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Licenses & Certifications
Every credential we hold is a direct reflection of the standard we hold ourselves to.
Why It Matters
Qualified. Licensed. Accountable.
In an industry where anyone can call themselves a tree service or landscaper, credentials matter. The licenses and certifications we hold are not decorative — they represent years of training, ongoing education, and a verifiable commitment to doing this work correctly and safely.
Our Credentials
Licenses, Certifications & Affiliations
Board-Certified Master ArboristISA Certificate #WE-8846B
International Society of ArboricultureMember in Good Standing
BBB Accredited BusinessAccredited Since 2013
Landscape Industry CertifiedCertified Technician
California Landscape Contractors AssociationMember
Qualified Applicator LicenseCA Dept. of Pesticide Regulation · #138201
Contractors State License BoardC-61/D-49 · C-27 · License #985639
What These Mean for You
Verified Expertise at Every Level
The Board-Certified Master Arborist credential is the highest designation offered by the International Society of Arboriculture. It requires demonstrated expertise, ongoing continuing education, and a commitment to professional arboricultural standards — and it means every recommendation we make is grounded in the science of tree biology, not guesswork.
Our CSLB license covers both tree service work (C-61/D-49) and full landscaping construction (C-27), which means we are legally authorized to perform the complete range of services we offer — from pruning and removal to full landscape installation. Our Qualified Applicator License through the California Department of Pesticide Regulation authorizes us to apply chemical treatments safely and legally.
When you hire San Jose Tree Service & Landscaping, you can verify every credential listed here through the issuing organization. We encourage you to.
The Board-Certified Master Arborist designation from the ISA represents the pinnacle of professional arboricultural training. Robert Apolinar holds this credential — Certificate #WE-8846B.
License #985639 covers both C-61/D-49 (Tree Service) and C-27 (Landscaping), allowing us to manage the full scope of tree and landscape work without subcontracting critical services.
More than a decade of accreditation with the Better Business Bureau reflects a consistent track record of ethical business practices and responsive customer service.
Work With a Licensed Team
Credentials You Can Verify. Service You Can Trust.
If you have questions about our licenses, certifications, or what they mean for your project, we're happy to walk you through it. Every job starts with an honest conversation.