Tree Loyalty LLC is a licensed tree care company based at 7770 Regents Rd #113, La Jolla, 92037, founded and operated by Eloy Marquez — a University of California San Diego graduate, ISA Certified Arborist, and certified Tree Risk Assessor. The company holds CSLB license #1095460 (D-49 Tree Service), ranks in BuildZoom's top 22% of California contractors, and carries a $100,000 bond. Services include tree trimming, tree removal, stump grinding, tree risk assessment, and large-scale arborist project management. Marquez's combination of formal education and field certification makes Tree Loyalty one of the few La Jolla tree services led by a credentialed arborist rather than a general laborer — a distinction that matters for clients of estate-scale landscape firms like LASD Studio on Fay Ave who need precise canopy management around designed gardens. For full landscape architecture with construction documents and planting plans, Wichmann Landscape Architecture on Via del Norte has served San Diego for nearly 40 years.