Oklo announced the acquisition of ARMEC, a precision manufacturing and engineering company based in Oak Ridge, Tennessee, in a move designed to expand the advanced nuclear technology company’s vertically integrated manufacturing capabilities for reactor deployment and fuel-manufacturing programs.
The transaction, which closed on June 4, 2026, adds ARMEC’s engineering, fabrication, machining, welding, and manufacturing expertise to Oklo’s operations. The acquisition is part of Oklo’s broader strategy to bring critical execution capabilities closer to its reactor development, fuel fabrication, and fuel recycling initiatives as the company advances from design and development into commercial deployment.
Founded in 2002, ARMEC has more than two decades of experience serving customers across nuclear, energy, defense, and research markets. The company employs approximately 40 engineers, machinists, fabricators, welders, and technical specialists and maintains established relationships throughout the nuclear and industrial manufacturing supply chain. ARMEC’s capabilities include high-precision machining, prototyping, fabrication, inspection, procurement support, and mechanical engineering.
Oklo said ARMEC has already supported its engineering teams by helping mature manufacturing processes for reactor components, including nozzle production, quality assurance procedures, inspection planning, supplier troubleshooting, and drawing development. By bringing these capabilities in-house, Oklo expects to accelerate design-to-manufacturing feedback cycles and gain greater control over critical elements of its deployment schedule.
The company identified three primary benefits from the acquisition. First, ARMEC’s workforce adds specialized manufacturing and engineering talent to support reactor and fuel-production programs. Second, ARMEC’s testing, inspection, procurement, and prototyping capabilities are expected to support components and workflows critical to commercialization efforts. Third, ARMEC’s supplier and customer relationships provide additional visibility into supply chain challenges and opportunities for stronger industry coordination.
ARMEC was also a free cash-flow-generating business during its most recent fiscal year, highlighting the strength of its operations and specialized manufacturing capabilities.
Oklo is developing advanced fast fission power plants, nuclear fuel recycling technologies, and a domestic supply chain for critical isotopes. The company has received a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, secured fuel from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission.
KEY QUOTES:
“Advanced nuclear deployment requires manufacturing depth. ARMEC strengthens Oklo’s capabilities by expanding practical engineering, fabrication, inspection, and procurement. We plan to continue to invest in the local workforce and community to ensure ARMEC’s success and given Oak Ridge’s importance to us and the nuclear industry.”
Jacob DeWitte, CEO And Co-Founder, Oklo
“We have built ARMEC around practical execution, technical quality, and close customer collaboration. Joining Oklo gives our team the opportunity to apply that experience to one of the most important challenges in energy: building the manufacturing foundation needed to support advanced nuclear deployment. We are excited to bring our capabilities, supplier relationships, and Oak Ridge–based team into Oklo as we continue supporting customers and expanding the role our work can play in the nuclear supply chain.”
Travis Reagan, President, ARMEC
