One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted Continuously Open Solicitation

The One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted Solicitation is a continuously open Indefinite‑Delivery, Indefinite‑Quantity (IDIQ) Multi‑Agency Contract that invites qualified contractors to provide a broad portfolio of professional services across thirteen management and technical domains—including Management & Advisory, Technical & Engineering, Research & Development, Intelligence Services, Enterprise Solutions, Environmental, Facilities, Logistics, Business Administration, Marketing and Public Relations, Human Capital, Financial Services, and Social Services. The solicitation, issued by the General Services Administration’s Federal Acquisition Service, requires that all offers be submitted through the OASIS+ Symphony Portal (OSP), with each offeror acknowledging Amendment 0008 and fully complying with the Revolutionary FAR Overhaul, updated NAICS and PSC codes, and the government’s cybersecurity and supply‑chain risk‑management (C‑SCRM) deliverables. Contractors must prepare detailed labor‑category time‑and‑material pricing, adhere to the specified minimum contract guarantee and maximum ceiling, and maintain robust reporting of task‑order transactional data, contract‑access‑fee payments, and subcontracting plans in accordance with FAR 52.219‑14, 52.240‑90, and the SSA‑approved reporting system.

The solicitation emphasizes a continuous‑open workflow that allows existing awardees to compete for additional domains as agency needs evolve, with no fixed award timetable; award decisions will depend on bid volume and resource availability. All respondents must be active in SAM.gov, sign up for the OSP, and submit proposals that meet the stipulated labor‑category, NAICS code, and PSC requirements, as well as the various compliance obligations listed in the attachments (including the lab‑category tables, C‑SCRM plan, and subcontractor‑letter‑of‑commitment template). The procurement ultimately seeks capable firms that can deliver integrated, multi‑agency professional services while fully meeting the latest FAR, DFARS, and security standards.

All offers are required to include a comprehensive cybersecurity & supply‑chain risk management plan in accordance with FAR 52.204‑90.

Contract Opportunity Type: Solicitation (o)

Product Service Code: R499-SUPPORT- PROFESSIONAL: OTHER
NAICS Code:
541990-All Other Professional, Scientific, and Technical Services

This is Amendment 0008 to solicitation 47QRCA23R0006.

The General Services Administration (GSA), Federal Acquisition Service (FAS), Office of Professional Services and Human Capital (PSHC) Categories, is pleased to issue an amendment in accordance with RFO-2025-05 FAR 5.101 for the reopening of the One Acquisition Solution for Integrated Services Plus (OASIS+), Indefinite-Delivery, Indefinite-Quantity (IDIQ), Multi-Agency Contracts (MAC). The System for Award Management (SAM.gov) is the official source for information about this procurement.

The OASIS+ Unrestricted RFP consists of the following:

• OASIS+ Unrestricted RFP
• SF30 (Amendment 0008) and Continuation Sheet

Provisional Attachments

• J.P-1 OASIS+ Domain Qualifications Matrix and Scorecards
• J.P-2 FPDS Sample
• J.P-3 Project Verification Form
• J.P-4 Domains Auto-Relevant NAICS Codes and PSCs
• J.P-5 Functional Areas and Sub-Areas
• J.P-6 Past Performance Rating Form
• J.P-7 CTA Qualifications & MRCL List Template
• J.P-8 Direct Labor Rate Ranges
• J.P-9 Cost/Price Template
• J.P-10 OASIS+ Individual Model Subcontracting Plan
• J.P-11 OASIS+ Commercial Model Subcontracting Plan
• J.P-12 Subcontractor Letter of Commitment Template
• J.P-13 Financial Data Input Template
• J.P-14 Reserved

Contract Attachments

• J-1 Labor Categories and Bureau of Labor Statistics Standard Occupational Classifications
• J-2 Task Order, Transactional Data, and Contract Access Fee Reporting
• J-3 Cybersecurity & Supply Chain Risk Management (C-SCRM) Deliverables
• J-4 Department of Defense Required Provisions and Clauses for Task Orders
• J-5 Task Order Clause and Provision Matrix

Consistent with Section H.11 of the OASIS+ RFP, GSA intends to maintain continuously open solicitations to support rolling admissions (on-ramping) and to allow existing awardees, when eligible, to compete for additional Domains as Government needs evolve. Should GSA determine a need to close any domain or solicitation vehicle, the agency will provide public notification. Offerors are permitted to submit a single proposal for multiple domains under a single solicitation. There is no fixed timeline for award; timelines will vary based on the volume of proposals received and are subject to resource availability.

Offerors must be registered and active in SAM.gov. All proposals must be submitted through the OASIS+ Symphony Portal (OSP). The OSP is open for registration and submission of offers as of January 12, 2026. Registration information and submission instructions are provided at https://oasis-plus-eval.app.cloud.gov/. For questions related to registration or technical issues, offerors can contact client.support@apexlogic.com.

Industry is instructed to review the solicitation requirements posted to SAM.gov before submitting an offer. Offerors will be required to acknowledge Amendment 0008 as part of their offer submission.

The OASIS+ CO is the sole point of contact for all questions under this solicitation. Industry is welcome to submit any questions after carefully reviewing the RFP and registering in the OSP. Offerors must submit all questions regarding the solicitation via the OSP. GSA reserves the right to publicly discuss and publish, or simply consider, questions and comments regarding the RFP.

Offerors are solely responsible for reviewing and staying current with the solicitation and all amendments posted on SAM.gov. In the event of a conflict, the solicitation and amendments posted to this notice on SAM.gov take precedence over any information contained on other websites or prior communications. Any clarification that changes solicitation requirements will be issued, as appropriate, through a solicitation amendment.

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Notice ID: 47QRCA23R0006-P2

Additional buyer information

Department/Ind. Agency: GENERAL SERVICES ADMINISTRATION
Sub-tier: FEDERAL ACQUISITION SERVICE
Major Command: GSA/FAS/PSHC/OASIS PLUS

Original Set Aside: NONE-No Set aside used