Since 1953, Schonstedt Instrument Company has designed and manufactured underground locating instruments, including magnetic locators for buried iron objects and pipe-and-cable locators for tracing utilities. Based in Kearneysville, West Virginia, the company has shipped more than 400,000 locators worldwide and joined Radiodetection and SPX Technologies in 2018. Its instruments have also supported humanitarian demining efforts through the Schonstedt Humanitarian Demining Initiative.
RadiodetectionFounded in 1977, Radiodetection is a globally recognized company known for helping utility professionals manage underground infrastructure safely. Its equipment and digital solutions help customers locate buried utilities, with operations spanning more than 60 countries. Radiodetection is part of SPX Technologies and has expanded its capabilities through brands including Schonstedt and Sensors & Software.KEARNEYSVILLE, WV
NDT International, IncOperating under the same ownership and at the same location since January 1971, NDT International, Inc. designs and supplies nondestructive testing instruments and provides related technical services. The West Chester company began as a manufacturer’s representative and supplier of ultrasonic personnel, later developing patented monitoring equipment and instruments used by nuclear facilities and the U.S. Navy. Today it pairs its own U.S.-made ultrasonic gauges and flaw detectors with equipment from more than 20 partner companies, along with calibration, consulting and inspection support.334519WEST CHESTER, PA
Institut Dr. Foerster GmbH & Co. KGSince 1948, Institut Dr. Foerster GmbH & Co. KG has developed and manufactured systems that make hidden material conditions visible, specializing in non-destructive testing, metal detection, and magnetic-field measurement. From testing metal semi-finished products to detecting ordnance and inspecting industrial components, FOERSTER combines engineering expertise with worldwide service and a 24/7 support process. The company describes itself as family-owned and operates an ISO 9001-certified quality management system.334519PITTSBURGH, PA
Prime HorizontalFounded in 1998 by four engineers, Prime Horizontal provides horizontal directional drilling guidance, downhole tooling and post-installation pipeline mapping. The company pioneered HDD underground intersects and developed its ParaTrack guidance work with Vector Magnetics, while its international team now supports projects from offices across the UK, the Netherlands, America and Australia. Prime Horizontal has grown to more than 55 employees and reports 475 years of collective field HDD experience.WHITE PLAINS, NY