Star Seismic
- Manufacturers of a buckling restrained brace, a yielding steel core brace that is prevented from buckling when forced into the plastic range of the steel by an earthquake or other seismic activity. Includes test results and application movie.
- http://www.starseismic.net/

GERB Schwingungsisolierungen GmbH & Co. KG
- Design and install vibration isolation and control and seismic protection equipment. Includes a technical publications library and career opportunities.
- http://www.gerb.com/

Syscom Instruments
- Designer and manufacturer of measurement systems for monitoring, recording and evaluation of earthquakes and vibration. Data sheets available in pdf format.
- http://www.syscom.ch/

QuakeWrap
- Designer, supplier and installer of fiber enforced polymer products for building structures. Page includes company history and explains how the product works.
- http://quakewrap.com/

GeoSystems Consultants, Inc.
- Offers identification of the causative fault, site response studies, seismic risk assessment, liquefaction potential analysis and mitigation.
- http://www.geosystems.com/geosystems_seismic.htm

Earthquake Protection Systems Inc.
- One of the seismic isolation bearing manufacturers offers complete seismic isolation services, including design support, manufacturing, testing, and construction support.
- http://www.earthquakeprotection.com/index.html

Gas Control Technologies, L.L.C.
- Focuses primarily on installation of automatic natural gas earthquake shut-off valves and also on underground natural gas leak detection.
- http://www.gascontroltech.com/

Taylor Devices, Inc.
- Promotes its products for energy absorption, motion control, impact reduction, controlled deceleration, rate control, machinery impact, air blast, vibration reduction, seismic protection, and earthquake isolation.
- http://www.taylordevices.com/tayd.htm

WorkSafe Technologies offers
- A variety of products such as QuakeMats, SeismaFlex, GripStrip, TekGrip fasteners and ISO-Base platform to secure non structural seismic hazards.
- http://www.worksafetech.com/

Open Seismic Project
- Consulting project to empower civil/structural engineers with shared resources of the Internet.
- http://www.openseismic.com