Tri-Form, Inc. (TFI) is an AS9100-certified, ITAR-registered manufacturer known for responsive communication and dependable lead times. The Pittsburgh-area company helps engineers and procurement teams move programs from prototype through production, with precision machining and welding supported by documented quality and design-for-manufacturing feedback.
ITAR-compliant and registered
Compliance program
ISO-compliant
Compliance program
AS9100 certification (pursuing)
ISO
Quality certification
Triangle Precision Industries, IncFounded in 1982, Triangle Precision Industries is a Kettering, Ohio machine shop known for supporting prototype and short-run production work. Its single-source approach keeps complex projects under one roof for customers in aerospace, defense, medical and other technology-driven industries. Triangle holds ISO 9001:2015 and AS 9100D certification and is ITAR registered.DAYTON, OH
TrimMasterSince 1938, TrimMaster has evolved from the Textile Trimming and Boarding Company into a Pennsylvania job shop known for making custom parts for manufacturers and engineers. Its 66,000-square-foot Temple facility supports single-part and low-volume work, with particular strength in CNC machining and certified welding. The company is ITAR-registered and maintains an ISO 9001:2015-compliant quality system for projects that require documented control.332312TEMPLE, PA
Three Rivers PrecisionFounded by Pittsburgh engineers Sean Handerhan and Sinjon Bartel, Three Rivers Precision is a small CNC machining company built around hands-on manufacturing experience and practical problem-solving. With more than a decade in the industry, the founders work with customers on prototype machining and production needs, serving fields such as aerospace and robotics. The company holds AS9100D and ISO 9001 certification.EAST LIBERTY, PA
Tri-CNCFamily-owned Tri-CNC is a Gaithersburg machine shop focused on CNC mill and lathe machining, helping customers move from prototypes to production with three-, four- and five-axis capabilities. With more than 20 years of machining experience, the shop also handles custom fitments, CMM inspection reports and CNC machine calibration, serving clients nationwide. Tri-CNC is ITAR registered and ISO 9001:2015 compliant, with experience supporting NASA as well as aerospace, automotive and optical-instrumentation work.GAITHERSBURG, MD