SBIR Phase III Contracts: How to Get Follow-On Government Work

The contract that changes an SBIR company from a research shop into a government supplier is not Phase I or Phase II. It is Phase III — and most founders have never heard of it until they are already too late to position for it.

Phase III is the least understood and most financially significant stage of the SBIR program. Unlike Phase I and Phase II, which are competitive grant awards with fixed dollar amounts, Phase III is a contracting mechanism with no funding ceiling, no separate competition, and no requirement that the awarding agency be the one that funded your original SBIR work. Any federal agency can issue a Phase III contract to any SBIR awardee for work that derives from, extends, or completes the effort initiated under a prior SBIR award. The implications of that single rule are enormous.

Phase III Is Not a Grant — It Is a Sole-Source Contract

The most common misconception about Phase III is that it works like Phase I and Phase II: you write a proposal, compete against other applicants, and hope for an award. That is wrong. Phase III is a sole-source acquisition authority built into the SBIR statute. It allows contracting officers to award contracts directly to SBIR companies without full and open competition, provided the work relates to technology developed under a prior SBIR or STTR award.

This means there is no Phase III application form, no review panel, and no proposal submission portal. Instead, Phase III contracts are negotiated directly between the SBIR company and the government contracting officer, often through a justification and approval (J&A) process that documents why sole-source award is appropriate.

The practical result is that Phase III success depends far more on relationships and market positioning than on proposal writing skill. The company that wins Phase III work is the one whose technology solves a problem that a government program manager needs solved, and whose team has been visible enough to that program manager for long enough that when procurement authority becomes available, the conversation is already underway.

The DOD SBIR guide covers how defense agencies manage the Phase I-to-III pipeline and what program managers look for at each transition point.

How Phase III Data Rights Protect Your Technology

One of the most valuable and least appreciated features of Phase III is the data rights protection it provides. Under the SBIR statute, data developed exclusively with SBIR funding receives a minimum five-year protection period during which the government cannot release that data to competitors or require the company to deliver unlimited rights.

This protection carries forward into Phase III contracts. When a contracting officer issues a Phase III award, the data rights protections from the underlying SBIR work apply — even if the Phase III contract is funded with non-SBIR dollars. This is a significant competitive advantage over companies that developed similar technology under traditional government contracts, where the government typically receives broader data rights.

The catch is that you must assert your data rights correctly during Phase III negotiation. Contracting officers who are unfamiliar with SBIR-specific provisions may default to standard data rights clauses that override SBIR protections. Reviewing the data rights clauses in any Phase III contract before signing — and pushing back when they conflict with SBIR statute — is essential. The SBIR Policy Directive (Section 8) spells out the specific DFARS and FAR clauses that should apply.

Starting the Phase III Conversation During Phase I

The companies that consistently land Phase III contracts share one trait: they begin building the transition relationship during Phase I, not after Phase II ends.

Identify the acquisition program. Every government agency buys things through programs of record — established budget lines with designated program managers and contracting authority. Your SBIR technology must connect to one of these programs to transition beyond R&D. During Phase I, research which acquisition programs align with your technology area and start learning their timelines, requirements, and decision-makers.

Engage the program manager directly. The SBIR program manager who oversees your Phase I award is not the same person who manages the acquisition program your technology would enter. You need both relationships. Ask your SBIR program manager for introductions to the relevant acquisition community. Attend industry days and program-specific conferences where acquisition officials present their needs.

Demonstrate operational relevance, not just technical merit. Phase I and Phase II proposals are evaluated primarily on technical innovation. Phase III decisions are driven by operational need. Frame your technology demonstrations and progress reports around the mission problems your technology solves, not just the technical benchmarks it achieves. A contracting officer authorizing a sole-source award needs to justify that your technology fills a documented capability gap.

Build your manufacturing readiness. Government acquisition officials are wary of SBIR companies that can build one prototype in a lab but cannot produce fifty units on a production line. Addressing manufacturing readiness — even at a conceptual level — during Phase I and Phase II demonstrates that you are thinking past the research phase. Include manufacturing readiness level (MRL) targets in your Phase II proposal.

Companies exploring SBIR opportunities across multiple agencies should map every target topic to its parent acquisition program before applying — this Phase III thinking should start before Phase I even begins.

What the Reauthorization Changes Mean for Phase III

The 2026 SBIR reauthorization introduced several provisions specifically aimed at improving Phase III transition rates, which have historically been a weak point of the program.

Acquisition workforce training is now mandated. The legislation requires the SBA to develop training materials for contracting officers on SBIR Phase III authority, including data rights provisions. This addresses the single largest barrier to Phase III awards: contracting officers who either do not know they can issue sole-source SBIR Phase III contracts or are uncomfortable doing so because they have never done it before.

Standardized Phase III contracting tools are in development. The SBA, in coordination with DOD and civilian agencies, is developing model contract language and justification templates for Phase III awards. These tools will reduce the administrative burden on contracting officers and make it easier for program managers to advocate for SBIR companies within their acquisition chains.

Strategic Breakthrough Awards bridge the gap. The new Strategic Breakthrough Awards category — awards up to $10 million requiring matching funds — is designed explicitly to accelerate the transition from Phase II completion to Phase III production. Companies that secure matching investment demonstrate the market validation that acquisition officials need to justify sole-source awards.

Common Barriers and How to Overcome Them

Even with statutory sole-source authority, Phase III contracts face real obstacles.

Contracting officer resistance. Many contracting officers have never processed a Phase III sole-source justification and default to requiring full and open competition. Counter this by providing them with the specific statutory and regulatory citations (15 U.S.C. 638(r)(1) and FAR 6.302-5(b)(4)) and, if possible, examples of Phase III awards from their own agency.

Timeline mismatch. SBIR R&D timelines and acquisition program timelines rarely align. Your Phase II may end eighteen months before the acquisition program is ready to buy. Maintaining visibility and technology readiness during this gap — through bridge funding, irad investment, or unfunded cooperative research — is critical.

Budget competition. Phase III contracts compete for the same agency funding as every other procurement priority. Even when a program manager champions your technology, budget constraints can delay or cancel planned Phase III awards. Diversifying across multiple potential government customers reduces this risk.

Related SBIR reading:

• SBIR Grant Guide 2026
• SBIR Phase I vs Phase II: Requirements and Strategy
• SBIR Commercialization Plan Examples

The gap between completing Phase II research and landing your first production contract is where many SBIR companies stall out — Granted helps you build the proposal and transition strategy that keeps momentum through that critical window.