STF TECHNOLOGIES LLC

Newark, DE · Materials · Private

Multi-frequency torsional resonator system for simultaneous measurement of density and viscosity of molten salts at high temperature

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Updated Oct 23, 2026 · stf-technologies.com

Sector: Materials
Headquarters: Newark, DE
Total capital: $8.5M

Federal grants: $6M; 13 awards · 2017–2026; Rank in peer group#4 of 10
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $2.5M; 7 awards · NASA, Defense; Rank in Materials#117 of 1258
Granted patents: 6; 9 pending · first 2019; Rank in peer group#2 of 10

Capital timeline

Latest events

Sep 2026Federal grantNASA · Phase I · SBIR Phase 1 Cellularly Supported Regolith Shielding (csrs) For Inflatable Lunar Habitats$222K
Sep 2026Federal grantNASA · Phase I · SBIR Phase I Lightweight, Shear Thickening Fluid Enhanced Hybrid Composite Structures$225K
Feb 2025Federal grantNASA · Phase II · STTR Phase II - "sintered Powder Textile Surface Modification For Extreme Environments"$850K
Feb 2025Federal contractNASA · STTR Phase II - "sintered Powder Textile Surface Modification For Extreme Environments"$850K
Jul 2023Federal grantNASA · Phase I · Sintered Powder Textile Surface Modification for Extreme Environments$150K
Feb 2023Federal grantEnergy · Phase I · Torsional Resonator System for the Simultaneous Measurement of Density and Viscosity at High Temperature$257K
Jul 2022Federal grantNASA · Phase I · Multi-Functional Environmental Protection Garment Shell Textile for Extreme Surface Environments$156K

Show 13 earlier federal awards

Mar 2022Federal contractDefense · Phase I SBIR Effort With Stf Technologies Llc.$260K
Jul 2021Federal grantDefense · Phase I · Resilient, Impact Resistant Baseplate with STF Energy Absorbing Layer Hybrid Composites$260K
May 2021Federal grantEnergy · Phase II · RheoSurfR – Neutron Reflectivity-Rheology Sample Environment for Studying Soft Matter, Biology and Materials Processing at Air-Liquid and Liquid-Liquid Interfaces$1.1M
Jun 2020Federal contractNASA · Stf-enhanced Textiles For Durable, Puncture- And Cut-resistant Epgs$165K
Apr 2020Federal grantEnergy · Phase II · 4D Rheo-SANS Sample Environment for Soft Matter, Biology and Materials Processing$1.0M
Feb 2020Federal contractNASA · Fabric Treatment With Shear Thickening Fluids$25K
Aug 2019Federal grantNASA · Phase I · MISSE Testing of Impact-Resistant, Damage-Tolerant Composites with STF Energy Absorbing Layers$125K
Feb 2019Federal grantEnergy · Phase I · 4D Rheo-SANS Sample Environment for Soft Matter, Biology and Materials Processing$150K
Sep 2018Federal grantNASA · Phase II · Impact-Resistant, Damage-Tolerant Composites with STF Energy Absorbing Layers$747K
Sep 2017Federal grantNASA · Phase II · Shear Thickening Fluid Enhanced Textiles for Durable, Puncture- and Cut-Resistant Environmental Protection Garments$750K
Sep 2017Federal contractNASA · Igf::ot::igfthis Small Business Technology Transfer Research Phase II Will Develop And Advance The Commercialization Of Stf-armortm Nanocomposite Materials For Use In Environmental Protection Garments (epg) For Extended Exploration Missions In Diverse Environments, Including Leo, Cis-lunar Space, And Lunar And Martian Surfaces. The Phase II Research Will Optimize And Deliver A Validated Prototype Suit Component With An Epg Containing Stf-armortm Textiles That Offer Superior Crew Protection To Me$940K
Jun 2017Federal contractNASA · Igf::ot::igf We Propose An Innovative Hybrid Composite That Combines The Smart Energy-absorbing Shear Thickening Fluids (stf) With Validated Hard Upper Torso Composite Materials To Create New Stf Composite Structures With Superior Impact And Damage Resistance And Self-healing Functionality. The Proposed Innovation Directly Addresses The Subtopic H04.01 Need For Thin, Lightweight Composite Materials That Can Be Fabricated In Complex Geometries. Stfs Are Currently Being Developed By NASA And Stf $125K
Jun 2016Federal contractNASA · Igf::ot::igf This Small Business Technology Transfer Research Phase I Proposal Will Develop And Advance The Commercialization Of Stf-armortm Nanocomposite Materials For Use In Environmental Protection Garments (epg) For Long-duration Exploration Missions, Such As The Exploration Of Mars. The Proposed STTR Research Leverages The Results Of Nasa-sponsored Research Conducted At The University Of Delaware, Combined With A Commercialization Pathway Provided By Stf Technologies Llc And Our Commercial$125K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 10 peers

Line = median

Materials · Instrument

Federal grants#4 · top 40%
Granted patents#2 · top 20%
Linked publications#1 · top 10%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

USPTO · 6 granted of 15

Feb 17, 2026GrantedImpact-resistant, Damage Tolerant Composites With Shear Thickening Fluid Layers And Uses ThereofUSPTOUS 12,552,132
Jan 6, 2026GrantedSample Cell and Support Assembly for Enhanced Rheological Measurements of Soft Matter and MaterialsUSPTOUS 12,517,026
Aug 15, 2024PendingHigh-throughput High-pressure Small-angle Neutron Scattering Sample Cells And EnvironmentsUSPTOApplication 18439505

Show all 15 patent records

Impact-resistant, Damage Tolerant Composites With Shear Thickening Fluid Layers And Uses ThereofFeb 17, 2026 · US 12,552,132Granted
Sample Cell and Support Assembly for Enhanced Rheological Measurements of Soft Matter and MaterialsJan 6, 2026 · US 12,517,026Granted
High-throughput High-pressure Small-angle Neutron Scattering Sample Cells And EnvironmentsAug 15, 2024 · Application 18439505Pending
High Tenacity Textiles Containing Shear Thickening Fluid And Uses ThereofMar 12, 2024 · US 11,926,959Granted
Movement-reactive Athletic Apparel And Methods Of Making The SameSep 19, 2023 · US 11,758,953Granted
Movement-reactive Athletic Apparel And Methods Of Making The SameJul 21, 2020 · US 10,716,338Granted
Movement-reactive Athletic Apparel And Methods Of Making The SameApr 2, 2019 · US 10,244,801Granted
Sample Cell And Support Assembly For Enhanced Rheological Measurements Of Soft Matter And MaterialsApplication PCTUS2021032763Pending
Neutron Reflectivity-rheology Sample Environment For Investigating Materials At Air-liquid And Liquid-liquid Interfaces And Methods Of Use ThereofApplication 63349961Pending
High-throughput High-pressure Small-angle Neutron Scattering Sample Cells And EnvironmentsApplication 63484645Pending
Sample Cell And Support Assembly For Enhanced Rheological Measurements Of Soft Matter And MaterialsApplication 63026364Pending
Impact-resistant, Damage Tolerant Composites With Shear Thickening Fluid Layers And Uses ThereofApplication PCTUS2019042011Pending
High Tenacity Textiles Containing Shear Thickening Fluid And Uses ThereofApplication PCTUS2019040541Pending
Neutron Reflectivity-rheology Sample Environment For Investigating Materials At Air-liquid And Liquid-liquid Interfaces And Methods Of Use ThereofApplication PCTUS2023024481Pending
Neutron Reflectivity-rheology Sample Environment For Investigating Materials At Air-liquid And Liquid-liquid Interfaces And Methods Of Use ThereofApplication 18872554Pending

Recent research by its founders

Development and Evaluation of a Woven-Nonwoven Hybrid Environmental Protection Garments (EPG) Shell Textile for Lunar Exploration Mission20250 cites
Sinter Coated Environmental Protection Garments (EPG) Shell Textiles for Lunar Extravehicular Activity (EVA)20250 cites
Evaluation of Environmental Protection Garments (EPG) Shell Textiles for Lunar Exploration Mission20240 cites

Gamma Alloys, Inc.Similar federal contract value in Materials · $2.7M in contracts
PHOTOTHERMAL SPECTROSCOPY CORP.Similar federal contract value in Materials · $2.6M in contracts
GLOBAL RESEARCH & DEVELOPMENT INCSimilar federal contract value in Materials · $2.6M in contracts
Impressio, Inc.Similar federal contract value in Materials · $2.5M in contracts
AMERICAN BORONITE CORPORATIONSimilar federal contract value in Materials · $2.4M in contracts
VORBECK MATERIALS CORP.Similar federal contract value in Materials · $2.3M in contracts

Regulatory activity · Materials

Sector-level, not company-level

24 Apr 2026Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through Oct 23, 2026. SBIR and STTR awards through Oct 21, 2026.