What GSA OASIS+ Phase II Actually Changed
Business Administration, Financial Services, Human Capital, Marketing & Public Relations, and Social Services added to existing eight domains. [Source: GSA Press Release, December 4, 2025]
GSA OASIS+ Phase II expanded to 13 service domains - a deliberate move to consolidate professional services spending under a single vehicle across the federal government. The five new domains were selected after extensive market research, customer engagement sessions, and in-depth spend analysis of where agencies were buying outside existing contract vehicles.
This matters for U.S. domestic contractors because OASIS+ now covers nearly the full spectrum of professional services that civilian and defense agencies in the National Capital Region and across the Continental United States (CONUS) procure routinely. Agencies from the Pentagon corridor in Arlington, Virginia to the HHS campus in Rockville, Maryland can route requirements through a single vehicle.
Phase II also introduced a continuously open solicitation - a structural change that eliminates the high-stakes, one-time proposal window that characterized Phase I. GSA will evaluate proposals in the order received, subject to resource availability. This is not an invitation to delay. The firms that submit early establish precedent in the scoring queue before the evaluation backlog builds.
The Small Business Opportunity Window
Set-asides for Total Small Business, 8(a), HUBZone, Women-Owned Small Business (WOSB), and Service-Disabled Veteran-Owned Small Business (SDVOSB) - all continuously open for Phase II. [Source: GSA.gov, 2026]
Of the roughly 4,100 awards issued under Phase I, approximately 3,400 went to small business pool awardees across five set-aside tracks. That distribution reflects GSA’s intent: OASIS+ is designed to provide small businesses with a pathway into high-value professional services task orders.
For Phase II, all five small business pools remain open simultaneously. Firms with multiple active certifications can pursue multiple tracks, potentially building positions across pools and increasing task order eligibility. A Virginia-based 8(a) SDVOSB, for example, could hold positions in two separate pools - a significant competitive advantage.
Firms that held positions in the legacy OASIS or OASIS Small Business contracts have no automatic transition. GSA has been explicit: previous awardees must requalify under Phase II standards through the new submission process via the OASIS+ Symphony Portal.
How Phase II Scoring Works
OASIS+ uses self-scoring rather than traditional narrative proposals. Every point claimed requires supporting documentation. [Source: GSA OASIS+ Solicitation, January 2026]
OASIS+ does not use a traditional narrative proposal. Instead, it uses a self-scoring methodology: offerors assign themselves points based on qualifying criteria - past performance volume and complexity, relevant experience, socioeconomic certifications, and domain-specific qualifications - then submit documentation to prove every claimed point.
This approach advantages firms that have maintained rigorous records of past performance dollar values, contract types, and complexity ratings. Firms entering the OASIS+ competition without those records organized will struggle to maximize their score. GSA released draft scorecards in advance on the OASIS+ Interact Community forum - those should be the starting point for any firm assessing its competitive position.
What Existing OASIS+ Awardees Must Do Right Now
GSA issued bilateral contract modifications in December 2025 that existing Phase I awardees must sign before pursuing new Phase II domains. [Source: Washington Technology, January 2026]
If your firm holds a Phase I OASIS+ award and wants to compete for task orders in the five new Phase II domains, you must first sign the bilateral modification GSA issued in December 2025. Existing awardees cannot simply submit new task order proposals in expanded domains; the contract modification is a prerequisite.
Beyond the modification, Phase II opens active competition in domains where your firm already has an award. The continuously open on-ramp means new competitors can enter your domain at any time, incrementally increasing the pool of awardees competing for the same task orders. Volume and relationship strategies that worked in Phase I will not maintain performance through Phase II without adjustment.
Firms should also review their positions against current agency task order forecasts on SAM.gov. With OASIS+ now spanning 13 domains, agencies that previously used separate vehicles for management consulting, financial services, and HR solutions will increasingly route requirements through OASIS+.
Phase II introduced five new service domains covering Business Administration, Financial Services, Human Capital, Marketing and Public Relations, and Social Services. As agency-specific Indefinite Delivery, Indefinite Quantity (IDIQ) vehicles expire, requirements will consolidate onto OASIS+. Firms not on the vehicle by the time those requirements move will be excluded from competition entirely. GSA has indicated no intent to set cutoff dates for the continuous on-ramp - but “always open” does not mean “no urgency.”
Three Decisions Every Professional Services Firm Must Make This Quarter
Firms that delay OASIS+ Phase II submissions through Q2 2026 risk falling behind the evaluation queue. [Source: GSA OASIS+ Solicitation, January 2026]
First, determine which domains your firm can credibly qualify for. Run the scoring calculation against your actual past performance before committing to a domain strategy.
Second, decide whether your firm’s socioeconomic certifications are current and properly documented in SAM.gov. A certification discrepancy at the time of evaluation results in disqualification from the relevant pool - there is no cure period.
Third, assign a dedicated pursuit lead who owns the OASIS+ Phase II submission. The documentation collection, scoring calculation, and Symphony Portal submission process requires focused effort over a six-to-eight-week preparation period for most firms.
Position Your Firm for OASIS+ Phase II Now
GCA works with U.S. federal contractors to assess OASIS+ eligibility, build scoring packages, and identify the right domain strategy before the evaluation backlog builds.
