About Decisive Design & Environmental Services
Who We Are
Decisive Design & Environmental Services is a Florida-based environmental consulting firm built on over 30 years of hands-on expertise in high-end golf facility management, landscape design, and ecological stewardship. Founded by Sean O'Reilly — a Certified Arborist, Certified Horticulturist, and FAA 137-licensed drone operator — our team brings a science-driven, comprehensive approach to every property we serve.
From metagenomic soil and water testing to precision drone surveys, we go beyond surface-level care. We diagnose what others miss, design systems that endure, and manage landscapes with the environment at the center of every decision.
Based in Jupiter, Florida, we proudly serve luxury golf courses, private communities, and environmental stakeholders throughout the state.
- Certified Arborist — tree health & preservation
- Certified Horticulturist — plant & turf science
- FAA Part 137 Operator — licensed agricultural drone operations
- GHP Pest Control License — State of Florida, FDACS
Our Services
Drone Technology Services
Golf Facility Management & Consultation
Golf Facility Management & Consultation
Powered by FAA Part 137-certified operations, our drone division delivers precision aerial solutions including high-resolution mapping, Real-Time Kinetic (RTK) GPS surveys, environmental impact imaging, mosquito & midge control, aquatic vegetation management, and variable-rate application missions. We use advanced drone technology to provide data-driven insights that reduce waste and improve outcomes across golf courses, wetlands, and managed landscapes.
Golf Facility Management & Consultation
Golf Facility Management & Consultation
Golf Facility Management & Consultation
With over 30 years of hands-on experience managing premier golf facilities in Florida, we offer comprehensive agronomic and environmental consultation tailored to the unique demands of high-end golf course management. Our services include turf health assessments, irrigation system evaluation, integrated pest management, bunker and course design consultation, and sustainability planning — all grounded in a philosophy of long-term environmental stewardship and playability excellence.
Landscape Design & Environmental Consultation
Our landscape consultation services blend aesthetic design with ecological responsibility. As a Certified Arborist and Horticulturist with 30+ years of experience, we provide expert guidance on plant selection, tree health and preservation, ornamental and turf management, sustainable landscape planning, and natural area restoration. Every design reflects our commitment to creating environments that are beautiful, functional, and ecologically sound.
Environmental Science & Advanced Testing
We go deeper than traditional testing. Our environmental science services include metagenomic soil analysis to identify microbial communities and nutrient pathways, water quality testing for ponds, lakes, and irrigation systems, and FDACS-compliant environmental assessments. These science-based tools allow us to make precision recommendations that improve soil health, water quality, and overall ecosystem balance — delivering measurable, lasting results.