21ST CENTURY SYSTEMS, INC.

Defense · Private

Evolutionary Algorithm-based optimization software for reactive aircraft maintenance scheduling that reschedules depot operations in response to unforeseen failures

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Updated Oct 23, 2026

Sector: Defense
Total capital: $75.4M

Federal grants: $150K; 1 award · 2014; Rank in peer group#22 of 24
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $75.3M; 61 awards · Defense, Interior; Rank in Defense#108 of 1442
Granted patents: None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

Latest events

Jul 2015Federal contractDefense · Igf::ot::igf Topic: AF131-204 Continuation$24K
Oct 2014Federal grantDefense · Phase I · Ramses$150K
Apr 2014Federal contractDefense · Igf::ot::igf Topic: AF131-204$148K
Oct 2013Federal contractDefense · Igf::ot::igf Voxel Fusion For Multiphysics-based Sensor Fusion$150K
Feb 2013Federal contractDefense · SBIR I - Autonomously Locating To Perch And Stare (alps)$150K
Sep 2012Federal contractDefense · Igf::ot::igf STTR Ph I Research&development Contract$100K
May 2012Federal contractDefense · Small Business Innovation Research Program (SBIR) Phase I Action For Context Independent Anomaly Detection For Enhanced Decision Making$100K

Show 54 earlier federal awards

Apr 2012Federal contractDefense · Fusion With Uncertainty Reasoning Using Nested Assessment Characterizer Elements (furnace)$150K
Apr 2012Federal contractDefense · Phase II Small Business Innovation Research$725K
Jul 2011Federal contractDefense · SBIR$95K
Mar 2011Federal contractDefense · Phase I SBIR$100K
Mar 2011Federal contractDefense · Basic$299K
Jan 2011Federal contractDefense · Report$70K
Nov 2010Federal contractDefense · SBIR Phase 1 Entitled "casual View"$70K
Nov 2010Federal contractDefense · R&d SBIR Topic# N103-205$80K
Sep 2010Federal contractDefense · SBIR Phase I Systems - Agent Design Environment Project$100K
Sep 2010Federal contractDefense · 16 Month R&d Effort For "mobile Localization"$903K
Jun 2010Federal contractDefense · Task 6: Discovery Enhancements$856K
Jun 2010Federal contractDefense · SBIR II$750K
Mar 2010Federal contractDefense · Phase I SBIR$120K
Mar 2010Federal contractDefense · SBIR Phase II Transmission Surveillance (transurv)system$716K
Mar 2010Federal contractDefense · First Status Report$100K
Jan 2010Federal contractDefense · (STTR Phase II) Concurrent Agent-enabled Feature Extraction (cafe)$750K
Nov 2009Federal contractDefense · Research And Development$610K
Sep 2009Federal contractDefense · SBIR Pi Topic #N092-096$80K
Aug 2009Federal contractDefense · Research$99K
May 2009Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$70K
Mar 2009Federal contractDefense · SBIR 1 2009 , Af 08.3$100K
Feb 2009Federal contractDefense · Space-ace$100K
Oct 2008Federal contractDefense · SBIR Phase I Topic A08-082 For Transmission Surveillance System$120K
Oct 2008Federal contractDefense · (STTR Phase 1) Coolaid$100K
Sep 2008Federal contractDefense · Webster Ace - Labor$5.8M
Sep 2008Federal contractDefense · (STTR Phase 1) Concurrent Agent-enabled Feature Extraction (cafe)$100K
May 2008Federal contractDefense · SBIR Phase 1 Research - DOD Solicitation 7.3 Topic #N07-189$70K
Apr 2008Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$376K
Apr 2008Federal contractDefense · Research And Development In Biotechnology$1.5M
Mar 2008Federal contractDefense · R&d Fuel Efficiency Economizer Viper$100K
Mar 2008Federal contractDefense · First Status Report$70K
Jan 2008Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$923K
Jan 2008Federal contractDefense · SBIR I$100K
Nov 2007Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$30K
Oct 2007Federal contractDefense · U435CFE Phase I STTR Power: Political Will Expert Reasoning Tool$100K
Sep 2007Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences$3.4M
Aug 2007Federal contractDefense · Jsids Labor, Odcs, And Travel$860K
Apr 2007Federal contractDefense · Research And Development To Improve The Quality And Speed Of Accessibility Of Logistics Data By Aggregating Afloat Logistics Data Into A Consolidated Repository And Delivering It To Users Ashore.$2.6M
Mar 2007Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences$398K
Mar 2007Federal contractInterior · Dhs SBIR 6.2 Phase I - Hierarchical Grid Referenced Normalized Display (hgrnd)$100K
Feb 2007Federal contractDefense · 21ST Century Systems$750K
Aug 2006Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences$2.4M
May 2006Federal contractDefense · 200608!421672!1700!N68335!NAVAL Air Engineering Station !N6833506C0297 !a!n! !y! ! !20060516!20080516!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000000375000!N!N!000001614991!AC62!RDTE/ELECTRONICS & Communication Eq-applied Resea !A7 !electronics And Communication Equip !000 !not Discernable !541710!E! !3! ! ! ! ! !999$735K
May 2006Federal contractDefense · 200608!005769!5700!FA8650!DET 1 Afrl/pk !FA865006C6633 !a!n! !y! ! !20060503!20080407!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000000250000!N!N!000000749994!AZ11!RDTE/OTHER Research & Development-basic Research !C9E!ALL Other Supplies And Equipment !000 !not Discernable !541710!E! !3! ! ! ! ! !999$750K
Apr 2006Federal contractDefense · 200608!427311!1700!N00024!NAVAL Sea Systems Command !N0002406C4113 !a!n! !n! ! !20060413!20080414!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000000200000!N!N!000000749993!AC31!RDTE/SHIPS-BASIC Research !S1 !services !210 !sbirs High !541710!E! !3! ! ! ! ! !999$750K
Sep 2005Federal contractDefense · N0001405C0523$499K
Sep 2005Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences$486K
Aug 2005Federal contractDefense · 200512!489983!1700!N00024!NAVAL Sea Systems Command !N0002405C4158 !a!n! !n! ! !20050830!20060830!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000000150000!N!N!000000749820!AC31!RDTE/SHIPS-BASIC Research !S1 !services !210 !sbirs High !541710!E! !3! ! ! ! ! !202$1.4M
Jun 2005Federal contractDefense$14.2M
May 2005Federal contractDefense · 200508!000149!5700!FA8651!DET 1 Afrl/mnk !FA865105C0139 !a!n! !y! ! !20050502!20070429!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!37017!173!31!OMAHA (township Of) !thurston !nebraska !+000000499999!N!N!000000499999!AC56!RDTE/WEAPONS-MANAGEMENT Support !A5 !weapons !000 !* !541710!E! !3! ! ! ! ! !202$699K
Mar 2005Federal contractDefense · 200506!003508!1700!N00014!OFFICE Of Naval Research !N0001404C0252 !a!n! !n! ! !20050328!20060930!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000001074190!N!N!000000000000!AD93!RDTE/OTHER Defense-adv Tech Dev !S1 !services !000 !* !541512!E! !3! ! ! ! ! !202$2.2M
Feb 2005Federal contractDefense · 200505!047670!1700!N00024!NAVAL Sea Systems Command !N0002405C6300 !a!n! !n! ! !20050228!20060221!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!37000!055!31!OMAHA !douglas !nebraska !+000003080000!N!N!000025912207!AZ14!RDTE/OTHER Research & Development-demo/valid !S1 !services !000 !* !541330!E! !3! ! ! ! ! !202$13.3M
Nov 2004Federal contractDefense · 200502!002786!1700!N00014!OFFICE Of Naval Research !N0001404C0367 !a!n! !n! ! !20041105!20060731!949183701!949183701!949183701!N!21ST Century Systems, Inc !12152 Windsor Hall Way !herndon !VA!20170!36648!059!51!HERNDON !fairfax !virginia !+000003834000!N!N!000000000000!AD91!RDTE/OTHER Defense-basic Research !S1 !services !000 !* !541710!E! !3! ! ! ! ! !202$9.8M
Sep 2003Federal contractDefense$3M

Federal awards are summed by year (61 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.

1 record has no date or no amount, so it isn’t placed on the timeline.

Standing among 24 peers

Line = median

Defense · Software

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

OPTIMAL SOLUTIONS INCSimilar federal contract value in Defense · $77.9M in contracts
SEALANDAIRE TECHNOLOGIES, INC.Similar federal contract value in Defense · $77.1M in contracts
IBC MATERIALS AND TECHNOLOGIES, LLCSimilar federal contract value in Defense · $76.2M in contracts
GLOBAL AIR LOGISTICS AND TRAINING, INC.Similar federal contract value in Defense · $74.8M in contracts
Radiance Technologies, Inc.Similar federal contract value in Defense · $73.8M in contracts
PACKET DIGITAL LLCSimilar federal contract value in Defense · $73.7M 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.