PLIANT ENERGY SYSTEMS INC

Clean tech · Private

Self-powered pump system for extracting water from flowing water sources

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Updated Oct 23, 2026

Sector: Clean tech
Total capital: $13.7M

Federal grants: $893K; 3 awards · 2013–2026; Rank in peer group#2 of 35
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $12.8M; 8 awards · Defense; Rank in Clean tech#8 of 914
Granted patents: 1; 1 pending · first 2025; Rank in peer group#4 of 35

Capital timeline

Latest events

May 2026Federal grantDefense · Phase II · Onr SBIR Phase 2 Pliant Energy Systems Inc.$543K
May 2026Federal contractDefense · Onr SBIR Phase 2 Pliant Energy Systems Inc.$543K
Apr 2026Federal contractDefense · SBIR Phase I, Topic Number A254-P039, Xtechsearch 9 SBIR Finalist Open Topic Competition$250K
Mar 2026Federal grantDefense · Phase I · SBIR Phase I, Topic Number A254-P039, Xtechsearch 9 SBIR Finalist Open Topic Competition$250K
Aug 2025Federal contractDefense · Continued Research And Development Of Pliant Energys Novel Propulsion And Unmanned Vehicle Technologies In The Service Of Mine Counter Measure Operations And Will Incorporate And Add Self-charging Capability To Vehicles.$500K
Apr 2024Federal contractDefense · Stealthy, Autonomous, Propeller-less, Agile (sapa) Vehicle For Mine Countermeasures$5.1M
Aug 2021Federal contractDefense · An Ai-enabled Autonomous Amphibious Vehicle$4.4M

Show 4 earlier federal awards

Sep 2016Federal contractDefense · Igf::ct::igf Undulatory Propulsion System$1.4M
Jul 2013Federal grantAgriculture · Self-powered Pump To Extract Water From A Flowing Water Source$100K
Sep 2012Federal contractDefense · R&d- Defense Other: Other (management/support)$300K
May 2011Federal contractDefense · Optical Instrument And Lens Manufacturing$149K

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 grants#2 · top 6%
Granted patents#4 · top 11%

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

Apr 1, 2025GrantedUndulating Transducer For Energy Harnessing And Propulsion Apparatuses, Methods And SystemsUSPTOUS 12,264,666
PendingUndulating Transducer For Energy Harnessing And Propulsion Apparatuses, Methods And SytemsUSPTOApplication PCTUS2023015090

Antares Group IncorporatedSimilar federal contract value in Clean tech · $15.9M in contracts
SOUTHWEST SCIENCES INCSimilar federal contract value in Clean tech · $13.8M in contracts
ITN ENERGY SYSTEMS, INC.Similar federal contract value in Clean tech · $13.7M in contracts
RADIATION DETECTION TECHNOLOGIES, INC.Similar federal contract value in Clean tech · $12.5M in contracts
OTHER LAB, INC.Similar federal contract value in Clean tech · $12.3M in contracts
PORIFERA, INC.Similar federal contract value in Clean tech · $10M in contracts

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.