GSA Schedule and OASIS+ are two of the most important federal contract vehicles for IT and professional services companies. They are not interchangeable, and choosing the wrong one to pursue first can cost you a year or more of wasted effort.
This article compares the two vehicles across the dimensions that actually matter for your business, and gives you a framework for deciding which to pursue.
Quick Overview
GSA Schedule (GSA MAS) is a long-term government-wide contract that lets agencies buy your products and services using pre-negotiated pricing. It covers nearly every category the government purchases, from IT services to consulting to office supplies. Applications are accepted on a rolling basis.
OASIS+ is a government-wide, multi-award indefinite-delivery/indefinite-quantity (IDIQ) contract for complex professional services. It is managed by GSA and organized into domain-specific pools. OASIS+ only opens for new applications during periodic on-ramp windows.
Both give you access to federal buyers. The similarities end there.
Head-to-Head Comparison
| Factor | GSA MAS | OASIS+ |
|---|---|---|
| Products | Yes | No |
| Services | Yes | Yes |
| Entry barrier | Lower | Higher |
| Past performance | References requested | Relevant contract history required |
| Best for new contractors | Often a starting point | Better suited to established firms |
Qualification and Eligibility
GSA Schedule: The barrier to entry is relatively low. You need two years of financial statements, evidence of commercial sales, past performance references, and a compliant proposal. There is no minimum revenue threshold and no competitive scoring. If your proposal meets the requirements, you get awarded.
OASIS+: Significantly more competitive. You must demonstrate relevant past performance on contracts of similar scope and complexity. Applications are scored and ranked against other applicants. OASIS+ evaluates your experience, certifications, and organizational capability. Small businesses compete within designated pools, but the bar is still high.
Bottom line: GSA Schedule is accessible to most established small businesses. OASIS+ requires a stronger federal track record and only accepts applications during limited windows.
Ramp Time
GSA Schedule: Application to award typically takes 6 to 12 months. Once awarded, you can start pursuing opportunities immediately. The ramp from award to first revenue depends on your business development effort, but active companies see their first task order within 3 to 6 months.
OASIS+: The timeline from application to award depends on the on-ramp cycle and can take 6 to 18 months. After award, you still need to compete for individual task orders, which adds another layer of timeline. The total ramp from deciding to pursue OASIS+ to first revenue can be 12 to 24 months or longer.
Bottom line: GSA Schedule gets you to market faster. OASIS+ is a longer play.
Opportunity Types
GSA Schedule: Best suited for defined products and services with established pricing. Typical task orders range from micro-purchases ($10,000) to mid-size engagements ($500,000 to $5 million). Agencies use GSA Schedule for IT professional services, software licensing, hardware, consulting, and training. Browse our federal contract opportunities page to see the types of work currently available.
OASIS+: Designed for large, complex professional services engagements. Task orders under OASIS+ tend to be bigger, often $5 million to $500 million or more. The work is typically multi-year, multi-disciplinary, and may span multiple domains. Think large agency transformation programs, enterprise IT modernization, and complex management consulting engagements.
Bottom line: GSA Schedule covers the broad middle of federal purchasing. OASIS+ targets the large, complex end.
Buyer Behavior
GSA Schedule: Contracting officers use GSA Advantage to search for vendors, issue RFQs through eBuy, and make awards quickly. For purchases under the simplified acquisition threshold ($250,000), they only need to compare three Schedule holders. The buying process is fast and transactional. Many purchases are repeat buys from known vendors.
OASIS+: Agencies issue formal task order solicitations to the OASIS+ pool. The evaluation process is more rigorous, often involving detailed technical proposals, oral presentations, and competitive pricing. Awards take longer and require more investment per bid. The relationship is more strategic than transactional.
Bottom line: GSA Schedule buying is fast and high-volume. OASIS+ buying is slower, larger, and more competitive per opportunity.
Sustainment and Compliance
GSA Schedule: Ongoing obligations include quarterly sales reporting (72A), IFF payments (0.75%), GSA Advantage catalog maintenance, Price Reductions Clause monitoring, SAM.gov renewal, and mass modification acceptance. The compliance burden is administrative but manageable. The contract lasts up to 20 years.
OASIS+: Compliance includes task order reporting through the OASIS+ portal, contract access fee payments, maintaining your pool qualifications, and SAM.gov registration. Task order-level compliance adds performance reporting and CPARS (Contractor Performance Assessment Reporting System) obligations. The compliance is more performance-focused.
Bottom line: Both require ongoing compliance investment. GSA Schedule is more catalog-and-pricing focused. OASIS+ is more performance-and-reporting focused.
Competition Level
GSA Schedule: There are thousands of Schedule holders in most SIN categories. However, for any given RFQ, you are typically competing against 3 to 20 companies, depending on how the agency structures the solicitation. Smaller task orders have less competition. Relationships and incumbency matter.
OASIS+: The pool of competitors is smaller because fewer companies qualify for OASIS+. However, the companies in the pool are generally more capable and experienced. Competition for large task orders is intense, with well-resourced firms investing heavily in each proposal. Win rates are lower but contract values are higher.
Bottom line: GSA Schedule has more competitors but also more opportunities. OASIS+ has fewer competitors but more intense competition per opportunity.
Decision Checklist
Use this checklist to determine which vehicle makes sense for your company right now.
Pursue GSA Schedule First If:
- You have fewer than 5 years of federal contracting experience
- Your annual revenue is under $10 million
- You want to start generating federal revenue within 12 months
- Your services are well-defined with standard labor categories and pricing
- You want access to a high volume of small to mid-size opportunities
- You need to build federal past performance for future vehicle applications
- You do not have a team dedicated to writing large, complex proposals
Pursue OASIS+ First If:
- You have significant federal past performance on contracts over $5 million
- Your company specializes in complex, multi-disciplinary professional services
- You have a dedicated proposal team capable of investing in competitive task order bids
- Your target opportunities are large agency programs and enterprise engagements
- You already have other contract vehicles generating steady federal revenue
Pursue Both If:
- You have strong federal past performance and a growing commercial base
- Your services span both transactional IT work and complex professional services
- You have the organizational capacity to manage compliance for multiple vehicles
- Your business development strategy targets both mid-size task orders and large programs
The Strategic Sequence
For most small to mid-size IT and professional services companies, the smartest approach is sequential:
Step 1: Get your GSA Schedule. It is faster to obtain, starts generating revenue sooner, and builds the federal past performance you need.
Step 2: Use your GSA Schedule revenue and past performance to strengthen your OASIS+ application when the next on-ramp opens.
Step 3: Hold both vehicles and pursue opportunities through whichever vehicle best fits each requirement.
This is not the only path, but it is the one that works best for companies without an extensive federal track record.
Frequently Asked Questions
Can I have both a GSA Schedule and an OASIS+ contract?
Yes. Many contractors hold both. They serve different purposes and complement each other. A GSA Schedule gives broad access. OASIS+ positions you for large, complex work.
Which vehicle is easier to get for a small business?
GSA Schedule, by a wide margin. No minimum revenue, no competitive scoring, and rolling applications. OASIS+ requires demonstrated past performance, competitive evaluation, and only opens during on-ramp windows.
Do agencies prefer buying through GSA Schedule or OASIS+?
It depends on the purchase. Standard IT services and straightforward work often go through GSA Schedule. Large, complex, multi-disciplinary engagements often go through OASIS+. Many contracting officers use both.
What are the compliance differences between GSA Schedule and OASIS+?
GSA Schedule compliance is more administrative: quarterly reporting, IFF payments, catalog maintenance. OASIS+ compliance is more performance-focused: task order reporting, CPARS, and pool qualification maintenance. Both require active SAM.gov registration.
Should I get a GSA Schedule before applying to OASIS+?
It is not required, but it is smart. GSA Schedule builds federal revenue and past performance that strengthen your OASIS+ application. It also gives you experience with federal compliance before taking on OASIS+.
Next Steps
If you are evaluating which contract vehicle to pursue, start by assessing your readiness. Take our free GSA Readiness Assessment to see where your company stands on the key criteria.
Ready to move forward with a GSA Schedule? Visit our GSA Schedule consulting services page to learn about our fixed-fee approach to getting you on contract.
Want to see what agencies are buying right now? Browse our federal contract opportunities page for live solicitations across IT and professional services.