Founded by two engineers in 1987, Geoprobe Systems manufactures drilling rigs, tooling, and Direct Image sensing equipment in Salina, Kansas. The company introduced the first direct push machines and tooling for environmental work and now supports soil probing, drilling, sampling, and well construction around the world. Its engineers regularly field-test designs alongside drillers, pairing hands-on development with factory service and support.
GTD descoGTD desco is a specialist manufacturer of geothermal drilling rigs and support equipment, with its main factory and in-house R&D center in South Korea. Unlike manufacturers focused only on machines, the company’s team includes experienced geothermal drillers who work alongside customers in the field, using that practical knowledge to shape equipment development and commissioning support. Its purpose-built facilities produce more than 80% of rig components in-house and can deliver popular models in roughly four months.DUNCANNON, PA
N&N Drilling Supply MfrN&N Drilling Supply Mfr. began in 1967, when Angelo Nieto ran the company from a two-person garage operation; today, the Nieto-led business employs 35 people and serves drilling customers around the world. Its Jessup operation manufactures in-hole drilling equipment, with core barrels among its established specialties, while its U.S. locations support geotechnical, water-well, environmental and exploration work.JESSUP, PA
American AugersFounded in 1970, American Augers manufactures horizontal directional drilling equipment, mud pumps, and fluid cleaning systems. The company says its machines are made in-house in West Salem, Ohio, with work traced back to the originating steel mill. Its equipment serves horizontal directional drilling and underground construction jobs.WEST SALEM, OH
Pennsylvania Drilling CompanyWith roots reaching back to a 1900 drilling company, family-owned Pennsylvania Drilling Company combines contract drilling with in-house manufacturing for foundation construction. Its McKees Rocks machine shop makes PennDrill casing and tooling, while the Winchester division builds Colcrete grouting equipment; crews also take on environmental and foundation investigations, including difficult-access work. The company introduced the PennDrill line in 1947 and now operates manufacturing divisions in Pennsylvania and Virginia, along with a U.K. division acquired in 2021.MCKEES ROCKS, PA