- California Landscape Contractor since 1974 – license #299491, #861133
- State Qualified Applicator for landscape chemicals – license #35597
- State of California – Certified Landscape Irrigation Auditor
- California State Teaching Credential #324687 for Ornamental Horticulture
- Certified Arborist – WE3636A
- Accredited by the Treecare Industry Association
- Certified Treecare Safety Professionals – #01107 & #01118
- International Society of Arboriculture Tree Risk Assessment Qualification