High Energy X-Rays International Corp.

High Energy X-Rays International Corp., doing business as Hexi, manufactures and services industrial x-ray and radiographic inspection equipment for federal munitions and weapons programs, operating as a small business prime contractor (79% of recent awards) on full-and-open competition with no set-aside posture. Hexi is a for-profit manufacturer based in Wallingford, Connecticut, with a customer footprint concentrated almost entirely on Department of the Army programs, particularly the Joint Munitions Command's munitions quality assurance operations at Army ammunition plants.

Hexi's federal work centers on INDUSTRIAC x-ray machines and associated components — parts supply, preventative maintenance, emergency repair, and non-destructive testing services for industrial radiographic inspection systems. Recent representative prime awards include a $114,523.65 time-and-materials delivery order from Joint Munitions Command (October 2024) for labor and parts related to INDUSTRIAC S9X3000M and 450 kV CR NDT equipment; a $28,050 firm fixed-price delivery order (August 2024) for preventative maintenance, replacement parts, and training services to ensure functional x-ray imaging systems at Army ammunition plants; a $408,483.08 time-and-materials delivery order (March 2023) for service, maintenance, and repair of INDUSTRIAC machines at Letterkenny Munitions Center; and an $11,872.49 emergency repair purchase order (May 2026) for one-time repair of an INDUSTRIAC S9X3000M unit at Letterkenny Munitions Center.

Customer concentration is extreme. The Department of the Army Materiel Command's Joint Munitions Command accounts for 17 of 24 awards (100% coverage across top customers by award count and potential value) with $3.4 million in combined potential value. The Army Materiel Command's Research Development and Engineering Command holds 4 awards with no stated dollar magnitude, and Contracting Command Detroit Arsenal holds 2 awards worth $70 thousand. The Department of Energy National Nuclear Security Administration appears once in the portfolio.

Hexi holds five indefinite delivery contracts with Joint Munitions Command, generating task orders with combined potential values ranging from $115 thousand to $907 thousand per vehicle. IDC W911N221D0014 carries four task orders worth $907 thousand; IDC W911N217D0020 carries three task orders worth $324 thousand; and three additional contracts (W91CRB17D0009, W91CRB24D0014, and W911N225D0009) carry between one and two task orders each.

Activity has grown from one award in 2022 to five in 2024, with two awards in 2025 and one so far in 2026; combined potential value across all awards stands at $3.5 million with $1.9 million obligated. In its subcontractor role, Hexi supplies parts, labor, and repair services under primes including Joint Technical Solutions LLC (magnetron repair and Redstone test engineering services, March 2025 and 2025), Triad National Security LLC (laboratory equipment and scientific instrumentation for Los Alamos National Laboratory management contract, May 2024), and Astrion Group LLC (INDUSTRIAC machine maintenance and parts installation, July 2023 and March 2024). Hexi's NAICS footprint reflects maintenance and repair work in electronic and precision equipment (13 awards) and machinery and equipment repair (5 awards), with supporting work in research and development in the physical and engineering sciences (4 awards combined).