Oklo Inc. (NYSE: OKLO), an advanced nuclear technology company, has acquired ARMEC, a precision manufacturing and engineering firm headquartered in Oak Ridge, Tennessee.
The deal, which closed on June 4, 2026, expands Oklo’s in-house capabilities across its advanced reactor and fuel-manufacturing programs, supporting faster design-to-manufacturing feedback.
ARMEC is a precision machining and mechanical engineering company with more than two decades of operating experience serving nuclear, defense, energy, and research and development markets.
The firm employs approximately 40 engineers, fabricators, machinists, welders, and technical personnel, all with extensive nuclear industry experience and established supply chain relationships.
ARMEC’s capabilities span high-precision machining, prototyping, fabrication, inspection, procurement support, and mechanical engineering, making it a natural fit for Oklo’s deployment ambitions.
Prior to the acquisition, ARMEC had already supported Oklo’s engineering teams in maturing nozzle manufacturing workflows, including drawing development, inspection planning, quality assurance procedures, and supplier process troubleshooting.
“Advanced nuclear deployment requires manufacturing depth,” said Oklo CEO and co-founder Jacob DeWitte, adding that Oklo plans to continue investing in the local Oak Ridge workforce and community.
ARMEC President Travis Reagan said joining Oklo gives his team the opportunity to apply its experience to “one of the most important challenges in energy: building the manufacturing foundation needed to support advanced nuclear deployment.”
Founded in 2002, ARMEC has supported high-precision manufacturing work for major programs including U.S. ITER components for the international fusion project based in France.
ARMEC’s leadership will remain with the business following the acquisition to ensure customer continuity, preserve technical expertise, and maintain existing supplier relationships.
Oklo identified three primary areas of expected benefit from the deal: access to ARMEC’s specialized talent pool, expanded manufacturing and prototyping capabilities, and strategic supply chain relationships that improve visibility into industry-wide constraints.
During its most recent fiscal year, ARMEC generated positive free cash flow, reflecting the strength of its specialized capabilities and established business model.
The acquisition fits within Oklo’s broader strategy of bringing critical execution capabilities in-house as the company advances from the design phase into active deployment of its fast fission power plants.
Oklo was the first company to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission.
