STF Technologies LLC

STF Technologies LLC, a small business based in Newark, Delaware, conducts federally funded research and development in advanced materials and textile surface modifications as a prime contractor under SBIR and STTR programs and as a direct grant recipient, competing exclusively under small business set-asides.

STF Technologies specializes in shear thickening fluid (STF) armor materials, sintered powder textile surface modifications for extreme environments, lightweight composite structures, and protective innovations for aerospace and defense applications. The company has delivered Phase I and Phase II SBIR and STTR research contracts totaling millions in potential value, with representative work including a $849,999 STTR Phase II contract (Shared Services Center, ultimate completion August 2027) on sintered powder textile surface modification for extreme environments, two recent Phase I SBIR awards from the Shared Services Center in September 2026 for cellularly supported regolith shielding for inflatable lunar habitats ($222,393) and shear thickening fluid enhanced hybrid composite structures ($224,999), and a $259,612 SBIR Phase I contract from the Army's Program Executive Office Ammunition (completed September 2022) on materials characterization for ballistic protection.

Customer concentration is dominated by NASA. The National Aeronautics and Space Administration Shared Services Center accounts for 12 awards (95% of award count) and $3.9 million of the combined $4.1 million potential value across all 22 recent prime awards. The Department of Energy Office of Science has funded five awards, the Department of Commerce National Institute of Standards and Technology two, with single awards from the National Science Foundation and the Department of the Army rounding out a six-agency base. STF Technologies operates as a pure prime contractor; the source records zero subcontract activity.

The vendor's federal work sits exclusively within NAICS 541712 and related R&D categories, concentrated in space R&D services and general science and technology R&D. Recent grant work includes two Department of Energy Office of Science project grants (CFDA 81.049) — a $200,000 award (July 2024, completed July 2025) for a modified Wilhelmy apparatus for molten salt surface tension measurement and an award (February 2023) on a torsional resonator system for simultaneous density and viscosity measurement at high temperature — and a July 2025 Department of Energy Office of Science project grant on attack deterrent and ballistic-resistant substation component protection using STF-armor materials (ultimate completion October 2026). Activity has remained modest and flat across recent years — two awards each in 2022, 2023, and 2025, with one in 2024 and two in 2026 — with three awards (combined potential value $1.3 million) facing completion within the next twenty-four months.