THIRD FLOOR MATERIALS, INC.

Raleigh, NC · Materials · Private

Plasmonic rectenna device for infrared detection and emission at ambient temperatures using MIM tunnel diodes and Bragg reflectors

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Updated Oct 23, 2026

Sector: Materials
Headquarters: Raleigh, NC
Total capital: $2M

Federal grants: $655K; 3 awards · 2020–2025; Rank in peer group#23 of 23
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $1.4M; 6 awards · NASA, Defense; Rank in Materials#157 of 1258
Granted patents: 2; first 2024; Rank in peer group#8 of 23

Capital timeline

Latest events

Jun 2025Federal contractDefense · F24A-T005-0063 Third Floor Materials Inc, The Third Floor Materials, In Partnership With Ncsu, Propose A 6-MONTH Effort To Explore The Feasibility Of Compressive Hyperspectral Sensing Using Plasmonic Free-form Filter Arrays.$180K
May 2025Federal grantDefense · Phase I · F24A-T005-0063 Third Floor Materials Inc, The Third Floor Materials, In Partnership With Ncsu, Propose A 6-MONTH Effort To Explore The Feasibility Of Compressive Hyperspectral Sensing Using Plasmonic Free-form Filter Arrays.$180K
Jun 2022Federal grantDefense · Phase I · Epsilon-near-zero tunneling diodes for room-temperature IR detectors and light sources$250K
Jun 2021Federal contractDefense · Army SBIR Phase II For The Proposal Entitled "optical Limiter Based On Epsilon-near-zero Materials"$645K
May 2020Federal grantNSF · Phase I · STTR Phase I: Algorithmic Mid-Infrared Spectroscope Utilizing Narrow-Band, Epsilon-Near-Zero Thermal Emitters$225K
Jan 2020Federal contractDefense · Polaritonic Epsilon Near Zero Absorber For Synthetic IR Signature Control$108K
Sep 2019Federal contractDefense · Optical Limiter Based On Epsilon-near-zero Materials, SBIR Phase I$150K

Show 2 earlier federal awards

Feb 2019Federal contractDefense · Feasibility Study, SBIR Phase I, Topic SOCOM183- 003, Partner Force Identification Friend Or Foe$146K
Jun 2016Federal contractNASA · Igf::ot::igf Using Novel Materials And Device Geometries Unique To North Carolina State University (ncsu) And Third Floor Materials (3FM) This Program Will Develop A Detector Technology That Enables Room-temperature Multispectral IR Imaging By Exploring Transduction Pathways Between Infra Red Light And A Measureable Electric Signal Mediated By An Epsilon-near-zero (enz) Mode. The Research Activity Will Use A Combination Of Physical Vapor Deposition, Conventional Microelectronic Fabrication Meth$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 23 peers

Line = median

Materials · Device

Federal grantsBelow median
Granted patents#8 · top 35%
Linked publications#1 · top 4%

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 · 2 granted of 2

Jan 28, 2025GrantedFilterless Non-dispersive Infrared Sensing Devices And MethodsUSPTOUS 12,209,949
Jun 25, 2024GrantedSurface With Tunable Emissivity Based On Epsilon-near-zero Materials And Patterned SubstratesUSPTOUS 12,019,208

Recent research by its founders

Filterless Nondispersive Infrared Sensing using Narrowband Infrared Emitting Metamaterials202141 cites
Critical Test of the Interaction of Surface Plasmon Resonances with Molecular Vibrational Transitions20206 cites
Multiple Epsilon-Near-Zero Resonances in Multilayered Cadmium Oxide: Designing Metamaterial-Like Optical Properties in Monolithic Materials201951 cites

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Azul 3DSimilar federal contract value in Materials · $1.4M in contracts
Applied ColloidsSimilar federal contract value in Materials · $1.3M in contracts
Modula S IncSimilar federal contract value in Materials · $1.3M in contracts
Material Hybrid Manufacturing IncSimilar federal contract value in Materials · $1.3M 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.