Pablo Lopez-Castillo

Structure Tone Southwest

Founded in 1977, Texas-based Constructors & Associates joined the Structure Tone family in the 1980s, shifting to the name Structure Tone Southwest in 2010. The firm provides both new and renovation services across Texas through offices in Austin, Dallas, Houston and San Antonio. In the past several years, local operations have expanded in the southwest, encompassing work in Oklahoma, Kansas and points farther west. We are one of Texas' top ranked construction management firms, annually putting in place over $650 million in construction value. We provide comprehensive construction services for commercial, education, mission critical, healthcare, hospitality, life sciences, and government clients. Our portfolio includes renovation and expansion, new construction, and infrastructure upgrades – integrating sustainability/LEED, utilizing BIM and delivering projects through CM, GC, D/B and IPD. The STO Building Group 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.