SBIR/STTR Phase II
Phase II is focused on the development, demonstration, and delivery of a technology innovation. These awards are made to small businesses (and their research institution partners in STTR) who successfully demonstrated the feasibility of their technology idea during Phase I. Only small businesses that were awarded a Phase I are eligible to apply for Phase II.
The next STTR Phase II solicitation is open now for submissions!
NASA Investment
Up to $1,275,000
Available to
Small Businesses
SBIR Period of Performance
24 months
STTR Period of Performance
24 months
Program Year 2026 Information Hub
This year, the NASA SBIR/STTR program is undergoing a change from our traditional solicitation cycle to a Broad Agency Announcement, or BAA. Click the link below to learn more.
Learn MoreLatest SBIR/STTR Phase II Selections
July 10, 2025 | 2024 SBIR Phase II
NASA selected 11 additional proposals from U.S. small businesses to receive 2024 SBIR Phase II awards. After proving their concepts during Phase I, these small businesses will now get the chance to develop their technology prototypes for applications like a Mars communications relay network, AI processors for autonomous spaceflight and surface operations, and more. Read more about the awardees and their technology proposals in the 2024 NASA SBIR Phase II Awardees (Selected July 2025 and May 2025) attachment below.
May 14, 2025 | 2024 SBIR Phase II
NASA selected 108 proposals from U.S. small businesses in 24 states to receive 2024 SBIR Phase II awards, worth up to $850,000 each plus up to $50,000 in Technical and Business Assistance (TABA) funds. After proving their concepts during Phase I, these small businesses will now get the chance to develop their technology prototypes for applications like a Mars communications relay network, AI processors for autonomous spaceflight and surface operations, and more. Read more about the awardees and their technology proposals in the 2024 NASA SBIR Phase II Awardees (Selected May 2025) attachment below.
November 22, 2024 | 2023 STTR Phase II
NASA selected 21 small businesses and their research institution partners to receive 2023 STTR Phase II awards, worth up to $850,000 each plus up to $50,000 in Technical and Business Assistance (TABA) funds. All of the selected teams successfully completed their Phase I concept development periods, and will now move on to develop technology prototypes in a variety of areas to help our missions in space and here on Earth. Read more about the awardees and their technology proposals in the 2023 NASA STTR Phase II Awardees (Selected November 2024) attachment below.
Awardees & Past Solicitations
2024 NASA SBIR Phase II Selections (Selected July 2025 and May 2025)
Jul 16, 2025
PDF (795.05 KB)
2024 NASA STTR Phase II Solicitation
Jun 23, 2025
PDF (804.32 KB)
2024 NASA SBIR Phase II Selections (Selected May 2025)
May 14, 2025
PDF (445.01 KB)
2024 NASA SBIR Phase II Solicitation
Mar 24, 2025
PDF (797.94 KB)
2023 NASA STTR Phase II Selections (Selected November 2024)
Nov 22, 2024
PDF (148.35 KB)
2023 NASA STTR Phase II Solicitation
Jun 12, 2024
PDF (818.63 KB)
2023 NASA SBIR Phase II Selections (Selected April 2024)
Apr 30, 2024
PDF (40.84 MB)
2023 NASA SBIR Phase II Solicitation
Jan 9, 2024
PDF (781.25 KB)
2022 NASA STTR Phase II Selections (Selected November 2023)
Jan 17, 2024
PDF (8.11 MB)
2022 NASA STTR Phase II Solicitation
Jan 9, 2024
PDF (825.43 KB)
2022 NASA SBIR Phase II Selections (Selected April 2023)
Jan 17, 2024
PDF (42.29 MB)
2022 NASA SBIR Phase II Solicitation
Jan 9, 2024
PDF (873.86 KB)
2021 NASA SBIR Phase II Selections
Feb 2, 2024
PDF (4.41 MB)
2021 NASA STTR Phase II Selections
Feb 2, 2024
PDF (8.23 MB)
Older SBIR/STTR Phase II Press Releases
2023 SBIR Phase II
On April 22, 2024, NASA selected 107 technology ideas from 95 small businesses to receive Phase II awards totaling $93.5 million.
2022 STTR Phase II
In November 2023, NASA selected 21 small businesses and their research institution partners to receive Phase II awards totaling nearly $18 million.
2022 SBIR Phase II
In April 2023, NASA selected 92 small businesses to receive Phase II awards totaling $98 million.
Note: Phase II solicitations prior to 2022 were included in the Phase I solicitations
Looking for awardees prior to 2021? Search for them on SBIR.gov
Resources for Phase II Proposers
TABA
As part of your Phase II submission, you can apply for up to $50,000 in additional funding to support your commercialization strategy through the Technical and Business Assistance (TABA) program.
Phase II Prep Webinar
The program hosted a webinar full of tips and helpful reminders for potential Phase II proposers that is available on YouTube. While the webinar took place in November 2022, the information is still current.
