STO Building Group | Construction Management & General Contracting | STOBG
The STO Building Group (STOBG) family of companies—Structure Tone, Structure Tone Southwest, Structure Tone International, Pavarini North East Construction, Pavarini McGovern, LF Driscoll, LF Driscoll Healthcare, Govan Brown, Ajax Building Company, BCCI Construction, Layton Construction, Abbott Construction, and RC Andersen—includes over 4,000 employees located in offices throughout the US, Canada, UK, and Ireland.
WHAT WE DO We build. From workplaces and hospitals to hotels and cultural centers, we build the amazing places that define communities. Our services span the full lifecycle of construction—starting with site evaluations and preconstruction through to commissioning, close-out, and beyond.
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