Information about SSA's corporate members is below. For additional information click a company's name to visit their website. View information about Corporate Membership in SSA or telephone SSA Headquarters at (510) 525-5474.
Ivan G. Wong
1333 Broadway, Suite 800
Oakland, CA 94612
AECOM (formerly URS) is one of the leading engineering firms in the U.S., with a professional staff of approximately 60,000 employees in more than 60 countries. AECOM, which is comprised of the past well known engineering firms of Woodward-Clyde, Dames & Moore, and John Blume and Associates, is a leader in the fields of seismology, seismic geology, and geotechnical and structural earthquake engineering. The firm has conducted seismic hazard evaluations and developed seismic design parameters for many tens of thousands of important and critical facilities worldwide. Basic applied research has been a focus of AECOM earth scientists and engineers, who have received numerous grants from the USGS, NSF, DOE, and DOD. Some of our professionals have pioneered the development of field, analytical, and computational techniques used in the earthquake profession
P.O. Box 193965
San Francisco, CA 94119
Bechtel is one of the world's largest engineering-construction firms. Founded in 1898, Bechtel provides premier technical, management, and directly related services to develop, manage, engineer, build, and operate installations for customers worldwide. Many of the objectives of the Seismological Society of America, such as promoting public safety and showing that it is reasonably practicable and economical to build for security from earthquake damage, are in close accord with Bechtel's vision and values.
235 Montgomery Street, Suite 500
San Francisco, CA 94104
ExxonMobil Upstream Research Company
Technical Information Center
22777 Springwoods Village Parkway
Houston, TX 77252-2189
gempa GmbH specializes in development and support of natural hazard monitoring software, in particular earthquake monitoring and tsunami early warning. Our company is a commercial spin-off of the German Research Centre for Geosciences (GFZ) and nowadays the main developer of the seismic real-time analysis system SeisComP3, which is the key component of many earthquake monitoring centers world wide. Originally active in the field of seismic monitoring only, the range of software products is extended to offer turnkey solutions for tsunami warning centers.
GeoSIG provides earthquake, seismic, structural, dynamic and static monitoring and measuring solutions for use in various market segments inclusive of seismic and earthquake monitoring, nuclear power stations, dams, bridges, tunnels and buildings. GeoSIG has developed a large variety of high quality Seismic and Earthquake Recorders, Sensors and Civil Engineering Monitoring Systems and Networks. These highly versatile products in terms of features, functions, quality and reliability are produced at an optimum price performance ratio. The design and development of all GeoSIG systems are centred on obtaining the credibility of being associated with being Swiss made, with thousands of instruments and systems supplied since 1992 and in operation around the world.
GeoSIG has a focus on quality having met ISO 9001:2008 with certificate no CH 2117.
Geotech Instruments, LLC
2418 Executive Drive
Garland, TX 75041
Geotech Instruments was founded in 1936 as an oil exploration equipment company and was reorganized in the early ’60's to manufacture earthquake and explosion monitoring equipment. Geotech Instruments manufactures ultra low-noise short-period and broadband seismometers, 24-bit digitizers, portable and strong-motion recorders, seismological networks, CTBT infrasound arrays and Auxiliary seismic stations, Early Warning Systems, and complete support software. Geotech Instruments also provides seismic network design, as well as installation and training services.
Guralp Systems Ltd
12 Southwood Dr.
Orinda, CA 94563
Guralp Systems Ltd. (GSL), based in Berkshire in southern England, is a leading designer and manufacturer of broadband seismic instrumentation. Their product range encompasses nearly all types of seismic devices, including land-based, ocean-bottom and borehole instrumentation. Founded by Dr. Cansun Guralp in 1985, the firm has grown steadily as a result of its excellent reputation withing the industry, and now employs over 60 people in a 10,200 square foot factory.
Guralp Systems boasts an international clientele, particularly in eminent areas of seismological research such as the USA and Japan. GSL was presented with the Queen's Award for Export Acheivement in 1999 in recognition of this attainment. As an ISO 9001-certified company GSI has provided equipment for many major projects worldwide. In addition, GSL provides complete turn-key systems for volcano monitoring and combined infrasound and seismic research, as well as Ocean Bottom Observatories.
222 Vista Avenue
Pasadena, CA 91107
Kinemetrics is the global leader in earthquake monitoring solutions and services and is a major player in the field of earthquake research. The equipment and solutions it produces provides data and information to scientists and engineers who are involved in making our world a safer place to live. Some of Kinemetrics' instruments are used to monitor the seismic safety of many of the world's wonders, including India's Taj Mahal, Greece's Parthenon, Egypt's Sphinx, and famous structures in the U.S. such as New York's Statue of Liberty and San Francisco's Golden Gate Bridge.
Lettis Consultants International, Inc.
1981 N. Broadway, Suite 330
Walnut Creek, CA 94596
Lettis Consultants International, Inc. (LCI) offers high-technology, innovative earth science consulting services to clients around the world. LCI geologists, seismologists, and engineers have comprehensive worldwide experience providing seismic hazard analyses, engineering geology and geotechnical services, water resources expertise, and licensing and regulatory strategy and compliance. We have conducted numerous state-of-the-art studies in support of seismic analysis and design for critical facilities (pipelines, dams, nuclear plants, penstocks, hospitals, commercial buildings, bridges). Our professionals bring the methods, technical expertise and focus on quality developed from over 150 years of combined consulting experience to meet our clients’ objectives in a manner that reflects our strong belief that good science and good engineering result in the best, informed decision-making for facility owners and operators.
250 Herzberg Road
Kanata, Ontario K2K 2A1
Nanometrics is the world’s largest manufacturer and integrator of specialty instruments, software and data communications systems for seismological monitoring. Users with mission-critical environmental and earthquake surveillance requirements that demand the highest possible data quality, reliability and availability deploy Nanometrics products with confidence. Nanometrics real-time and portable systems are in use on every continent and in more than 100 countries by government institutions, universities and test ban treaty monitoring organizations.
Pacific Gas & Electric Company
PO Box 770000
San Francisco, CA 94177
Pacific Gas and Electric Company, incorporated in California in 1905, is one of the largest investor-owned gas and electric utilities in the United States. Based in San Francisco, the company is a wholly owned subsidiary of PG&E Corporation. PG&E's infrastructure includes 131,000 miles of electric lines and 43,000 miles of gas pipelines. There are 18,400 employees who carry out Pacific Gas and Electric Company's primary business -- the transmission and delivery of energy. The company provides natural gas and electric service to approximately 13 million people throughout northern and central California, a region of moderate to high earthquake activity. PG&E provides strong leadership toward improving seismic safety throughout its service territory.
Puerto Rico Strong Motion Program
P.O. Box 9041
Mayagüez, PR 00681
The Puerto Rico Strong Motion Program (PRSMP) is under the Civil Engineering & Surveying Department at the University of Puerto Rico at Mayagüez. The program began in the mid-1970's with the installation of eight free-field stations and an instrumented building on the island. Today Puerto Rico is one of the most seismically instrumented regions in the world. The main objective of the program is to minimize fatalities and economic losses on the island due to earthquakes. This is done by determining the acceleration records for which buildings should be designed, supporting related research, supporting the Puerto Rico Seismic Network with real-time strong-motion data, and supporting emergency agencies.
7575 Gateway Blvd.
Newark, CA 94560
RMS is the world’s leading provider of products, services, and expertise for the quantification and management of catastrophe risk. More than 400 leading insurers, reinsurers, trading companies, and other financial institutions rely on RMS models to quantify, manage, and transfer risk. As an established provider of risk modeling to companies across all market segments, RMS provides solutions that can be trusted as reliable benchmarks for strategic pricing, risk management, and risk transfer decisions.
Trimble Navigation Limited
1600 Tenth Street, Suite A
Plano, TX 75074
Trimble's portfolio of market-leading advanced positioning solutions (GNSS), application software and state-of-the-art REF TEK seismic recorders/sensors provide integrated proven tools for geodetic, seismological, and meteorological scientific research and monitoring applications. Our robust technologies provide an unprecedented level of capability and reliability to improve safety decisions, ensure structural integrity, and future-proof your investment..
Weir-Jones Engineering Consultants Ltd.
598 East Kent Ave. South
Vancouver, BC V5X 4V6
The Company was founded in 1971 to provide specialized structural and geomechanical monitoring and testing services to the resource and transportation sectors. The Company’s capabilities subsequently expanded in the areas of data processing and testing system design, the application of this expertise has been extended considerably, notably in the fields of structural integrity monitoring for heavy structural, energy and offshore systems. The Company has its headquarters in Vancouver and has been active in projects in 55 countries. The Company has maintained branch offices in St. John’s, Newfoundland; Fort McMurray, Alberta; and Oakville, Ontario. Typically more than 90% of the Company’s projects incorporate elements of system design, data acquisition, system planning, data collection, analysis, and redesign. Clients typically retain the Company on a project basis in order to characterize a problem, develop a solution, and evaluate its effectiveness.
Special Capabilities of Weir-Jones: Structural integrity assessments, Forensic engineering and failure analysis, Structural health monitoring system installation and related supervision on offshore structures, Installation services for instrumentation and monitoring systems on fixed and mobile structures as well as pipelines, In situ testing and monitoring on natural and man-made structures, Static and dynamic stress measurement, testing and analysis, Vibration analysis on rotating and reciprocating equipment, Calibration and testing to ISO, CSA, MIL standards, and Ground stabilization by freezing, grouting and reinforcing.