Simpson Gumpertz & Heger Inc. (SGH) is a national engineering firm offering comprehensive services in structures and building enclosures, advanced analysis, performance & code consulting, and applied science & research. Our building enclosure projects encompass contemporary and existing facades, waterproofing, and building science. SGH helps clients integrate and implement these systems for enhanced performance, reliability, cost, and other factors. Our team members include engineers, architects, scientists, and many other technical professionals. We have more than 600 employees in eight offices: Atlanta; Boston; Chicago; Houston; New York; San Francisco Bay Area; Southern California; and Washington, DC.