PrimeRFP SCOUT · Contract Vehicle · GSA
OASIS+
GSA · Professional Services contract vehicle
OASIS+ is a GSA professional services with a $50B per pool ceiling and 2,339 prime awardees. SCOUT tracks 741 task orders totaling $1.6B — work ordered under the vehicle, not the prime awards. Prime on your pool before task-order season; align NAICS and pool selection early.
GSA's One Acquisition Solution for Integrated Services Plus — the primary government-wide vehicle for professional services, IT consulting, and systems integration.
$50B per pool
Ceiling
2,339
Prime Awardees
741
Task orders
$1.6B
Task-order obligated
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Vehicle Overview
Category
Professional Services
Ownership & Management
GSA
Business Development Positioning
Prime on your pool before task-order season; align NAICS and pool selection early.
Top Agencies Using OASIS+
| Rank | Agency | Spend |
|---|---|---|
| #1 | Department of Defense (DOD) | $665.5M |
| #2 | Department of Homeland Security (DHS) | $339.7M |
| #3 | Department of Health and Human Services (HHS) | $191.1M |
| #4 | General Services Administration (GSA) | $190.0M |
| #5 | Department of State (DOS) | $53.2M |
| #6 | Department of Justice (DOJ) | $32.9M |
| #7 | Department of Commerce (DOC) | $24.9M |
| #8 | Department of Labor (DOL) | $18.9M |
| #9 | Department of the Interior (DOI) | $18.6M |
| #10 | Department of Veterans Affairs (VA) | $9.5M |
Top Task Order Winners
| Rank | Contractor | Orders | Total |
|---|---|---|---|
| #1 | Odyssey Systems Consulting Group Ltd. | 20 | $96.0M |
| #2 | General Dynamics Corporationfamily | 5 | $59.4M |
| #3 | Booz Allen Hamilton | 19 | $59.2M |
| #4 | CACI | 7 | $57.6M |
| #5 | Saic, INC.family | 11 | $49.2M |
| #6 | Credence Management Solutions Limited Liability Company | 15 | $42.2M |
| #7 | NATIONAL OPINION RESEARCH CENTER | 5 | $36.7M |
| #8 | Decisionpoint | 2 | $34.3M |
| #9 | Deloitte Consulting LLPfamily | 20 | $33.2M |
| #10 | Science Applications International | 17 | $32.6M |
Task Order Trends by Year
| Year | Orders | Obligated |
|---|---|---|
| 2024 | 2 | $1.3M |
| 2025 | 287 | $485.1M |
Frequently Asked Questions — OASIS+
How do I get on OASIS+?
GSA regularly issues solicitations for new awardees. Register for SCOUT alerts to track OASIS+ solicitations and RFP releases. Once awarded, you can pursue task order competitions against other prime awardees.
Who are the dominant winners on OASIS+?
Top task order winners are listed above. Patterns show which contractor capabilities and solutions are most in demand across agencies using this vehicle. Study their win strategies and proposal themes.
What is the market size for OASIS+?
SCOUT has tracked $1.6B in task-order obligations across 741 task orders on OASIS+. That is work ordered under the vehicle — not the 2,339 prime awards that put firms on OASIS+. The official ceiling is $50B per pool. Use these benchmarks for capture planning.
SCOUT Signal
September 2026
Service-disabled veteran-owned contract actions fell 15% at the VA in a single month.
Meanwhile VA's service-disabled veteran-owned contract actions fell 15.3%. The same agency, the same month, the large-vendor lane expanding while the small-business lane contracted. Figures are civilian-agency obligations through 2026-08-31; DoD FPDS for this window is labeled incomplete.
This issue is the whole civilian market. Your capture plan isn't.
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