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The Treemasters Team

Meet the Treemasters Staff

Here are just some of the Skilled Team Members of Treemasters

Tad Jacobs


I.S.A. Certified Arborist #WE-8281A

DPR Qualified Applicator #117773

Certified Tree Safety Professional CTSP #1571

ISA Tree Risk Assessment Qualification (TRAQ)

Established Treemasters in 1987

Michael Queirolo

Certified Arborist

I.S.A. Certified Arborist #WE-8291A

Tree Risk Assessor (TRAQ Certified)

Certified Tree Worker #2147C

Joined Treemasters in 2002

Patrick Shand

Certified Arborist

I.S.A. Certified Arborist #WE-12127A

Joined Treemasters in 2017

Tad Jacobs

Owner Tad Jacobs has been providing Marin County with quality tree care since 1987. With Tad’s drive and vision TREEMASTERS has grown into one of Marin County’s most recognized and respected tree care companies. TREEMASTERS is a TCIA Accredited Company and is honored to have this recognition. Tad, a member of the ” TCIA Peer to Peer Group” a group of business leaders in the tree service industry from all over the US as well as Canada, that get together and share ideas, business strategies and their experiences. Tad is now a Board Member of the TCIA, the world’s largest Arboricultural Trade Organization, representing over 2300 tree care firms worldwide.

Tad is heavily involved and dedicated in continuing his education and training to stay current with the latest developments in the tree care industry in order to provide our clients with the highest quality service. Tad is currently an I.S.A. Certified Arborist with a Tree Risk Assessment Qualification, a Certified Tree Care Professional and Licensed by the State of California as a Qualified Applicator. Tad is an austere leader with safety being the #1 priority for the production teams in the field. Tad has established a rigorous safety training regime for new field team members as well as the seasoned team members who have been with the Company for decades. When Tad is not out and about meeting with clients, running crews or managing his business, this Marin County native enjoys cycling and mountain biking along the trails of scenic Marin County.

Michael Queirolo

Michael joined the TREEMASTERS team in 2002. Beginning with performing tree work in the field, over the course of several years, Michael gained the knowledge to allow him to become an ISA Certified Arborist with a Tree Risk Assessors Qualification. Michael has dedicated himself to providing our clients with knowledgeable, high-quality tree care. Michael enjoys spending time with his grandchildren, as well as participating in cold-weather sports and snow caving.

Patrick Shand

Patrick joined the TREEMASTERS team in 2017 and has been working in the industry since 2005. He is one of our lead foreman as well as an arborist that excels at providing our clients with high quality tree care. In his free time, Patrick enjoys camping, martial arts, and spending time with his children.

The Treemasters Team in San Rafael and the Bay Area

Serving San Rafael Metropolitan Area and SE Marin County

St Vincent | Santa Venetia | Woodacre | Novato | Petaluma | Point Reyes Station | Mill Valley | Tiburon | Sears Point | Sausalito | Bolinas | Strawberry | McNears Beach

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Treemasters - Tree Service Company & Professional Arborists

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