TGS has provided reliable, quality data for more than 30 years TGS is a publicly traded company with financial headquarters in Asker, Norway and is traded on the Oslo Stock Exchange under the symbol TGS. The company is led by CEO Kristian Johansen, based out of the Houston, TX, office. TGS has employees based in cities around the globe, which include offices in Asker, Houston, London, Calgary and Perth.The hallmarks of success for TGS over the past 30 years have been dedication to high quality data, exemplary service and strategic global growth in emerging and mature markets. TGS’ company philosophy is to create unique high-quality data collected in the right place at the right time. Company Milestones 2015TGS acquired Digital Petrodata LLC (Denver), a small GIS technology company that provides integrated GIS data and cloud solutions.2015TGS acquired Polarcus' multi-client library, with the exception of Australia, in order to strengthen 3D-position in established areas in UK, Norway and West Africa and complement existing database. 2012 TGS acquired Arcis Seismic Solutions (Calgary) in order to grow into the onshore multi-client and imaging businesses in Canada and other markets served by Arcis. 2012 TGS acquired Volant Solutions (Houston) in order to obtain integration solutions for E&P companies to address the challenges of managing geotechnical data. 2011 TGS acquired Stingray Geophysical Limited in order to establish a strong position in the rapidly growing market for Permanent Reservoir Monitoring (PRM) solutions. 2010 TGS acquired directional survey business unit of P2 Energy Solutions’ Tobin business line. This added a large database of high quality, standardized directional surveys to TGS’ collection of well data. 2007 TGS acquired Parallel Data Systems (Houston) to add to their imaging services high performance and accurate 3D pre-stack depth services, time migration and converted wave. 2005 TGS acquired Aceca Geologica (London) to be able to offer multi-client interpretation studies that integrate their suite of geophysical and geological products. 2004 TGS acquired NuTec Energy (Houston) to obtain their large-scale in-house 3D processing and imaging capabilities. 2002 TGS purchased A2D Technologies (Houston) and acquired the industry’s largest online collection of well log data. 1998 TGS acquired Bedford Interactive Processing to obtain their data processing resources. 1998 TGS merged with NOPEC to form a global suite of multi-client North America and Europe/Africa seismic surveys. 1997 NOPEC becomes listed on the Oslo Stock Exchange. 1990 TGS and NOPEC build upon their regional data libraries of high quality multi-client 2D and 3D seismic surveys. 1981 NOPEC was formed in Norway, with business focused on acquiring quality, multi-client seismic data in the North Sea and other regions around Europe, and eventually Africa. 1981 TGS was formed in the US, with business focused on acquiring quality, multi-client seismic data in the Gulf of Mexico.