SBIR Phase III: The Transition From Award to Revenue

Phase III is the part of the SBIR program most firms know least about — because most firms never get there. The Phase II award is the technical milestone that makes Phase III possible. The Phase II award is also where the federal funding stops, the program office disengages, and the small business is left to translate a working prototype into a sustained revenue stream on its own. Many do not.

This guide is about what Phase III actually is, what mechanisms exist to fund it, and the work that begins in Phase II to make a successful transition possible. Skip the work, and Phase III is mythology. Do the work, and it is the most important contracting authority in the federal small-business toolkit.

What SBIR Phase III Actually Is

Phase III is any work that derives from, extends, or completes effort performed under a prior SBIR Phase I or Phase II award. It is not funded by the SBIR/STTR set-aside. It is funded by ordinary federal procurement dollars — program-of-record funding, operations and maintenance budgets, or commercial sales — but it carries a special legal authority: an agency may award a Phase III contract to the SBIR awardee on a sole-source basis, without a competitive solicitation.

That sole-source authority is the engine of the entire SBIR program’s commercialization promise. It exists in 15 U.S.C. § 638(r) and is reinforced in agency-level acquisition guidance across DoD, NASA, and others. Used well, it lets a federal customer that already understands and trusts your technology continue to buy it without recompeting the work — a structural advantage no other small business mechanism provides.

What Phase III Is Not

Two persistent misconceptions worth correcting up front:

• Phase III is not a funding tier. There is no ‘Phase III award amount.’ The dollar value is whatever the customer’s ordinary procurement budget can support — and the customer is no longer a small-business program office, but a program of record, an operational unit, or a commercial buyer.

• Phase III is not automatic. The sole-source authority exists. The customer’s willingness to use it does not. A contracting officer who has never written a Phase III award will hesitate; a program manager whose budget is committed elsewhere will not pivot. Phase III happens because the awardee made it happen — not because the program structure pulled it through.

The Three Pathways to Phase III

1. Program of Record Insertion

Your technology becomes a component, subsystem, or capability inside an existing major program of record — a missile, a satellite, an aircraft variant, a clinical decision support platform. The transition partner is typically a prime contractor or a program executive office. The contract vehicle is whatever instrument the program uses for its other procurements.

This is the highest-value Phase III pathway and the slowest. Insertion timelines run two to five years. The work in Phase II that makes it possible: identifying the program of record by name, engaging the program manager early, and structuring your Phase II demonstration to retire a specific TRL risk the program already knows about.

2. Direct Phase III Procurement

An operational unit or end user buys your product or service directly using ordinary procurement funds, sole-sourced under SBIR Phase III authority. Common in commands like AFWERX-funded squadrons, fleet operational units, or specific clinical sites that participated in a Phase II demonstration. Smaller in dollars than program-of-record insertion, faster in cycle time, and the easier first proof point for the broader transition story.

3. Commercial Phase III

Phase III also includes non-federal commercial revenue derived from SBIR-funded work. The federal sole-source authority does not apply here — you are selling to private buyers under ordinary commercial terms — but the SBIR data rights you preserved during Phase II are typically what makes the commercial sale possible. Many of the most successful SBIR firms generate the bulk of their post-award revenue this way, even when their initial customer was federal.

What to Do During Phase II to Make Phase III Possible

Five disciplines, all of which begin at Phase II kickoff and not Phase II close-out:

1. Identify the transition partner by name. Not the agency. The named program office, prime contractor, or operational unit that will commit dollars to follow-on work. If you cannot name them in the first quarter of Phase II, you do not have a transition plan; you have a hope. This is capture work, not technical work.

2. Build the transition partner into the Phase II workplan. User testing, milestone reviews, and demonstration events should include the eventual buyer, not just the SBIR program office. The Phase II program manager almost always supports this; it makes their portfolio look strong.

3. Protect your data rights. SBIR data rights protect the technology you developed under the award against government redistribution to your competitors. They are also fragile if you fail to mark deliverables correctly. Get this right at Phase II contract execution; correcting it later is expensive.

4. Develop the contracting officer relationship early. Phase III contracts are written by contracting officers, not by program managers. A contracting officer who has never executed a Phase III sole-source will need procedural support, citations to the authority, and patience. Identify the contracting officer who will eventually write the Phase III award and engage them during Phase II, not after.

5. Document the commercialization pathway in writing. The Phase II commercialization plan is often treated as a compliance artifact. Treat it instead as the business plan for the transition. The named transition partner, the dollar value of the projected follow-on work, the schedule, and the risks belong in this document, not in your head.

Why Most Firms Stall at Phase III

The pattern is consistent. The Phase II award lands. The team builds a working prototype. The technical milestones close out. The final report is filed. And then the firm discovers that the program manager who funded the SBIR has no procurement budget to continue, the program of record they hoped to insert into never knew about them, and the contracting officer who could write a Phase III award has never seen one before.

All four of those failures trace back to work that was not done in Phase II. Phase III is not a separate program you apply to. It is the harvest of capture work that began at Phase II kickoff.

How CovertEntity Approaches Phase III

We treat Phase III planning as a Phase II discipline, not a Phase II close-out task. The transition partner is identified before the Phase II workplan is finalized. The contracting officer is engaged before the demonstration. The commercialization plan names dollars, dates, and decision-makers — not aspirations. This is the work that separates an SBIR firm with one good prototype from an SBIR firm with a federal practice.

If you are mid-Phase II right now and the answer to ‘who is your transition partner’ is not a named individual at a named office with a named budget cycle, the time to fix that is not at Phase II close-out. It is now.