Underground Pipeline Inc.

Underground Pipeline Inc., doing business as UPI Manufacturing, is a self-certified small disadvantaged, Native American-owned business located in Eagle, Wisconsin. The company specializes in defense and space manufacturing, with a primary focus on producing specialized components and parts for military land and maritime vehicle systems. UPI Manufacturing has established itself as a critical supplier to the U.S. Department of Defense, leveraging its expertise in metal machining, fabrication, welding, and cutting services to meet the complex needs of military equipment procurement.

Throughout its federal contract history, UPI Manufacturing has consistently provided a diverse range of vehicular components and specialized parts to multiple defense agencies, primarily the Defense Logistics Agency (DLA) Land and Maritime. The company's contract portfolio demonstrates its capability to produce critical military vehicle elements, including vehicular doors, windows, transparent and supplemental armor, armor frames, cylinder assemblies, exhaust pipes, and various mounting brackets and accessory components. While many of its contracts are awarded on an unrestricted basis, UPI Manufacturing has also secured numerous contracts under total small business set-aside designations, working both as a prime contractor and a subcontractor for major defense firms such as Oshkosh Defense, General Dynamics, and BAE Systems.

UPI Manufacturing maintains several Indefinite Delivery Contracts (IDVs) with the Defense Logistics Agency Land and Maritime, with contract values ranging from $250,000 to over $1.75 million. These IDVs enable rapid procurement of essential military vehicle parts, covering a comprehensive range of components including transparent armor, doors, windows, cylinder assemblies, armor frames, and other specialized vehicular equipment. The company's IDVs serve as critical supply mechanisms for sustaining and replenishing inventories supporting U.S. military land and maritime vehicle systems. These contract vehicles demonstrate UPI Manufacturing's strategic importance in the defense supply chain, providing the Department of Defense with a reliable, agile, and specialized manufacturing partner capable of delivering high-quality, mission-critical components across various military platforms.