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The Defense Sciences Office (DSO) is one of the technical offices of the U.S. Defense Advanced Research Projects Agency (DARPA). Searchers use both “DARPA DSO” and “DARPA Defense Sciences Office” for the same thing. As described on the official DARPA page on 2026-10-29, DSO’s mission is to “identify and spearhead the next generation of scientific discovery”. For a research office, the practical point is that DSO publishes no standing eligibility rules or application steps of its own: those come with each solicitation, so this guide separates what the DSO page states from what you must read in a given announcement.
What DARPA DSO is and who runs it
DSO sits inside DARPA, a defense-wide agency organized into technical offices. The official DSO page says the office aims to create strategic surprise advantage by pushing technology toward its fundamental scientific limits. DARPA’s office pages are the authoritative description of what each office does; the DSO page is at darpa.mil/about-us/offices/dso (checked 2026-10-29).
The page says DSO research programs “are finite in duration”. DARPA lists its program managers on a separate program managers page. For the wider structure of DARPA and the other defense research funders, see the CASRAI guide to the DoD research funding landscape.
DSO thrust areas
As described on the official page on 2026-10-29, DSO organizes its work into four thrust areas:
- Materials, Manufacturing, and Energy Systems: “Breaking the tensions between performance and efficiency for new materials”, plus manufacturing flexibility, propulsion and energy availability.
- Sensing, Measuring, and Affecting: “Pushing the fundamental limits for orders-of-magnitude improvement in awareness, communications, and control.”
- Math, Computation, and Processing: “Enabling quantum, and reimagining classical, computing for enhanced efficiency and new capabilities.”
- Complex, Dynamic, and Intelligent Systems: “Revolutionizing scientific methods for harnessing complex and adaptive systems, from materials to human-machine ecosystems.”
Eligibility: what the official page says and does not say
The DSO office page does not state eligibility rules, proposal steps or timelines, and it names no specific programs; its program section only offers search filters. Eligibility is therefore set per solicitation. As a worked example, the DSO Pitch Day solicitation (DARPA-PA-26-01) published FAQs dated 10/21/25 that cover who may submit and how (DSO Pitch Day FAQ, PDF, checked 2026-10-29). Those answers belong to that one solicitation, not to DSO in general. Before a university or company commits effort, check the eligibility section of the specific announcement and register in the systems it names; the FAQ, for example, refers to registration in PIEE.
What DSO funds or requires
The DSO page describes three kinds of engagement: R&D programs and efforts, challenge competitions, and technology transition efforts. Specific funding terms appear only in the solicitation. In the Pitch Day example, the FAQ describes:
- an Other Transaction (OT) for Research award of “$400k total, 9-month period of performance, and no subawardees, profit, travel, or publication costs” (answer to Q31);
- no consultants or subawardees, although vendor services and prime employees are allowed (answer 31A);
- a plan to treat the work as Fundamental Research, with no publication restrictions if so (answer 33A);
- model OT terms, with no other negotiated changes expected (answer 32A).
OT awards sit outside the usual grant and contract rules. The CASRAI guide to Other Transaction Authority explains how they differ, and the fundamental research exemption entry covers the publication question.
Application steps, using the Pitch Day solicitation as the example
The steps below are those of one solicitation (DARPA-PA-26-01, FAQ as of 10/21/25), not a standing DSO procedure. Other DSO announcements, including office-wide Broad Agency Announcements, set their own packages. For the general mechanism, read Broad Agency Announcement (BAA) and How to Write a DARPA BAA White Paper.
- Submit an abstract package through the Broad Agency Announcement Tool (BAAT). The principal investigator or an administrative contact may submit (answer 24A). The abstract deadline in that solicitation was October 27 at 12:00 p.m. ET (answer 35A).
- Package contents: an abstract (a 1-page executive summary plus at most 4 pages of technical content), a draft Pitch Day Proposal in PowerPoint, and two NSF Common Disclosure Forms, the Biosketch and the Current and Pending Support form (answers 23A, 26A, 27A, 29A).
- Final pitch: a six-slide Pitch Day Proposal, delivered as an oral pitch of at most 7 minutes at Pitch Day in Orlando, FL (answers 34A, 36Q).
- Award: the FAQ describes award execution within 5 business days or 30 calendar days following the event (answer 36A).
Typical timeline phases
Timelines are set per solicitation, so this guide gives phases rather than dates. In the Pitch Day example the sequence was: abstract submission, a short oral pitch, then OT award execution after the event. Programs run for a finite period, as the DSO page states, and the example award had a 9-month period of performance. To track new calls as they appear, the DSO page offers a sign-up for DSO updates and an RSS feed of DARPA opportunities (DARPA opportunities).
Common mistakes
- Treating one solicitation’s rules as DSO’s rules. The $400k, 9-month, no-subawardee terms above belong to the Pitch Day example only.
- Planning a subaward-based team for a call that, like the Pitch Day example, does not permit subawardees or consultants.
- Missing the system registration the announcement names (PIEE appears in the Pitch Day FAQ) until after the deadline.
- Assuming publication is restricted or unrestricted without reading the announcement; the Pitch Day FAQ states its fundamental-research position, other calls may differ.
- Confusing DSO with another DARPA office. DARPA has other technical offices, such as the one covered in DARPA MTO.
Related programs and pages
| Page or resource | What it covers |
|---|---|
| DARPA MTO | Another DARPA technical office, covered in its own CASRAI guide |
| DoD research funding landscape | DARPA alongside the other defense research funders |
| IARPA funding model vs DARPA | How the two agencies’ funding models compare |
| NDSEG fellowship | A defense-funded graduate fellowship, a separate route from DARPA programs |
| DARPA challenges | Challenge competitions, listed by DARPA as a way to engage with DSO |
| Disruptioneering | A DARPA resource linked from the DSO page |
FAQ
What does DARPA DSO stand for?
DSO stands for Defense Sciences Office, a technical office of DARPA. “DARPA DSO” and “DARPA Defense Sciences Office” refer to the same office.
What are DSO’s thrust areas?
Materials, Manufacturing, and Energy Systems; Sensing, Measuring, and Affecting; Math, Computation, and Processing; and Complex, Dynamic, and Intelligent Systems, as described on the official page on 2026-10-29.
How do I find DSO funding opportunities?
The DSO page points to the DARPA opportunities listing, an opportunities RSS feed and a DSO updates sign-up. Each opportunity states its own eligibility and submission rules.
Does DSO have one standard application process?
The DSO page describes none. Each solicitation defines its own package, deadlines and award type; the Pitch Day example above shows one such route.
Sources
- DARPA, Defense Sciences Office: https://www.darpa.mil/about-us/offices/dso (checked 2026-10-29).
- DARPA, DSO Pitch Day Solicitation (DARPA-PA-26-01) FAQs, as of 10/21/25: dso-pitch-day-faq.pdf (checked 2026-10-29).
