DIU (Defense Innovation Unit) is the fastest path from commercial startup to defense contract, with $979 million in FY2026 funding, prototype agreements awarded in 60-90 days, and a 51% transition rate from prototype to production. DIU offers something no SBIR program can: a direct line to defense procurement without FAR compliance overhead, without peer review panels, and without the 9-18 month timelines that define traditional defense funding.
But DIU isn't SBIR. It doesn't fund R&D. It funds prototypes of solutions that already work commercially and need to be adapted for military use. If your startup has a working product and a plausible defense application, DIU might be the most efficient path to your first defense contract.
What is DIU and why is it different from SBIR?
DIU was established in 2015 to bridge the gap between Silicon Valley and Pentagon procurement. The core premise: the commercial tech sector builds capabilities the military needs, but traditional defense acquisition is too slow and too bureaucratic to access them. DIU's job is to fix that.
The practical difference from SBIR programs is fundamental:
| Dimension | DIU (CSO) | SBIR (e.g., AFWERX) |
|---|---|---|
| What it funds | Prototypes of existing commercial solutions | Early-stage R&D for new technologies |
| Technology readiness | TRL 5-7+ (working prototype or product) | TRL 2-5 (concept to early prototype) |
| Award mechanism | Other Transaction (OTA) | Grant or contract (FAR-based) |
| Typical Phase I | $500K-$5M (prototype OT) | $75K-$305K |
| Timeline to award | 60-90 days | 4-12 months |
| FAR compliance | None | Required for most agencies |
| Follow-on path | Sole-source production contract | Phase II SBIR ($1M-$2M) |
| Who reviews | DIU staff + military end-user | Agency review panel |
The key insight: If your technology is still in the "does this work?" phase, you need SBIR. If your technology works commercially and you're asking "can this solve a defense problem?", you need DIU. Cada Partners helps defense-tech startups navigate both pathways -- and the decision between them is one of the most common questions we answer in Strategy Reviews.
CSO vs. SBIR vs. DARPA BAA: a comparison
| Feature | DIU CSO | SBIR | DARPA BAA |
|---|---|---|---|
| Innovation source | Commercial (adapt for defense) | Government-directed R&D topics | Open research challenges |
| Company maturity | Commercial product exists | Early-stage startup OK | Research capability required |
| Award size | $500K-$5M+ (prototype) | $75K-$305K (Phase I) | $500K-$10M+ |
| Speed | 60-90 days to contract | 4-12 months | 6-18 months |
| IP terms | OTA-negotiated (flexible) | SBIR data rights | Varies (OTA or FAR) |
| Competition | Commercial companies | Small businesses only (<500 emp.) | Open to all |
| Follow-on | Sole-source production | Phase II, then Phase III | Program extensions |
| End goal | Procurement and deployment | R&D results | Technology demonstration |
DIU's seven focus areas and what they fund
DIU operates across seven technology portfolios. Under new director Owen West (appointed March 2026), priorities are narrowing to focus on technologies that can be fielded within three years with clear warfighter impact.
| Portfolio | FY2026 Funding | Focus Areas |
|---|---|---|
| AI/ML | $30.9M | Data analytics, predictive maintenance, logistics optimization, intelligence analysis, autonomous decision-making |
| Autonomy | $10.9M | Unmanned aerial systems, ground robots, maritime platforms, drone defense, swarm technologies |
| Cyber and Telecom | Active | Defensive cyber capabilities, threat detection, network resilience, 5G/ORAN |
| Energy | Active | Operational energy, microgrids, battery technology, alternative fuels |
| Human Systems | Active | Medical technology, human performance, wearables, training systems |
| Space | $22.1M | Hybrid Space Architecture, resilient communications, satellite servicing, space domain awareness |
| Emerging Technology | New portfolio | Quantum, biotech, advanced materials, novel sensing |
The OTA advantage: why startups prefer Other Transactions
DIU exclusively uses Other Transaction Authority (10 USC 4022) for prototype agreements. For startups accustomed to commercial contracting, OTAs remove most of the friction that makes traditional defense contracts painful:
What OTA eliminates:
- Federal Acquisition Regulation (FAR) compliance
- Defense Contract Audit Agency (DCAA) audits
- Cost Accounting Standards (CAS)
- Truth in Negotiations Act (TINA) requirements
- Competition in Contracting Act restrictions on follow-on
What OTA provides:
- Negotiated (not prescribed) IP terms
- Milestone-based payments tied to deliverables
- Commercial-style contracting terms
- 60-90 day award timeline
- Direct path to sole-source production contract
The production follow-on is the real prize. Under 10 USC 4022, any prototype OT agreement can lead to a sole-source production contract or agreement without additional competition. The prototype is your audition. If you deliver, the production contract follows -- and it can be worth significantly more than the prototype. This is why Cada often recommends DIU as a second or third step in a defense funding strategy, after an initial SBIR proves the technology.
How the CSO process works (prototype to production)
Step 1: CSO Posted. DIU publishes a Commercial Solutions Opening describing a specific military problem. Example: "Counter-UAS Sensing" or "Adaptive Manufacturing at Scale." CSOs are posted at diu.mil/work-with-us/open-solicitations.
Step 2: Solution Brief Submitted. You submit a short solution brief (typically 5-10 pages) through DIU's portal. The brief describes your commercial solution, how it addresses the military need, and your proposed approach to prototype adaptation.
Step 3: Pitch Day. Selected companies present to DIU technical staff and the military end-user (the "warfighter stakeholder"). This is where commercial product demos and live demonstrations carry weight.
Step 4: Selection and OT Negotiation. DIU selects one or more companies and negotiates the prototype OT agreement. Timeline: 60-90 days from selection to signed agreement.
Step 5: Prototype Execution. You adapt your commercial solution for the military use case and demonstrate it in an operational or near-operational environment. Typical prototype period: 6-18 months.
Step 6: Transition Decision. If the prototype meets requirements, DIU and the military service pursue a production contract or agreement. 51% of completed DIU prototypes have transitioned to production (as of FY2023, based on 450 awards and 62 transitions).
What does DIU look for in a solution brief?
DIU's evaluation criteria are different from SBIR. They don't care about scientific novelty or research methodology. They care about:
Existing commercial capability. Your solution should be working in the commercial market or in late-stage development. DIU doesn't fund basic research.
Military applicability. You need a clear, credible story about how your commercial solution addresses a specific defense need. "Our supply chain AI could optimize military logistics" is a starting point -- but you need specifics about which logistics problems, for which service, in which operational context.
Speed to deployment. DIU exists because traditional acquisition is too slow. If your prototype will take 3 years to adapt, DIU isn't the right vehicle. Think months, not years.
Scalability. Can your solution be produced and deployed at the scale the military needs? A one-off demo isn't enough. DIU wants to see a path to thousands of units or enterprise-wide deployment.
Nontraditional contractor status. While not strictly required, DIU strongly favors "nontraditional defense contractors" -- companies that haven't done significant DoD business before. This preference is written directly into the OTA statute.
Eligibility: who can (and can't) apply
- You have a commercial product or late-stage prototype (TRL 5+)
- Your technology has a plausible defense or national security application
- You can demonstrate the solution in an operational environment within 6-18 months
- You're a "nontraditional defense contractor" (haven't done major DoD business)
- You can move at commercial speed (not government speed)
- You're still in the research or early development phase (TRL 1-4)
- You need funding to figure out if your technology works (that's SBIR territory)
- You can't articulate a specific military use case
- Your solution requires classified development from the start
- You need more than $5M just for the prototype phase
- You don't have a commercial customer base or revenue (with rare exceptions)
Nontraditional defense contractor definition: Under 10 USC 4022, this means an entity that (a) hasn't performed on any DoD contract or subcontract subject to full CAS coverage in the past year, OR (b) is a nonprofit or academic institution, OR (c) has never done any DoD work. Most startups qualify automatically.
The prototype agreement: typical terms, amounts, and timeline
| Element | Typical Range |
|---|---|
| Prototype OT value | $500K-$5M (varies widely by scope) |
| Duration | 6-18 months |
| Payment structure | Milestone-based (3-6 milestones typical) |
| IP terms | Negotiated -- you retain commercial IP, government gets license for defense use |
| Reporting | Lighter than FAR contracts (monthly or quarterly progress reports) |
| Government furnished equipment | Sometimes provided for testing in military environments |
| Security | Most prototype work is unclassified |
Cost sharing is not required but can strengthen your proposal. If you're willing to co-invest (in-kind or cash), it signals commitment and can differentiate your bid from competitors asking for full funding.
From prototype to production: the transition pathway
The 51% transition rate is real -- but it's not automatic. Transition depends on:
Military end-user commitment. A service branch needs to want your solution badly enough to fund production. DIU connects you to the right people, but the buying decision is theirs.
Budget availability. The service needs to have or find production funding. This can take time even when everyone agrees the technology works.
Acquisition pathway. Production can go through traditional contract vehicles, other OTAs, or direct commercial procurement. DIU helps navigate this, but the bureaucracy doesn't disappear entirely.
Since 2016: 450 prototype OT contracts awarded across 389 unique vendors, totaling $1.7 billion. 62 commercial solutions have transitioned to warfighter production. The remaining 49% includes projects still in prototype, projects that missed requirements, and projects where the military need shifted.
Should your startup apply to DIU or SBIR?
The sweet spot: You have a commercial product that works, a team that can execute a prototype in 6-18 months, and a defense use case you can articulate in specific terms. You'd rather move fast with a prototype OT than spend 12 months writing an SBIR proposal for $150K.
The honest assessment: DIU is competitive. They receive far more solution briefs than they can fund. Your commercial product needs to be genuinely relevant to a current military need -- not a theoretical connection. Before submitting, talk to military end-users if possible, or at least study the specific CSO to understand what problem they're trying to solve.
If you're earlier-stage and need R&D funding first, consider AFWERX SBIR (Air Force), DARPA BAAs, or the broader defense tech funding landscape. DIU works best as the second or third step in a defense funding strategy -- after you've proven the technology works.
How to find and respond to open CSOs
Current openings: diu.mil/work-with-us/open-solicitations
Monitor for new CSOs:
- Sign up for email notifications on diu.mil
- Follow DIU on LinkedIn for announcements
- Check SAM.gov for DIU solicitations
- Track BW&CO's DIU page and similar aggregators
When you find a relevant CSO:
- Read the entire solicitation, including evaluation criteria and the problem statement
- Confirm your solution addresses the specific military need described (not a tangential one)
- Prepare a concise solution brief -- lead with the capability, not your company story
- Demonstrate commercial traction (customers, revenue, deployments)
- Show you can deliver a prototype in the proposed timeline
- Submit through DIU's portal before the deadline
For help determining whether DIU or another defense pathway fits your technology, our Strategy Review maps your startup to the best-fit programs across all defense agencies. We've written proposals for AFWERX, DARPA, and multi-agency defense strategies for startups at every stage.