A division of Argentum Consulting Group

Strategy · September 28, 2026

GSA MAS vs. OASIS+: Which Contract Vehicle Fits Your Firm?

Two major GSA vehicles, two different jobs. How to decide, and why many firms hold both.

GSA runs several vehicles, and two come up constantly for professional-services firms: the Multiple Award Schedule and OASIS+. They are not competitors. They do different jobs.

Side by side

GSA MASOASIS+
Best forProducts and services of all kinds, from small orders to mid-sized projectsComplex, multi-disciplinary professional services, often larger task orders
How you qualifyFinancial, commercial, and pricing review of your offerA point-based evaluation of your qualifications and experience
How buyers orderAdvantage!, eLibrary, or eBuy RFQs among schedule holdersTask-order competitions among OASIS+ awardees
PricingCeiling rates negotiated in the contractRates proposed and competed at the task-order level
OpennessOpen to new offers continuouslyOpens to new entrants in periodic on-ramps

Which should you start with?

  • Start with the MAS if you sell products, if you want the broadest buyer visibility, or if you are newer to federal work.
  • Consider OASIS+ if your work is complex professional services with substantial federal experience that you can document, and if you want access to large task orders.
  • Hold both if you pursue a wide range of buyers. A MAS often serves as the everyday sales channel while OASIS+ captures bigger work.

Where to get help

We focus on the MAS. For OASIS+ eligibility, points, and submissions, see our sister division ezOasis+, part of the same Argentum Consulting Group family, which has filed more than a hundred OASIS+ proposals. We coordinate with them so one team knows your whole story.

Vehicle rules and on-ramp schedules change. Confirm current terms with GSA and your advisor.

Have a question about your situation?

Talk with an analyst for 15 minutes. It is free, and we will tell you honestly whether the MAS fits.

Book a Call 859-360-0909

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This article is general information, not legal or tax advice. Program rules change; confirm current requirements before acting.