With 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.
Pennsylvania Drilling CompanyWith roots reaching back to 1900, family-owned Pennsylvania Drilling Company combines contract drilling with in-house manufacturing of foundation drilling tools and casing. Its McKees Rocks machine shop produces PennDrill tooling, while the Winchester division makes and rents grouting equipment for geotechnical and deep-foundation work. The company is also known for taking on difficult-access and unusual drilling projects, adapting its equipment and building custom tools when standard solutions fall short.MCKEES ROCKS, PA
Star Iron Works, IncWith roots dating to 1878, Star Iron Works manufactures and distributes drilling components for professional contractors, with the company’s drilling focus established in the mid-1950s. The family-owned and operated Pennsylvania manufacturer combines decades of hands-on expertise with custom tooling and field troubleshooting for difficult drilling jobs. Its 76,320-square-foot facility, more than 50 fabrication machines, and North American distribution network support work ranging from water wells to construction and energy applications.BIG RUN, PA
Eastern Driller ManufacturingEstablished in 1987, Eastern Driller Manufacturing makes American-made down-the-hole and horizontal directional drilling hammers, bits, and replacement parts from its factory in Pennsylvania. Located in Amish country, the company pairs a workforce rooted in local craftsmanship with CNC manufacturing and uses American steel tempered to its specifications. Eastern Driller serves drilling operations worldwide and supports customers with field-experienced sales representatives and job-site assistance.COLUMBIA, PA
OCI, LLCFounded in 1997 by people with hands-on experience across the drilling trade, OCI, LLC has grown from a new venture into a Brookville, Pennsylvania company serving construction drilling projects. It supports customers with custom drilling equipment and related services, including precision machining for demanding components. Its work also reaches environmental, mining, oil and gas, water and utility projects.BROOKVILLE, PA