September 28, 2015
In order to accommodate our expansion and serve our customers, we are moving to a new location. Also, our offices will be closing at 12:00 pm on Friday, September 25, 2015.
As of September 28, 2015 our new address will be:
Address: 14525 FM 529, Suite 205, Houston, TX 77095
Phone: 281-656-1439 (our phone numbers remains the same)

January 30-February 2, 2011
Look for Petra Seismic Design at AHR/ASHRAE Las Vegas.
www.ahrexpo.com
www.ashrae.org/lasvegas

September 12-14, 2010
Robert Simmons speaks at Electrical Generating Systems Association (EGSA) Fall Conference.
www.egsa.org/vantagepoint/CONFERENCE/Speakers.aspx

January 1, 2010
Petra Seismic Design and Seismic Source International join forces to provide the building community with comprehensive services in seismic design consulting, specification, application, inspection, web application and listing of seismically qualified equipment.

January 25th to 27th, 2010
Look for Petra Seismic Design and Seismic Source International to be participating in the AHRI Show and ASHRAE Winter Meeting in Orlando.