3192
SJ Ward Landscapes LLC303-776-7991

How the program serves residents and tree care services

  • Ensures all persons/ companies performing tree work within the city have the necessary insurance; 
  • Ensures all tree work within the city is performed in a safe, professional manner and according to industry standards; 
  • Ensures all diseased/infested wood is disposed of in a proper manner to prevent the spread of insect/disease problems; and 
  • Maximizes environmental, social, economic and health services derived from the Boulder urban forest.  

Information on Licensing 

Certified Arborist License– for all ISA certified arborists or professional level tree care companies. 

Licensees in this category have demonstrated a higher level of knowledge and professionalism and are allowed to perform tree work to trees in the public rights-of-way and to both public and private trees that are infested/infected with a major insect/disease problem such as EAB (emerald ash borer), thousand cankers disease of black walnut, Dutch elm disease, drippy blight of red oaks, mountain pine beetle, etc.

Tree Contractor – for all persons/companies performing tree work that are not ISA certified or choose not to test through the City of Boulder office.

Licensees under this category are not allowed to perform tree work to trees in the public rights-of-way or to both public and private property trees that are infested/infected with a major insect/disease problem.