05/05/2026
Meet John Sirbasku, Consulting Sales Arborist at Birch Tree Care.
John began working with trees right after high school in 1991, starting as a groundworker and building a career that spans more than three decades. He earned his ISA Arborist Certification in 1995 and spent over 20 years as a working climber, along with running his own tree service for a decade.
His experience also includes teaching tree climbing and basic arboriculture at Hennepin Technical College, as well as serving in leadership roles like Operations Manager, Safety Manager, and Technical Advisor on complex projects.
Since joining Birch Tree Care in 2026, John has focused on helping clients care for and improve the resilience and beauty of their trees through thoughtful, experienced guidance.
Outside of work, John enjoys hiking, fishing, boating, camping, and exploring off-grid destinations. He’s also proud to share the industry with his daughter, an arborist and skilled climber, and loves spending time with his granddaughter.
Learn more about our team at https://www.birchtreecare.com/