CARDINAL ENGINEERING, LLC

Annapolis, MD · Defense · Private

AI-based autonomous domain control system for naval ship Hull, Mechanical & Electrical systems that deconflicts tasks, learns from experience, and adapts to changing environments

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Updated Oct 23, 2026 · cardinaleng.com

Sector: Defense
Headquarters: Annapolis, MD
Total capital: $34.4M

Federal grants: $1.2M; 5 awards · 2019–2025; Rank in peer group#69 of 89
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $33.2M; 37 awards · Defense, Veterans Affairs; Rank in Defense#189 of 1442
Granted patents: 1; 1 pending · first 2025; Rank in peer group#16 of 89

Capital timeline

Latest events

Jan 2026Federal contractDefense · Low Complexity Reviews (pws 3.1)$428K
May 2025Federal grantDefense · Phase I · Kickoff Briefing$140K
May 2025Federal contractDefense · Kickoff Briefing$140K
Apr 2025Federal contractDefense · Returning Exoatmospheric Unique Is Noval (return)$1.8M
Apr 2025Federal contractDefense · Low Complexity Reviews (pws 3.1)$248K
Apr 2025Federal contractDefense · Low Complexity Reviews (pws 3.1)$67K
Mar 2025Federal contractDefense · Submarine Shock Review Service$100K

Show 35 earlier federal awards

Feb 2025Federal contractDefense · Perform Investigation, Development, And Demonstration Of Power And Energy Focus Area Solutions Using A Four-phased Technical Development Approach--requirements Development, Tradespace Exploration, Solution Designs, And Solution Demonstrations.$1.2M
Sep 2024Federal grantDefense · Phase II · BASE$698K
Sep 2024Federal contractDefense · BASE$1.4M
Apr 2024Federal contractDefense · Submarine Shock Reviews Service$200K
Aug 2023Federal contractDefense · This Effort Willdevelop A Strategy To Generate A Roadmap That Will Move Todays State Of Art Robots To Future Robotic Systems Capable Of Performing Fully Autonomous Maintenance And Repair On Unmanned Shipboard Systems.$250K
Jul 2023Federal grantDefense · Phase I · Artificial Intelligence Based Ship Domain Autonomous Controller$140K
Jul 2023Federal contractDefense · Research And Development.$240K
Jun 2023Federal contractDefense · Low Complexity Reviews (pws 3.1.2)$250K
Apr 2023Federal contractDefense · Low Complexity Reviews$50K
Apr 2023Federal contractDefense · Low Complexity Reviews$13K
Sep 2022Federal contractDefense · 873 Authority. Energy Needs For Expeditionary Forces Supplied By Rocket Cargo Generated Delivery (energy)$1.2M
Aug 2022Federal contractDefense · Low Complexity Reviews$137K
May 2022Federal contractDefense · Low Complexity Reviews$49K
Dec 2021Federal contractDefense · SBIR Phase II.5$1.7M
Nov 2021Federal contractDefense · Medium Complexity Review$40K
Sep 2021Federal contractDefense · Post Award Conference$2K
Jul 2021Federal contractDefense · High Complexity$48K
May 2021Federal contractDefense · Low & High Complexity Reviews$47K
Feb 2021Federal contractDefense · Low, Medium & High Complexity Tasks For Shock Services$59K
Oct 2020Federal contractDefense · Engineering Shock Services To 2$53K
Sep 2020Federal contractDefense · First Do For Engineering Shock Services$41K
Apr 2020Federal grantDefense · Phase I · Dynamic Emulated System In Loop$100K
Aug 2019Federal contractDefense · New Medical R&d Contract, Army Phase I SBIR 2019.1, A191-058-0274, Project Titled "focused Microclimate Heating For Dexterity".$108K
Jul 2019Federal contractDefense · Submarine Shock Engineering Services$173K
May 2019Federal grantDefense · Phase I · Focused Microclimate Heating for Dexterity$108K
Jan 2019Federal contractDefense · Seaport Nxg Minimum Obligation Task Order.$500
Sep 2017Federal contractDefense · Igf::ct::igf$21.1M
Sep 2017Federal contractDefense · Igf::ot::igf Status Report$125K
Dec 2016Federal contractDefense · Base Igf::ot::igf$1.5M
Jul 2016Federal contractDefense · Emrg Engineering Support - Igf::ot::igf$144K
Aug 2015Federal contractDefense · Igf::ot::igf Status Report$150K
Aug 2015Federal contractDefense · Igf::ot::igf Service Of Integration Of Mfesm$82K
Aug 2015Federal contractDefense · Igf::ot::igf Service For Integration Of Emrg$41K
Aug 2011Federal contractVeterans Affairs · Safety Assessment$8K
Jun 2011Federal contractDefense · Seaport Enhanced$3K

Federal awards are summed by year (42 awards); hover a bar for the split. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 89 peers

Line = median

Defense · Software

Federal grantsBelow median
Granted patents#16 · top 18%

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 · 1 granted of 2

Nov 18, 2025GrantedExtremity HeaterUSPTOUS 12,471,644
PendingExtremity HeaterUSPTOApplication PCTUS2020045616

STILMAN ADVANCED STRATEGIES, LLCSimilar federal contract value in Defense · $34M in contracts
BerrieHill Research CorporationSimilar federal contract value in Defense · $33.9M in contracts
IRIS TECHNOLOGY CORPORATIONSimilar federal contract value in Defense · $33.5M in contracts
Conductive Composites Company, L.L.C.Similar federal contract value in Defense · $33M in contracts
MVP Robotics, Inc.Similar federal contract value in Defense · $32.2M in contracts
Applied Research In Acoustics LLCSimilar federal contract value in Defense · $32M 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.