Engineering firm Simpson Gumpertz & Heger Inc. (SGH), based in Waltham, Mass., has opened an office in Houston.

According to the company, SGH will provide its full range of structural and building technology services, with an emphasis on risk assessment and design associated with blast, seismic, hurricane and other hazards for the petrochemical industry.

Paul Summers, senior principal; Guzhao Li, staff consultant; and Zonglei Mu, senior project manager, have joined SGH in Houston. According to the company, it will add other staff and leadership in Houston this year from its other offices.