Lowell Digisonde International, LLC

Lowell, MA · Aerospace · Private

Miniaturized topside ionospheric sounder instrument (CubeTIS) for nanosatellites that measures electron density profiles and assimilates data into ionospheric models for real-time forecasting

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Updated Oct 23, 2026 · digisonde.com

Sector: Aerospace
Headquarters: Lowell, MA
Total capital: $4.7M

Federal grants: $274K; 2 awards · 2015–2020; Rank in peer group#117 of 197
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $4.5M; 17 awards · Defense; Rank in Aerospace#354 of 1335
Granted patents: None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

Latest events

Aug 2023Federal contractDefense · Ordering Period Three Ionospheric Sounder Kit$327K
Feb 2021Federal contractDefense · Minimum Idiq Purchase, 1 Sounder Kit$286K
Aug 2020Federal grantNASA · Phase I · A Cubesat Based System for Topside Ionospheric Sounding$124K
Feb 2020Federal contractDefense · Ionospheric Sounder Kit$279K
Sep 2019Federal contractDefense · Quad Receiver Digisonde Portable Sounder$477K
Feb 2017Federal contractDefense · Igf::ot::igf Lowell Oblique-ionogram Autoscaler$308K
Feb 2017Federal contractDefense · Ldi Spare Parts$27K

Show 12 earlier federal awards

Feb 2016Federal contractDefense · Quad Receiver Digisonde Portable Sounder$192K
Jun 2015Federal grantDefense · Phase I · Lowell Oblique-Ionogram Autoscaler$150K
Apr 2015Federal contractDefense · Quad Reciever Digisonde Portable Sounder 4D,4 Receiving Turnstile Loop Antennas, 4 Polarization Swtiches/preamplifiers,set Of Critical Spares, Equipment Packaging And Marking For Export$200K
Aug 2014Federal contractDefense · Igf::ot::igf Real Time Edp And Tid Specification Retid;$744K
Mar 2014Federal contractDefense · Upgrade The Digital Portable Sounder Dps$174K
Oct 2013Federal contractDefense · Igf::ot::igf Double-probe&topside-ionosphere-sounder Dptis$822K
Sep 2013Federal contractDefense · Igf::ot::igf SBIR 1- Rapid Edp And Tid Specifications For Othr Applications$149K
Jul 2012Federal contractDefense · A Small Satellite-based System For Active And Passive Sounding Of The Ionosphere, Direct Current (dc) Through High Frequ$149K
May 2012Federal contractDefense · Ldi Digisonde Extended Warranty$6K
Mar 2012Federal contractDefense · Upgrade Digital Portable Sounder$71K
Mar 2011Federal contractDefense · Spare Parts For The Haarp Digisonde In Gakona, Ak.$19K
Oct 2010Federal contractDefense · Quad Receiver Digisonde Portable Sounder$222K

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 197 peers

Line = median

Aerospace · Satellite · Instrument

Federal grantsBelow median

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

No granted patents are on record.

USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.

Checked: USPTO granted patents and published applications · Oct 23, 2026

ADVANCED OPTICAL TECHNOLOGIES INCSimilar federal contract value in Aerospace · $4.5M in contracts
BALCONES TECHNOLOGIES LLCSimilar federal contract value in Aerospace · $4.5M in contracts
RELATIVE DYNAMICS INCSimilar federal contract value in Aerospace · $4.5M in contracts
ODYS AVIATION, INC.Similar federal contract value in Aerospace · $4.4M in contracts
ADIABATICS, INCORPORATEDSimilar federal contract value in Aerospace · $4.4M in contracts
Launchpoint Electric Propulsion Solutions, Inc.Similar federal contract value in Aerospace · $4.4M in contracts

Regulatory activity · Aerospace

Sector-level, not company-level

06 Jul 2026Nondiscrimination in Federally Assisted Programs of NASA-Effectuation of Title VI of the Civil Rights Act of 1964National Aeronautics and Space Administration
01 Jul 2026Special Conditions: AMAC Aerospace, The Boeing Company Model 747- 8 Airplane; Side-Facing SeatsFederal Aviation Administration
26 Jun 2026Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous AmendmentsFederal Aviation Administration
23 Jun 2026Operating Limitations at John F. Kennedy International AirportFederal Aviation Administration
23 Jun 2026Operating Limitations at New York LaGuardia AirportFederal Aviation Administration
18 Jun 2026Special Conditions: Honeywell Aerospace US LLC, Dassault Aviation Model Falcon 900EX Airplane; Electronic System Security Protection From Unauthorized External AccessFederal Aviation Administration

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.