How Small Businesses Can Win Big on OASIS+ Phase II in 2026

Here's a stat that should get your attention: OASIS+, GSA's premier professional services contract vehicle, already supports billions in annual federal spending — and Phase II is about to make it significantly larger. With five brand-new service domains, updated scoring criteria, and small business set-aside pools now open for submissions, the 2026 expansion of OASIS+ is one of the biggest federal BD opportunities of the year.

If your small business delivers professional services to the federal government — or wants to — OASIS+ Phase II is a vehicle you can't afford to ignore. This contract vehicle consolidates professional services procurement for dozens of federal agencies, and being on it means access to task orders worth millions of dollars.

In this post, you'll learn exactly what changed with OASIS+ Phase II, how the new domain structure works, what the scoring requirements mean for your eligibility, and the concrete steps to position your company for award before the competition locks you out.

What Is OASIS+ and Why Does Phase II Matter?

OASIS+ — officially the One Acquisition Solution for Integrated Services Plus — is GSA's flagship indefinite-delivery, indefinite-quantity (IDIQ) contract vehicle for professional and technical services. Agencies across the federal government use OASIS+ to procure a wide range of services including management consulting, program management, scientific and engineering support, and more.

Phase I of OASIS+ launched in 2023 and quickly became one of the most widely used professional services vehicles in government. By the time Phase II was announced in December 2025, agencies had already used OASIS+ to execute hundreds of task orders spanning national security, IT modernization, healthcare management, and logistics.

So why does Phase II matter for small businesses?

Phase II dramatically expands the scope of the vehicle, adding five entirely new service domains that didn't exist in the original contract. This means sectors that were previously ineligible for OASIS+ — like marketing services, financial advisory, and human capital management — can now compete on the vehicle. That opens the door to thousands of small businesses that were previously locked out.

Just as importantly, Phase II maintains dedicated small business and socioeconomic set-aside pools, meaning that if your company holds 8(a), WOSB, HUBZone, or SDVOSB status, you have real competitive advantages built directly into the structure of the vehicle.

Understanding the full GSA Schedule ecosystem is valuable background here. If you're newer to the world of federal contract vehicles, our GSA Schedule consulting guide gives you the foundational context before diving into OASIS+.

The Five New OASIS+ Phase II Domains — What's New and What It Means

Phase II expands OASIS+ from 8 domains to 13 total. Here are the five newly added domains:

1. Business Administration — Covers support services like administrative management, records management, office operations, and facilities coordination.
2. Financial Services — Includes financial analysis, budgeting support, accounting advisory, and auditing services for federal agencies.
3. Human Capital — Encompasses HR consulting, workforce planning, organizational development, and talent acquisition support.
4. Marketing & Public Relations — Public affairs, communications strategy, digital marketing, and outreach campaign support for federal programs.
5. Social Services — Case management, community development, benefits program support, and social science research services.

These aren't niche areas — federal agencies spend billions annually across each of these categories. The Marketing & PR and Human Capital domains alone represent some of the fastest-growing procurement areas in civilian agencies.

How OASIS+ Phase II Scoring Works — The Scorecard Breakdown

This is where most small businesses get confused, so let's break it down clearly.

For each domain, GSA uses a scorecard with 50 total scoring credits. Your company must meet a minimum threshold to qualify:

• Unrestricted pool: Must score 42 or more credits
• Small Business & Socioeconomic set-asides: Must score 36 or more credits

The scorecard credits are earned by demonstrating relevant experience, past performance, key personnel qualifications, and certifications tied to each domain. GSA released draft scorecards for all 13 domains in December 2025, giving contractors the opportunity to self-evaluate before the official solicitation closes.

If you haven't yet pursued certifications like 8(a), WOSB, or HUBZone, this is a powerful reason to start now. Our certifications and GSA guide walks through what each certification means and how to pursue it step by step.

Multi-Domain Eligibility

You can qualify for multiple domains, which dramatically increases your access to task orders. A management consulting firm that also offers HR advisory and financial analysis services could potentially qualify for three or four domains simultaneously — multiplying their addressable market without needing to win a separate contract vehicle.

Phase II Timeline and Submission Deadlines — What You Need to Do Now

Here's the OASIS+ Phase II timeline as of March 2026:

The "continuously open" structure is different from traditional solicitations with hard cutoff dates. However, don't let that create a false sense of urgency. Task orders are already flowing through the vehicle, and agencies are increasingly restricting task order competition to contractors already on OASIS+. Every month you wait is potential revenue going to your competitors.

Immediate action steps:

1. Download the draft scorecards for the domains relevant to your business from GSA's Interact platform
2. Conduct an internal self-assessment against the scoring criteria
3. Identify any gaps — experience, personnel, certifications — and build a plan to address them
4. Review pre-amendment notice #8 for the most current solicitation details
5. Consult with a BD advisor or proposal professional to structure your offer competitively

If you're unsure how to build a federal pipeline from scratch, our opportunity discovery service provides the strategic framework to go from zero to competitive in a structured way.

OASIS+ Phase II vs. Other Contract Vehicles — Should You Prioritize This?

Small businesses often ask: with so many contract vehicles out there — GSA Schedule, SEWP, CIO-SP4, Seaport NxG — why should OASIS+ be a priority?

Here's the short answer: OASIS+ is where professional services consolidation is happening.

GSA and OMB have signaled clearly that they want agencies to use fewer, better-structured contract vehicles. OASIS+ is a centerpiece of that consolidation strategy. Multiple agencies have already begun migrating professional services acquisitions away from individual agency IDIQs and toward OASIS+, which means your OASIS+ placement translates to access across more agencies simultaneously.

OASIS+ vs. GSA Schedule

GSA Schedule (MAS) is better for product or solution offerings and transactional purchases. OASIS+ is specifically designed for complex, integrated professional services — think multi-discipline task orders requiring project management, technical expertise, and cross-functional teams. Many successful small businesses hold both a GSA Schedule and an OASIS+ contract, using each vehicle for what it does best.

OASIS+ vs. Agency-Specific IDIQs

Agency IDIQs give you access to one customer. OASIS+ gives you access to dozens of agencies through a single vehicle. The business development leverage is dramatically higher, and the cost to maintain a single OASIS+ contract is far lower than managing multiple individual IDIQs.

For companies delivering professional services — consulting, training, program support, analytics — OASIS+ Phase II should be at or near the top of your capture priority list for 2026. If you're also evaluating simpler entry points for smaller-dollar work, our guide on SAP contracts under $250,000 is a great complement to your OASIS+ strategy.

Small Business Set-Aside Pools — Your Competitive Advantage

One of the most powerful features of OASIS+ is its set-aside structure. The vehicle has separate pools for:

• Small Business (SB)
• 8(a) Small Disadvantaged Business (SDB)
• Women-Owned Small Business (WOSB)
• HUBZone Small Business
• Service-Disabled Veteran-Owned Small Business (SDVOSB)

When an agency uses OASIS+ to compete a task order, they can restrict competition to one or more of these pools. That means if you're a WOSB on OASIS+, you may be competing against a much smaller field when a contracting officer issues a WOSB-restricted task order.

This set-aside structure makes OASIS+ one of the most important vehicles for certified small businesses in all of federal contracting. It transforms your certification from a registration checkbox into a genuine competitive moat.

How to Position Your Proposal for OASIS+ Phase II — 5 Winning Strategies

Getting on OASIS+ is competitive. The scorecards are detailed, and GSA evaluators are experienced. Here's how to put your company in the strongest possible position:

1. Audit your past performance first. OASIS+ scorecards heavily weight relevant experience and past performance. Before writing anything, catalog every relevant project your company has completed — especially those with clear dollar values, agency names, and demonstrable outcomes tied to the domain you're pursuing.
2. Align your key personnel to the domain. Your proposal will need to demonstrate that your team has the expertise to deliver services in the domain. Make sure your key personnel resumes are current, tailored to the domain's requirements, and highlight relevant certifications, degrees, and measurable accomplishments.
3. Don't spread too thin. It's tempting to go after every domain, but a weak submission in five domains is worse than a strong submission in two. Focus on the domains where your past performance and personnel scores will be highest, and expand from there as you build your track record.
4. Partner strategically. If you're missing past performance in a given domain, consider teaming or subcontracting arrangements with companies that have that experience. Joint ventures can also be a pathway for certified small businesses, particularly under the 8(a) program where SBA-approved mentor-protégé JVs receive special treatment.
5. Use the draft scorecards as your proposal blueprint. The scorecards tell you exactly what GSA is evaluating and how many credits each element is worth. Build your proposal documentation to map directly to each scoring criterion — don't make the evaluator guess how your experience qualifies.

Conclusion

OASIS+ Phase II is one of the most significant federal contracting opportunities of 2026 for small businesses delivering professional services. With five new domains, updated scorecard thresholds that favor certified small businesses, and a continuously open solicitation structure, there has never been a better time to position your company on this vehicle.

Key takeaways:

• Phase II expands OASIS+ from 8 to 13 domains, adding Business Administration, Financial Services, Human Capital, Marketing & PR, and Social Services
• Small businesses need a minimum 36-credit scorecard score (vs. 42 for unrestricted offerors)
• Solicitations re-opened January 12, 2026, and are continuously open — but acting early gives you access to more task orders sooner
• Set-aside pools are maintained across all 13 domains, giving certified businesses a real competitive edge
• Proposal strength depends on past performance quality, key personnel alignment, and strategic domain selection

The longer you wait, the more crowded the vehicle becomes. If you're serious about building federal revenue in 2026, OASIS+ Phase II deserves to be at the top of your BD plan.

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