DoD SBIR/STTR Program: A Guide for Small Businesses

The Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) programs are the federal government's primary investment vehicle for small business technology development. For technology companies with capabilities in defense, cybersecurity, aerospace, materials science, autonomous systems, or biomedical research, DoD SBIR represents one of the most accessible paths to federal contracting.

DoD awards approximately $3–4 billion annually in SBIR and STTR funds — more than any other federal agency. This guide covers how the programs work, how to select the right topics, and how to compete successfully.

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What Is SBIR/STTR?

Both programs provide federal funding for small business research and development with a requirement that the resulting technology have potential for commercialization (including sale to the federal government).

Key differences:

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DoD SBIR/STTR: Program Mechanics

The Three Phases

Phase I: Feasibility Study

• Purpose: Determine whether the proposed R&D is technically feasible
• Award amount: Up to $250,000 (DoD standard)
• Period: 6–12 months
• Success rate: Approximately 15–25% of submitted proposals are awarded

Phase I is a research contract, not a grant. You are expected to deliver a feasibility report demonstrating that your proposed technology can solve the problem defined in the solicitation topic.

Phase II: Full R&D

• Purpose: Full development and demonstration of the proposed technology
• Award amount: Up to $1.75 million (DoD standard); some programs offer higher
• Period: 24 months
• Eligibility: Must have completed Phase I
• Success rate: Approximately 40–50% of Phase I awardees receive Phase II

Phase II is where the real technology development happens. The deliverable is typically a prototype, working system, or advanced proof-of-concept.

Phase III: Commercialization

• Purpose: Commercializing Phase II technology for government or private sector use
• Funding: NOT from SBIR funds — from non-SBIR government contracts, private investment, or non-SBIR grants
• Key benefit: DoD can award Phase III contracts sole-source (FAR 6.302-5) to SBIR companies — no competition required

Phase III is the commercialization phase and the ultimate goal. A DoD component can issue a non-competitive production contract for SBIR-developed technology — this is the pathway from funded research to real defense contracts.

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DoD SBIR Solicitations: How They Work

DoD conducts three SBIR solicitations per year (typically in January, April, and September). Each solicitation is organized by Component:

• Army
• Navy (including Marine Corps)
• Air Force (including Space Force)
• DARPA
• MDA (Missile Defense Agency)
• SOCOM (Special Operations Command)
• DHA (Defense Health Agency)
• Other defense components

Within each component, the solicitation contains topics — specific technology needs defined by DoD scientists, engineers, and program managers.

SBIR.gov (the official DoD SBIR/STTR portal) lists all open topics during a solicitation window. Each topic has:

• Topic number and title
• Description of the military problem or technology need
• Phase I and Phase II objectives
• Contact information for the Technical Point of Contact (TPOC)

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Selecting the Right Topics

Topic selection is the most critical decision in the SBIR process. Submitting a great proposal to the wrong topic wastes both your effort and the DoD's evaluation time.

Criteria for evaluating topics:

Technical fit: Does your core capability directly address the specific technical challenge in the topic? Topics are narrow — a cybersecurity firm should not apply to a materials science topic because cybersecurity is generally useful.

Commercialization potential: Will the technology developed in this topic be useful beyond the DoD (commercial market, other agencies)? SBIR proposals are evaluated in part on commercialization potential.

Program alignment: Is there an existing DoD program that would benefit from this technology? Topics from active acquisition programs have stronger Phase III paths than theoretical research.

Contact the TPOC: Before submitting, contact the Technical Point of Contact listed in the topic. A brief email or call to understand the specific technical gap the topic is trying to address is legitimate and recommended. Evaluators appreciate that you understand the real requirement.

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Writing a Winning SBIR Proposal

The Five Key Sections

Section 1 — Technical Approach Describe specifically HOW you will solve the technical problem in the topic. Evaluators are subject matter experts — generic descriptions fail. Be specific about methods, algorithms, materials, testing approaches, and expected outcomes.

Section 2 — Phase I and Phase II Objectives State what you will demonstrate in Phase I (feasibility) and what you will deliver in Phase II (working prototype). These must be realistic and achievable in the stated timeframe.

Section 3 — Related Work Demonstrate your technical background. Cite relevant prior research, patents, previous contracts, published papers. Establish that you have the technical foundation to execute.

Section 4 — Commercialization Plan SBIR proposals are evaluated on commercialization potential. Describe:

• The DoD or government market for the technology (Phase III path)
• The commercial market (private sector applications)
• Your company's commercialization resources and track record

Section 5 — Key Personnel List the Principal Investigator (PI) and other key technical staff. For Phase I, the PI must be qualified to lead the proposed research. Phase I evaluators weight the PI's technical credentials heavily.

Common SBIR Proposal Mistakes

Too generic: Describing capabilities rather than the specific technical approach to this specific topic.

Misunderstood the topic: The proposal addresses a different aspect of the problem than the topic intended. Cure: contact the TPOC first.

Unrealistic Phase I scope: Proposing too much work for 6 months and $250,000. Reviewers are skeptical of overambitious Phase I objectives.

Weak commercialization section: The tech is interesting but you have not demonstrated a credible path to actually selling it. A strong commercialization section includes named potential customers, letters of intent, or existing commercial relationships.

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DoD SBIR Program Resources

SBIR.gov: Official DoD solicitation portal. Search by agency, topic area, and keyword.

SBIR.gov "Submit" portal: Electronic submission system for DoD Phase I and Phase II proposals.

TPOC contacts: Every topic has a TPOC — use this before submitting.

SBIR Assistance (SBA): The SBA maintains SBIR-specific resources and an SBIR advisor network.

PTAC (Procurement Technical Assistance Centers): Many PTACs provide SBIR proposal review assistance.

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Timing and Solicitation Windows

DoD SBIR solicitation windows are typically open for 45–60 days. During this window:

1. Download and read the solicitation BAA (Broad Agency Announcement)
2. Identify your target topics
3. Contact TPOCs for your target topics
4. Prepare and submit proposals before the solicitation close date

Missing the close date means waiting for the next solicitation cycle (3–4 months). Prepare well in advance.

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Key Takeaways

• DoD awards $3–4B annually in SBIR/STTR — the largest SBIR program in the federal government, covering Army, Navy, Air Force, DARPA, MDA, and other components.
• Three solicitations per year (approximately January, April, September) — each with component-specific topics.
• Phase I ($250K, 6–12 months) → Phase II ($1.75M, 24 months) → Phase III (sole-source production contracts).
• Topic selection is critical — apply only to topics where your specific technical capability directly addresses the stated problem.
• Contact the TPOC before submitting — understanding the specific technical need behind a topic is legitimate and improves proposal quality.
• Phase III sole-source contracts are the ultimate SBIR payoff — DoD can award non-competitive production contracts to SBIR Phase II awardees.

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