D&P L.L.C.

Aerospace · Private

A multi-scale Lagrangian-Eulerian CFD algorithm for rotorcraft vorticity confinement simulation that models tip vortices without excessive numerical diffusion.

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Updated Oct 23, 2026 · d-p-llc.com

Sector: Aerospace
Total capital: $5.3M

Federal grants: $1.1M; 2 awards · 2015–2024; Rank in peer group#34 of 44
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $4.1M; 20 awards · NASA, Defense; Rank in Aerospace#367 of 1335
Granted patents: None on recordNo USPTO grants. Applications publish after 18 months.

Capital timeline

Latest events

Aug 2024Federal contractNASA · FY24 SBIR Phase I- A Gas-kinetic Relaxation Scheme For Fan Broadband Noise Prediction$150K
Jul 2024Federal grantNASA · Phase I · FY24 SBIR Phase I- A Gas-kinetic Relaxation Scheme For Fan Broadband Noise Prediction$150K
Jul 2022Federal contractNASA · E014042 SBIR Phase I A Wall-modeled Large-eddy-simulation Tool For Fan Broadband Noise Prediction$150K
Aug 2020Federal contractNASA · A Computational Tool For Fan Broadband Noise Prediction$125K
Aug 2019Federal contractNASA · An Artificial Intelligence Tool For Computational Sciences$125K
Jun 2017Federal contractNASA · Igf::ot::igf This SBIR Phase I Project Proposes To Develop A Fully Automated Mesh Generation Tool Which Contains Two Parts: Surface Mesh Generation From The Imported Computer Aided Design (cad) Models And Volume Mesh Generation From The Generated Surface Mesh. It Is Well Known That Cad Geometry Models Constructed For Manufacturing Purposes Are Generally Not Directly Useable By Computational Fluid Dynamics (cfd). Currently It Usually Takes Several Weeks To Repair And Defeature Cad Models For Sur$125K
Jan 2015Federal grantDefense · Phase II · Multiscale Lagrangian-Eulerian Algorithm for Determining the Vorticity Confinement Term for Rotorcraft Computational Fluid Dynamics (CFD) Computations$1.0M

Show 15 earlier federal awards

Oct 2013Federal contractDefense · SBIR Phase I Topic N132-092$150K
Aug 2013Federal contractDefense · Igf::ot::igf Bearing Analytical Software Development$150K
Jun 2013Federal contractDefense · Research&development$750K
Feb 2011Federal contractNASA · This SBIR Project Proposes To Develop A Computational Tool For Helicopter Rotor Noise Prediction Based On Hybrid Cartesian Grid/gridless Approach. The Uniqueness Of This Approach Is To Achieve Fully Automated Grid Generation Without Grid Overlapping. As A Result, The Resulting Software Will Enjoy Great Ease Of Use With Minimum Human Interference. There Is No Grid Distortion In The Majority Of The Computational Domain. One Can Apply The Best Available Flow Solver Which May Not Be Possible To Use $100K
Nov 2010Federal contractDefense · R&d SBIR Topic N103-195$80K
May 2010Federal contractDefense · R&d Topic N08-118$750K
Jul 2009Federal contractDefense · 432 D&p Llc Dc$75K
Mar 2009Federal contractDefense · D&p Llc SBIR Phase I$100K
Dec 2008Federal contractDefense · Darpa SBIR Ph II - Gas-kinetic Simulation Of Seperated Flows$750K
Aug 2008Federal contractDefense · SBIR P1 Topic N08-118$80K
Jul 2008Federal contractDefense · STTR Phase I Topic N08-T008$70K
Mar 2008Federal contractDefense · Aerolastic Simulation$100K
Jan 2008Federal contractNASA · Gas-kinetic Computational Algorithms For Hypersonic Flows In Continuum And Transitional Regimes$100K
Nov 2007Federal contractDefense · Research$99K
Jan 2007Federal contractNASA · SBIR Phase I, Gas Kinetic Navier Stokes Solver For Hypersonic Flows In Thermal And Chenical Non-equilibrum$100K

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 44 peers

Line = median

Aerospace · 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

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Array LabsSimilar federal contract value in Aerospace · $4.1M in contracts
LONGWAVE PHOTONICS LLCSimilar federal contract value in Aerospace · $4.1M 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.