SENTEK INSTRUMENT, LLC

Blacksburg, VA · Clean tech · Private

Fiber optic sensing system for distributed electromagnetic and acoustic monitoring of subsurface carbon dioxide plumes

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Updated Oct 23, 2026

Sector: Clean tech
Headquarters: Blacksburg, VA
Total capital: $713K

Federal grants: $450K; 2 awards · 2023–2025; Rank in peer group#19 of 35
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $263K; 3 awards · Defense, NASA; Rank in Clean tech#78 of 914
Granted patents: 5; 6 pending · first 2017; Rank in peer group#2 of 35

Capital timeline

Latest events

Jun 2026Federal contractNASA · Fiber Optic Sensor For Use In A Novel Microwave Ignition System$51K
Sep 2025Federal grantDefense · Phase I · Requirements SBIR Phase I, PROPOSAL#F24D-T001-0005, Robust Multi-parameter Sensor For Rotating Detonation Engine Applications Sentek Instrument Llc, UEI:ZS23VTZH6MQ6, Cage: 6REZ6$200K
Sep 2025Federal contractDefense · Requirements SBIR Phase I, PROPOSAL#F24D-T001-0005, Robust Multi-parameter Sensor For Rotating Detonation Engine Applications Sentek Instrument Llc, UEI:ZS23VTZH6MQ6, Cage: 6REZ6$200K
Feb 2025Federal contractDefense · Fs-inscribed Reflector Arrays In Optical Fiber For Radiation Measurements.$12K
Jul 2023Federal grantEnergy · Phase I · Distributed Fiber Optic Electromagnetic Sensing For Subsurface Monitoring Of Carbon Storage Sites$250K

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 35 peers

Line = median

Clean tech · Device

Federal grantsBelow median
Granted patents#2 · top 6%

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 · 5 granted of 11

May 7, 2026PendingTunable Lasers And Their Sensing ApplicationsUSPTOApplication 19117460
Feb 29, 2024PendingSystems And Methods For Fiber Optic Fourier Spectrometry MeasurementUSPTOApplication 18260172
Oct 19, 2021GrantedSapphire Sensor For Measuring Pressure And Temperature With Improved Stress And Temperature Variation CompensationUSPTOUS 11,150,144

Show all 11 patent records

Tunable Lasers And Their Sensing ApplicationsMay 7, 2026 · Application 19117460Pending
Systems And Methods For Fiber Optic Fourier Spectrometry MeasurementFeb 29, 2024 · Application 18260172Pending
Sapphire Sensor For Measuring Pressure And Temperature With Improved Stress And Temperature Variation CompensationOct 19, 2021 · US 11,150,144Granted
Sapphire Sensor Apparatus Including an Optical Fiber For Measuring Pressure and Temperature.Dec 3, 2019 · US 10,495,525Granted
Optical Sensing FiberSep 10, 2019 · US 10,408,995Granted
Sapphire Sensor For Measuring Pressure And TemperatureOct 31, 2017 · US 9,804,033Granted
Serial Fiber Bragg Grating Interrogator With A Pulsed Laser For Reflection Spectrum MeasurementJun 13, 2017 · US 9,677,957Granted
Sapphire Sensor For Measuring Pressure And TemperatureApplication PCTUS2014035451Pending
Method And Apparatus For Distributed SensingApplication PCTUS2016062756Pending
Tunable Lasers And Their Sensing ApplicationsApplication PCTUS2023034617Pending
Systems And Methods For Fiber Optic Fourier Spectrometry MeasurementApplication PCTUS2022011461Pending

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Regulatory activity · Clean tech

Sector-level, not company-level

09 Jul 2026Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
02 Jul 2026Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
02 Jul 2026Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
30 Jun 2026Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
30 Jun 2026Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
30 Jun 2026Chlormequat Chloride; Pesticide TolerancesEnvironmental Protection Agency

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.