Oklo has bought Oak Ridge, Tenn.-based manufacturing and engineering company ARMEC to expand its own internal reactor and fuel manufacturing capabilities, the company said on Monday.
California-based Oklo said in a press release that the acquisition, closed on June 4, highlights the company’s broader strategy of “integrating critical execution capabilities closer to its reactor, fuel fabrication, and recycling programs as it advances from design into deployment.”
Oklo said it expects the transaction to acquire ARMEC to improve the company’s talent, capabilities and strategic relationships.
ARMEC, founded in 2002, is a manufacturing and mechanical engineering firm that specializes in nuclear manufacturing and fabrication. With the transaction completed, a team of 40 engineers, fabricators, welders and technical personnel will be added to Oklo’s programs.
The two companies have already been working together as ARMEC supported Oklo’s engineering teams in working on nozzle manufacturing from early test-fit hardware into more controlled manufacturing workflows. This would include drawing development, inspection planning and quality assurance procedures, according to the release.
“Advanced nuclear deployment requires manufacturing depth,” Oklo CEO and co-founder Jacob DeWitte said. “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.”
Oklo’s recent move to acquire ARMEC underlines the company’s presence in Oak Ridge. In September 2025, Oklo announced plans to build a $1.68 billion fuel recycling facility in Oak Ridge. The company said that the fuel facility would be the first phase of an advanced fuel center supporting recycling and fuel fabrication.