Heil Trailer International LLC

Heil Trailer International LLC, doing business as Kalyn Siebert, manufactures specialized tactical trailers and mobile refueling systems for the Department of Defense as a prime contractor (85% of recent awards) and subcontractor on defense logistics programs, competing without set-aside designations in full-and-open procurements. The company is a for-profit limited liability corporation headquartered in Gatesville, Texas, operating under NAICS 336212 (Truck Trailer Manufacturing) and PSC 2330-P (Trailers), with secondary work in pumping equipment and automotive repair and maintenance.

The Marine Corps and the Army's Program Executive Office for Combat Support and Combat Service Support (PEO CSCSS) account for 30 of Heil Trailer's 53 awards (77% coverage) and $297.3 million of the combined potential value. The Marine Corps leads both volume (14 awards) and dollars ($161.2 million), while PEO CSCSS contributes 16 awards worth $136.1 million combined potential value. The top five customer organizations include the Defense Logistics Agency Land and Maritime, Naval Supply Systems Command, and the Army Materiel Command Communications Electronics Command, though these are substantially smaller by dollars. The two rankings align tightly — Marine Corps and PEO CSCSS dominate both award count and potential value.

Heil Trailer holds a $147.4 million single-award indefinite-delivery contract with the Marine Corps (award date April 16, 2025; completion April 15, 2030) for M870A2-OR suspension upgrade integration and modifications to the M870A2-S Medium Heavy Equipment Transporter. Since award, the Marine Corps has issued five delivery orders under this IDIQ, ranging from $86,774 to $6.3 million. The company also places work under Army IDCs: W56HZV-20-D-0047 (8 task orders, $54.1 million combined value), W56HZV-17-D-0008 (7 task orders), and M67854-25-D-0012 (5 task orders, $9.8 million combined value). Representative prime work includes a $12.1 million Ordering Year 6 delivery order from PEO CSCSS for 166 Mobile Tactical Retail Refueling Systems (MTRRS) units (awarded September 2, 2025; completion June 30, 2027), a $10.8 million Ordering Year 5 delivery order for 131 MTRRS units (awarded August 8, 2024; completion July 31, 2026), and a $6.3 million Marine Corps delivery order for M870A2-OR suspension upgrade procurement and integration (awarded May 2, 2025; completion January 15, 2028). These awards carry firm fixed-price terms and no set-aside designation.

Activity has remained steady at 6 awards per year for 2023, 2024, and 2025, with three awards recorded in 2026. Four awards carrying combined potential value of $20.5 million face ultimate completion within the next twenty-four months and therefore present recompete exposure. In its subcontractor role, Heil Trailer supplies welded ISO frame structures and ISO containers to DRS Sustainment Systems, Inc., on the Early Entry Fluid Distribution System (E2FDS) program, and supplies design-and-engineering work for RS-25 transport trailers to Aerojet Rocketdyne on Space Launch System engine production. The subcontract footprint is materially smaller than prime work and centers on containerized equipment and trailer components. Heil Trailer's core capability across both prime and sub work centers on manufacturing and integrating suspension systems, refueling equipment, and tactical trailers for military expeditionary logistics and fuel distribution operations, with all domestic performance in Gatesville, Texas.