Certified Arborist Expertise You Can Rely On
Green Prism Consulting provides professional arborist consulting and expert witness services grounded in real-world experience, industry standards, and objective analysis.
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Led by ISA Certified Arborist Odis Sisk, our work supports attorneys, insurance professionals, property owners, and organizations who need accurate, defensible tree assessments for high-stakes decisions.
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Our services include tree risk and damage assessment, forensic investigation, arborist reports, and expert testimony for litigation, insurance claims, and property-related matters.
About Our Team
Experience That Extends Beyond the Field
Odis Sisk
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Odis is a 3rd generation arborist with a passion for all things arboriculture. He has performed many roles throughout his career starting in 1999 including:
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Production Climbing Arborist
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National & International Instructor
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Regional Safety Director
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Plant Health Care Consultant & Technician
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Operations Manager
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Expert Witness
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Inventor
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As an International Society of Arboriculture Certified Arborist, Utility Specialist, and Tree Worker, he is well equipped in the many aspects of tree care and preservation.
ISA Certified Arborist # SO-4211AUT​
Rachel Sisk
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Rachel has helped clients from the business office since 1999, and has enjoyed working in the arboriculture industry since 2010. She loves learning and widening her scope of understanding about science, art, and industry. Her experience includes:
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Reception & Bookkeeping
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Communications & Marketing
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Plant Health Care Technician & Groundsman
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Project & Records Management
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Rachel graduated from the University of Georgia with a Bachelor of Arts in Studio Art and concentration in Scientific Illustration. You may have seen her paintings at art exhibitions in Gainesville and beyond.
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