APSIDAL LLC

Riverside, CA · Defense · Private

high-quantum efficiency fiber amplifiers for directed energy and infrared applications

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Updated Oct 23, 2026 · apsidal.org

Sector: Defense
Headquarters: Riverside, CA
Total capital: $13.8M

Federal grants: $5.2M; 8 awards · 2019–2026; Rank in peer group#73 of 164
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $8.6M; 9 awards · NASA, Defense; Rank in Defense#426 of 1442
Granted patents: None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

Latest events

Apr 2026Federal contractDefense · SBIR Phase I, Topic Number O254-009, Faraday Optical Isolator On A Photonic Integrated Laser Circuit$314K
Apr 2026Federal grantDefense · Phase I · SBIR Phase I, Topic Number O254-009, Faraday Optical Isolator On A Photonic Integrated Laser Circuit$314K
Dec 2025Federal contractNASA · A Study Of Quantum Sensing And Communications Applications For Exotic Optical Fibers Manufactured From Materials Produced In Space$214K
Oct 2025Federal grantDefense · Phase II · Research And Development$500K
Oct 2025Federal contractDefense · Research And Development$1.0M
Aug 2025Federal grantDefense · Phase II · SBIR II: Superior High-energy Fiber-laser Optical Isolators Proposal Number: F2-18567$1.8M
Aug 2025Federal contractDefense · SBIR II: Superior High-energy Fiber-laser Optical Isolators Proposal Number: F2-18567$1.8M

Show 10 earlier federal awards

Mar 2025Federal contractDefense · Sbir/sttr Phase II R&d$2M
Mar 2025Federal grantDefense · Phase II · Sbir/sttr Phase II R&d$2M
Jul 2024Federal grantDefense · Phase I · STTR Phase I Under Topic N24-T0001.$240K
Jul 2024Federal contractDefense · STTR Phase I Under Topic N24-T0001.$240K
Apr 2024Federal grantDefense · Phase I · SBIR I - Superior High-energy Fiber-laser Optical Isolators$180K
Apr 2024Federal contractDefense · SBIR I - Superior High-energy Fiber-laser Optical Isolators$180K
Nov 2021Federal grantDefense · Phase I · Fiber Amplifier Manufacturing with in-situ Dopant Profile Evaluator$50K
Jun 2020Federal contractNASA · Study For Leo Demands$2.7M
Nov 2019Federal grantDefense · Phase I · Modeling of Fiber Laser Refractive Index Profiles and Dopant Index Profiles for Predicting High Power Fiber Laser Performance$100K
Aug 2019Federal contractNASA · Laser-doppler-anemometry Assisted Hyper-cognitive Manufacturing In Microgravity.$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 164 peers

Line = median

Defense · Device

Federal grants#73 · top 45%

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

APPLIED MATHEMATICS, INC.Similar federal contract value in Defense · $8.8M in contracts
PHELPS2020, INCSimilar federal contract value in Defense · $8.6M in contracts
Barnstorm Research CorporationSimilar federal contract value in Defense · $8.6M in contracts
General Nano LLCSimilar federal contract value in Defense · $8.6M in contracts
NOVA PHOTONICS INCSimilar federal contract value in Defense · $8.6M in contracts
PERCEPTIVE INNOVATIONS, INC.Similar federal contract value in Defense · $8.5M in contracts

Regulatory activity · Defense

Sector-level, not company-level

11 Jun 2026Danger Zone; Waters of Carr Creek and Whitehall Bay in the Vicinity of the Naval Support Activity AnnapolisEngineers Corps
13 Mar 2026Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; IntroductionNational Aeronautics and Space Administration
13 Mar 2026Federal Acquisition Regulation: Trade Agreements ThresholdsNational Aeronautics and Space Administration
13 Mar 2026Federal Acquisition Regulation; Federal Acquisition Circular 2026-01; Small Entity Compliance GuideNational Aeronautics and Space Administration
27 Aug 2025Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; Small Entity Compliance GuideNational Aeronautics and Space Administration
27 Aug 2025Federal Acquisition Regulation; Federal Acquisition Circular 2025-06; IntroductionNational Aeronautics and Space 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.