About Treemasters 2017-08-26T20:54:16+00:00


Tad Jacobs founded TREEMASTERS with three very simple principles; Honesty, Integrity and Craftsmanship and after thirty years in business those principles continue to be our pledge to our clients.

At TREEMASTERS we show pride in providing the highest quality tree care for our valued clients. Every day we aim to maintain our commitments to serving our clients and preserving the environment. High quality customer service comes first and foremost from our dedicated staff. We provide the superior quality tree care experience TREEMASTERS has been best known for.



Tad Jacobs

I.S.A. Certified Arborist #WE-8281A, DPR Qualified Applicator #117773, Certified Tree Safety Professional CTSP #1571, Tree Risk Assessor (TRAQ Certified)

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 has joined a group called ” TCIA Peer to Peer.”  It is 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 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 years. 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

I.S.A. Certified Arborist #WE-8291A, Tree Risk Assessor (TRAQ Certified), Certified Tree Worker #2147C

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 Queirolo
Randy Resch
Randy Resch

Safety Officer

Randy joined TREEMASTERS in 2013. Randy’s career had dotted the globe, working throughout the US as well and much of Europe.

Randy brings all of these experiences to each client and thier properties. Randy is TREEMASTERS Safety Officer, making sure every day is a safe day for our employees and clients.

David Orlandi

DPR Qualified Applicator #120566, I.S.A. Certified Arborist #WE-9373A

David was a 15 year client, working in the property management business, when he decided to join our team in 2008. Very quickly, David established himself as a valuable asset to the company as he worked diligently to develop our Plant Health Care division. David is licensed by the State of California Department of Pesticide Regulation as a Qualified Applicator and is also an ISA Certified Arborist.

David Orlandi