Established in 1936 and based in Sarasota, Fla., Hill York provides full-service air conditioning and energy solutions, including energy management, design/build, facility management, maintenance, repairs, retrofit, liebert service and new construction. It caters to builders, developers, contractors, facility managers and building owners, customized to meet each client's specific needs and priorities. hygreen, Hill York's Performance Group partners with utiliVisor, OptiNet, BuildingAdvice, EnergyExpert, DreamWatts, SmartCool, and BPSI to optimize, sustain and measure energy performance for facilities and buildings..