Cathode Advancements in Science and Technology for Oxygen Resistance (CASTOR)
Dept of Defense · DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)
This notice is not accepting responses (deadline was Apr 26, 2026, 8:00 PM EDT).
Page kept for research and related open opportunities below. For current work in this category, use the related notices or browse hubs.
- Response deadline
- Apr 26, 2026, 8:00 PM EDT
- Posted
- Mar 12, 2026
- Solicitation
- DARPA-PA-25-07-03
- Set-aside
- None listed
- Place of performance
- —
- Contracting office
- DEF ADVANCED RESEARCH PROJECTS AGCY · ARLINGTON · VA
- Source
- SAM.gov · updated May 9, 2026
Description
The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is issuing a Disruption Opportunity (DO), inviting submissions of innovative basic or applied research for efficient, high-performance, long-lived oxygen-compatible cathodes for use in air-breathing very low earth orbit (VLEO) electric propulsion (EP) systems. This DO is issued under the Program Announcement for Disruptioneering, DARPA-PA-25-07. All awards will be made in the form of an Other Transaction (OT) for Prototype project. The total award value for the combined Phase 1 base (Feasibility Study) and Phase 2 option (Proof of Concept) is limited to $900,000 (see Section I.C for information more information on phase structure). This total award value includes Government funding and performer cost share if required or proposed. To view the DARPA Program Announcement (PA) for Disruptioneering, visit SAM.gov under solicitation number DARPA-PA-25-07: https://sam.gov/opp/bae5fa32f4ee4cdb9a070a14309b2c66/view.
What similar awards have paid
Real federal awards already on the books in a similar lane — so you can size the opportunity, not guess. This is public history, not a bid price, cost estimate, or prediction that you will win.
Typical award size
$2.45M
Middle of the pack for similar past awards
Most similar awards fall between $832,508 and $14.31M
Who has won work like this
Public awardees in this lane — useful for competitor scan or teaming ideas, not a ranked list of “best” firms.
- 1G2 OPS, INC.1 award$119.09M
- 2LINQUEST CORPORATION2 awards$112.86M
- 3SEHLKE CONSULTING LLC2 awards$50.13M
- 4MILE TWO LLC5 awards$45.31M
- 5NIMBIS SERVICES INC1 award$32.87M
- 6GALOIS, INC.1 award$28.02M
- 7EDAPTIVE COMPUTING INC3 awards$23.96M
- 8TENET 3, LLC2 awards$19.53M
Recent examples
A few of the newest similar awards in our index.
- MILE TWO LLCSep 29, 2025General Services Administration$68.39MSource
- KBR WYLE SERVICES, LLCSep 29, 2025General Services Administration$14.58MSource
- UNITED STATES COAST GUARD ACADEMY SPONSORED PROGRAMS AND RESEARCH, INCSep 26, 2025Department of Homeland Security$249,811Source
- APTIMA INCSep 25, 2025General Services Administration$5.85MSource
- SEHLKE CONSULTING LLCSep 25, 2025General Services Administration$38.57MSource
- INTERNATIONAL INSTITUTE FOR SUSTAINABLE DEVELOPMENT - INSTITUT INTERNATIONAL DU DEVELOPPEMENT DURABLSep 25, 2025Department of Homeland Security$36,500Source
Drawn from official USAspending contract records in our index. Always confirm requirements on the SAM.gov notice before you bid.
Intelligence only — not legal advice or a guarantee of award. Always verify requirements on the official SAM.gov notice. Past award amounts are public history, not a suggested bid or prediction. Notice ID 0f3678f0c676408ebdd2b40703463157.