How to bid on OASIS+ Total Small Business Set-Aside with Federal Acquisition Service

What the agency is buying and why it matters

The General Services Administration (GSA), Federal Acquisition Service (FAS), is seeking professional, scientific, and technical services through the One Acquisition Solution for Integrated Services Plus (OASIS+) program. This is an Indefinite-Delivery, Indefinite-Quantity (IDIQ), Multi-Agency Contract (MAC).

This opportunity is significant for small businesses because it is a continuously open solicitation, allowing for rolling admissions and on-ramping. This means new vendors can join the program over time, and existing awardees can compete for additional domains as government needs evolve. Being part of OASIS+ can open doors to a wide range of government contracts.

Key dates and deadlines

This solicitation was published on July 07, 2026. The deadline for submitting new proposals is January 11, 2027, at 4:00 PM ET. There is no fixed timeline for award; timelines will vary based on the volume of proposals received and resource availability.

Offerors who submitted a proposal prior to Amendment 0009 and have not yet received an award or unsuccessful notice must acknowledge Amendment 0009 by signing and uploading the SF 30 document in Symphony by July 15, 2026. Failure to do so may result in the offer being ineligible for further consideration.

Who this opportunity suits

This opportunity is specifically set aside for small businesses that can provide professional, scientific, and technical services. Firms with expertise in various domains under these service categories are encouraged to respond. This is suitable for companies looking for long-term government contracting vehicles.

How to respond

All proposals must be submitted through the OASIS+ Submission Portal (OSP). The OSP is open for registration and submission of offers. You must be registered and active in SAM.gov to submit a proposal.

To access the opportunity, click the "View original source" link. If you land on the portal's homepage, click the link again to go directly to the bid. You may need a free account to view documents, though for some bids this is not required. Review the solicitation requirements and all amendments before submitting your offer. New offers submitted after Amendment 0009 must acknowledge all current amendments in the OSP during submission. A signed SF 33 is required for all offer submissions.

Practical tips for a competitive response

Thoroughly review all solicitation documents and amendments. Pay close attention to the OASIS+ Small Business RFP and the Provisional Attachments, especially the Domain Qualifications Matrix and Scorecards (J.P-1) and the Project Verification Form (J.P-3). These documents will guide you on specific requirements for each domain you wish to bid on.

Ensure your SAM.gov registration is active, accurate, and complete. Since this is a continuously open solicitation, maintaining up-to-date company information is crucial. Prepare your proposal well in advance of the deadline, as technical issues or questions may arise. If you have questions related to registration or technical issues with the portal, contact the provided support email.