Donaghy’s father, Patrick, co-founder of the group’s flagship contractor Structure Tone, advocated for a business culture that invested in its employees since the firm’s beginning in 1971. Christie’s NY, New York City: Structure Tone is CM for this multi-phased 373,000-sq-ft renovation for the auction industry leader. “You become familiar with landmark and historical properties in New York City.” We continue to invest in specific training, and ensuring that it's a continuous learning environment inside STO Building Group. At the Structure Tone office, we provide what they call an Explorer “post” for roughly 40 kids in the spring and 40 in the fall.