OASIS+ Contract Vehicle: How to Get On and Win Task Orders

OASIS+ (One Acquisition Solution for Integrated Services Plus) is a suite of governmentwide, multiple-award indefinite delivery/indefinite quantity (IDIQ) contracts administered by GSA. It is the successor to the original OASIS contract vehicle and is now the primary vehicle for federal agencies purchasing professional services.

Think of OASIS+ as a pre-competed contract vehicle — once you're on it, agencies can issue task orders directly to OASIS+ holders without running a full competition. This dramatically shortens procurement timelines and gives you access to billions in annual task order volume.

Key OASIS+ Facts:

• Contract ceiling: No maximum — unlimited potential value
• Ordering period: 5-year base + 5-year option = 10 years total
• Task order ceiling: No maximum per order
• Geographic scope: Worldwide (CONUS and OCONUS)
• Eligible buyers: All federal agencies, DoD, and FFRDCs
• On-ramping: Continuous — submit proposals anytime

OASIS+ replaced and consolidated multiple legacy vehicles including the original OASIS, OASIS Small Business, HCaTS (Human Capital and Training Solutions), and BMOPS (Building Maintenance and Operations). If you held contracts on any of these, you must requalify under OASIS+ — there is no automatic transition.

OASIS+ is structured as six separate contract pools, each with its own solicitation and awards. Five of the six are reserved for small businesses:

1. OASIS+ Unrestricted (UR)

Open to businesses of any size. Large contractors compete here. Higher qualification thresholds (42 credits minimum). No small business set-asides can be issued under this pool — if an agency wants a small business, they must use one of the SB pools.

2. OASIS+ Small Business (SB)

For any business that qualifies as "small" under the relevant NAICS code. 36-credit minimum threshold. The broadest small business pool with the most contract holders.

3. OASIS+ 8(a)

Exclusively for businesses certified in the SBA 8(a) Business Development Program. Agencies can issue sole-source task orders up to $4.5M for services. Powerful for certified firms.

4. OASIS+ SDVOSB

For Service-Disabled Veteran-Owned Small Businesses certified through VetCert. Dedicated pool for veteran entrepreneurs.

5. OASIS+ HUBZone

For businesses certified under the HUBZone program with principal offices in designated areas. Includes the 10% price evaluation preference.

6. OASIS+ WOSB

For Women-Owned Small Businesses certified through SBA. Note: EDWOSB set-asides cannot be further restricted under this pool.

Important: You can hold contracts in multiple pools simultaneously. A woman veteran with 8(a) certification could potentially qualify for OASIS+ SB, OASIS+ 8(a), OASIS+ SDVOSB, and OASIS+ WOSB — maximizing task order visibility.

OASIS+ organizes all services into 13 domains. When you apply, you select which domains match your capabilities and submit qualifying projects for each. You only compete for task orders in domains where you hold a contract.

Original 8 Domains (Phase I):

• Management & Advisory — Strategic planning, program management, organizational development, acquisition support
• Technical & Engineering — Systems engineering, software development, cybersecurity, IT modernization
• Scientific — Research, laboratory services, data science, analytics
• Logistics — Supply chain, warehousing, distribution, inventory management
• Engineering — Civil, mechanical, electrical, environmental engineering services
• Environmental — Remediation, compliance, sustainability, NEPA services
• Intelligence — Analysis, collection support, counterintelligence (requires clearances)
• Facilities — Building operations, maintenance, construction management

5 New Domains Added in Phase II (January 2026):

• Business Administration — Administrative support, records management, correspondence
• Financial Services — Accounting, auditing, budget analysis, financial management
• Human Capital — HR services, training, workforce development, recruiting
• Marketing & Public Relations — Communications, public affairs, outreach, branding
• Social Services — Case management, social work, community programs

The expansion to 13 domains in Phase II significantly broadened OASIS+ coverage. If you were previously told your services didn't fit OASIS+, check again — the new domains may now include your core offerings.

Getting on OASIS+ requires demonstrating capability through a scoring system. You earn credits across multiple categories, and must meet minimum thresholds to qualify.

Scoring Thresholds:

• Unrestricted: 42 credits minimum (out of 50 possible)
• Small Business pools: 36 credits minimum (out of 50 possible)

Credit Categories:

1. Qualifying Projects (QPs) — Up to 25 credits

Your past performance on relevant contracts. Each QP must demonstrate work in the domain you're applying for. Requirements:

• Unrestricted: QPs must have minimum $1,000,000 average annual value
• Small Business: QPs must have minimum $500,000 average annual value
• Projects must be completed within the past 5 years or currently active
• You need multiple QPs per domain — one project won't be enough

2. Past Performance Ratings — Up to 10 credits

CPARS (Contractor Performance Assessment Reporting System) ratings on federal contracts. Exceptional and Very Good ratings earn the most credits. If you don't have federal past performance, commercial references can partially substitute.

3. Federal Prime Experience (FPE) — Up to 5 credits

Credit for work performed as a prime contractor (not a sub) on federal contracts. Demonstrates you can manage the prime role, not just perform as a subcontractor.

4. Contractor Business Systems — Up to 5 credits

Certifications and systems including:

• DCAA-approved accounting system
• ISO 9001 quality management
• ISO 27001 information security
• CMMI certification levels

5. Facility Clearances — Up to 3 credits

If your company holds facility security clearances (SECRET, TOP SECRET), you earn additional credits. Essential for Intelligence domain work.

6. Other Certifications — Up to 2 credits

Industry-specific certifications relevant to your domains (PMP-certified staff, professional engineering licenses, etc.).

Unlike traditional contract vehicles with fixed solicitation windows, OASIS+ uses continuous on-ramping. The solicitation is always open — you can submit your proposal whenever you're ready.

Step 1: Access the OASIS+ Symphony Portal

All OASIS+ proposals must be submitted through GSA's Symphony Portal. Create an account at the GSA eBuy portal and access OASIS+ solicitations. You'll need your SAM.gov registration to be active.

Step 2: Select Your Pool(s) and Domain(s)

Choose which of the 6 pools you're eligible for based on your business size and certifications. Then select the domains that match your service offerings. You can apply to multiple pools and domains simultaneously.

Step 3: Complete the Qualification Matrix

For each domain, you'll complete a scorecard documenting your:

• Qualifying Projects with contract details, values, and descriptions
• Past performance ratings and references
• Business systems certifications
• Facility clearances
• Relevant certifications and credentials

Step 4: Submit Supporting Documentation

Upload contracts, CPARS reports, certification documents, and other evidence supporting your qualification claims. GSA verifies everything — don't overstate your qualifications.

Step 5: GSA Evaluation

GSA evaluates proposals on a rolling basis. There's no fixed timeline, but expect several months for evaluation and award. You can track status through the Symphony Portal.

Step 6: Contract Award

If you meet the scoring threshold, GSA issues your OASIS+ contract. You're then eligible to compete for task orders in your awarded domains.

Pro Tip: Don't wait until you have "perfect" qualifications. The 36-credit threshold for small business is achievable with solid past performance. Apply now and add domains later as you build more experience.

Once you hold an OASIS+ contract, the real work begins: winning task orders. Here's how agencies buy through OASIS+:

Task Order Process:

1. Agency identifies requirement — A program office needs professional services
2. Contracting officer selects OASIS+ — They choose OASIS+ as the contract vehicle and determine the appropriate pool (SB, 8(a), etc.) and domain
3. RFQ/RFP posted to GSA eBuy — The task order solicitation goes to all OASIS+ holders in that pool/domain
4. Fair opportunity — All eligible contract holders can submit proposals
5. Evaluation and award — Agency evaluates and awards to the best value offeror

Task Order Types:

• Fixed-Price — You deliver the scope for a set price
• Time & Materials (T&M) — Hourly rates for labor, typically for undefined scope
• Labor-Hour — Similar to T&M without materials
• Cost-Reimbursement — Government reimburses allowable costs plus fee
• Incentive — Performance-based with incentive/award fees

Where to Find Task Orders:

All OASIS+ task order opportunities are posted on GSA eBuy. Set up your eBuy profile with your OASIS+ contract number, domains, and NAICS codes. Enable email notifications so you don't miss opportunities.

8(a) Sole Source Advantage:

If you hold OASIS+ 8(a), agencies can award sole-source task orders up to $4.5 million for services without competition. This is a massive advantage — build relationships with contracting officers and make sure they know you're on OASIS+ 8(a).

How does OASIS+ compare to other major contract vehicles? Here's when to use each:

OASIS+ vs. GSA Schedule (MAS)

• GSA Schedule: Simpler to get on, good for commercial services, broad government access, requires published pricing
• OASIS+: Higher qualification bar, better for complex/customized services, no published pricing requirement, often larger task orders
• Best practice: Have both. GSA Schedule for smaller, faster buys. OASIS+ for major engagements.

OASIS+ vs. Agency-Specific IDIQs

• Agency IDIQs: Limited to one agency's requirements, may have specialized focus
• OASIS+: Governmentwide scope, access to all federal agencies
• Best practice: Pursue both. Agency IDIQs for targeted accounts, OASIS+ for broad coverage.

OASIS+ vs. Alliant 3 / SEWP

• Alliant 3: GSA's IT-specific GWAC, focused on technology solutions
• SEWP: NASA's IT hardware and services vehicle
• OASIS+: Broader professional services scope, not IT-specific
• Best practice: If you're IT-focused, pursue Alliant 3 AND OASIS+ Technical domain.

When OASIS+ Is Your Best Option:

• Complex professional services engagements
• Task orders over $1M
• Multi-domain requirements (management + technical + logistics)
• Agencies seeking socioeconomic set-asides (use SB pools)
• Long-term program support contracts

For a deeper comparison of all contract vehicle types, see our Federal Contract Vehicles Guide.

Getting on OASIS+ is just step one. Winning task orders requires active pursuit. Here are proven strategies:

1. Monitor GSA eBuy Daily

Task order opportunities move fast. Set up automated alerts for your domains and NAICS codes. Check eBuy every morning. Missing a deadline by one day means losing the opportunity entirely.

2. Build Agency Relationships BEFORE Opportunities Drop

Contracting officers often know about requirements months before the RFQ posts. Attend industry days, meet with small business specialists, and cultivate relationships with program offices. When they need your services, you want to be the first name they think of.

3. Respond to Every Relevant Opportunity

Volume matters on OASIS+. Your first 10 proposals teach you the evaluation patterns. Your win rate improves with experience. Don't be selective early — bid on everything in your domains to build momentum.

4. Invest in Quality Proposals

OASIS+ task order proposals are evaluated competitively. Generic, cut-and-paste responses lose. Tailor every proposal to the specific requirement. Address evaluation criteria explicitly. Show you understand their mission.

5. Price Competitively

Many OASIS+ task orders are awarded on "lowest price technically acceptable" (LPTA) basis. Know your competitors' rates. Price to win, not just to cover costs. Use the Expiring Contracts Finder to research incumbent pricing on recompetes.

6. Team Strategically

If a task order requires capabilities you don't have, team with another OASIS+ holder. Joint ventures and teaming arrangements are common. Larger deals often go to teams, not single companies.

7. Leverage Your Small Business Status

If you're on OASIS+ 8(a), SDVOSB, HUBZone, or WOSB, agencies have incentive to use your pool to meet small business goals. Remind them. Make it easy for contracting officers to justify selecting you.