Millennitek, LLC

Millennitek, LLC is a for-profit limited liability company and manufacturer of specialized high-temperature ceramic materials headquartered in Knoxville, Tennessee. The company manufactures advanced ceramic components including alumina, boron carbide, silicon carbide, and zirconia products for applications in aerospace, defense, and energy sectors. Millennitek serves the federal government as both a prime contractor and subcontractor, with a strong track record of supporting innovative research and development initiatives across multiple civilian and defense agencies.

Through federal prime contract awards, Millennitek has provided specialized materials and research and development services across multiple programs and funding agencies. Most recently, the company received a $25,000 firm fixed-price purchase order from a civilian agency's Shared Services Center in December 2025 for enriched boron carbide shielding discs, with performance scheduled through June 2026 at the company's Cleveland, Ohio facility. The company has been particularly active in the National Aeronautics and Space Administration's Small Business Innovation Research program, having received a Phase II SBIR Definitive Contract valued at $848,341.00 for the development of regolith dust and radiation-tolerant bearings (completed July 2025), a Phase I SBIR award of $149,444.00 for research services (completed January 2023), and a Phase III SBIR contract valued at $24,998.00 for integral neutron and gamma shield material development (completed November 2022). Additional prime contract work includes a $16,488.81 purchase order from NASA for a silicon carbide compression platen (completed December 2023) and a significant $1,149,975.24 Firm Fixed Price contract from the Department of the Army Materiel Command Research Development and Engineering Command under the Small Business Technology Transfer program for development of a man-portable, direct-fuel capable tubular solid oxide fuel cell (completed December 2023). The majority of Millennitek's prime contracts have been designated as total small business set-asides under SBIR and STTR programs. Additionally, Millennitek has maintained a continuous subcontract relationship with Consolidated Nuclear Security, LLC since 2021, providing materials support through at least ten documented subcontract awards spanning from August 2021 through January 2025.

Through federal prime grant awards, Millennitek has conducted advanced materials research supported by the Department of Energy's Office of Science. The company received a $256,449.00 Project Grant for the development of multicomponent ceramic barrier coatings for hydrogen turbines, with research conducted between July 2023 and April 2024. Additional Department of Energy Office of Science grants include a Project Grant for cost reduction technology for neutron absorbers in microreactor applications (awarded June 2022, completed August 2024) and a $206,357.00 Project Grant for research on thin-film electrolytes for high-energy-density and low-cost polychalcogenide-based redox flow batteries (awarded February 2021, completed November 2021). These grants were awarded under the Office of Science Financial Assistance Program and demonstrate Millennitek's specialization in developing advanced materials for clean energy applications, including hydrogen turbine systems, microreactor technology, and energy storage solutions. All identified grant work has been conducted at Millennitek's Knoxville, Tennessee facilities, aligning with the company's core competencies in high-temperature ceramics and advanced materials development.