Three major government contract vehicles dominate IT and professional services: GSA MAS, OASIS+, and NASA SEWP. Understanding the differences helps you choose the right path for your business.
Quick Comparison
| Feature | GSA MAS | OASIS+ | SEWP |
|---|---|---|---|
| Scope | Products + Services | Services Only | IT Products |
| Entry Barrier | Low-Medium | High | High |
| Contract Length | 20 years | 10 years | 10 years |
| Competition Type | Open | Limited | Limited |
GSA Multiple Award Schedule (MAS)
What It Is
The GSA MAS is the government's largest and most comprehensive contract vehicle. It covers virtually everything—products, services, and solutions across all industries.
Best For
- Companies new to government contracting
- Businesses with products AND services
- Organizations wanting broad market access
- Firms seeking the lowest barrier to entry
Pros
- Always open for applications
- Covers nearly all industries
- Direct access to all federal agencies
- 20-year contract term
Cons
- High competition for common services
- Lower ceiling for complex projects
- Requires more active marketing
OASIS+ (One Acquisition Solution for Integrated Services)
What It Is
OASIS+ is GSA's premier professional services contract vehicle, designed for complex, high-value requirements across 13 service domains.
Best For
- Established services companies
- Firms with significant federal past performance
- Organizations pursuing large, complex projects
- Companies with domain-specific expertise
Pros
- Less competition (qualified pool only)
- Higher-value task orders
- Preferred for complex requirements
- Covers all contract types (T&M, FFP, Cost-Plus)
Cons
- Strict qualification requirements
- Services only (no products)
- Limited on-ramp windows
NASA SEWP (Solutions for Enterprise-Wide Procurement)
What It Is
SEWP is NASA's government-wide IT product contract, focusing on hardware, software, and related services.
Best For
- IT product resellers and manufacturers
- Companies with established IT supply chains
- Hardware-focused businesses
Pros
- Streamlined ordering process
- Strong IT buyer community
- Faster order turnaround
Cons
- IT products focus only
- Competitive selection process
- Limited services scope
Which Should You Pursue?
Start with GSA MAS if:
- You're new to federal contracting
- You sell products AND services
- You want market access while building past performance
Add OASIS+ if:
- You have 5+ years of relevant federal experience
- You pursue complex services contracts over $1M
- You have domain expertise in OASIS+ categories
Consider SEWP if:
- You're primarily an IT product company
- You have existing relationships with IT manufacturers
- Hardware is your primary offering
The Multi-Contract Strategy
Many successful contractors hold multiple vehicles. A common approach:
- Start with GSA MAS to build past performance
- Add OASIS+ once you have qualifying experience
- Consider SEWP if you expand into IT products
Figure Out Which Contract Vehicle Is Right for You
Take our free GSA Readiness Assessment to evaluate your eligibility for GSA MAS. Interested in OASIS+? Try our OASIS+ Qualification Scorer. Contact us for a free consultation to discuss your strategy.