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Buy through us
Explore buy through us
Category management
Government property for sale or lease
Personal property (tangible goods)
Real property (real estate and buildings) for public use
Real property sales
Vehicle sales
Products and services
Human capital
Industrial products and services
Office management
Professional services
Security and protection
Transportation and logistics services
Purchasing programs
Assisted acquisition
Commercial platforms
Emergency acquisition basic ordering agreements
Federal strategic sourcing initiative
Fleet management
HCaTS and HCaTS SB
OASIS and OASIS SB
Requisition programs
State and local programs
Shared services
Payroll services
Support services for CABs
Sell to government
Explore sell to government
Step 1: Learn about government contracting
Ways you can sell to government
How to access contract opportunities
Conduct market research
Step 2: Compete for a contract
Register your business
Certify as a small business
Become a schedule holder
Market your business
Research active solicitations
Respond to a solicitation
What to expect during the award process
Step 3: Manage your contract
Comply with contractual requirements
Handle contract modifications
Monitor past performance evaluations
Real estate
Explore real estate
Design and construction
3D-4D building information modeling
Computer-aided design standards
Engineering
Project management information system
Prospectus thresholds
Facilities management
Security
Tenant services
Water quality management
Our properties
Owned and leased properties
Regional buildings
Renting property
Real estate services
Leasing
Real property disposal
Reimbursable services (RWA)
For businesses seeking opportunities
For workers in federal buildings
Voice of the customer
Workplace optimization
Commercial coworking
Federal coworking
Policy and regulations
Explore policy and regulations
Acquisition management policy
Aviation management policy
Information technology policy
Real property management policy
Relocation management policy
Travel management policy
Vehicle management policy
Regulations
Federal acquisition regulations
Federal management regulations
Federal travel regulations
Small business
Explore small business
Small business goals
Register your business
Explore business models
Research the federal market
Subcontracting and other partnerships
Forecast of contracting opportunities
Small business resources
Small business contacts
Small business events
Videos
Travel
Explore travel
Plan a trip
Per diem rates
Transportation (airfare rates, POV rates, etc.)
Lodging
Travel charge card
Travel and lodging services
E-gov travel service (ETS)
Rideshare
Travel category schedule
Federal travel regulation
Technology
Explore technology
Build websites and digital services
Purchasing programs
Cloud computing services
Cybersecurity products and services
Governmentwide acquisition contracts
MAS information technology
USAccess
Government initiatives
Artificial Intelligence
Cybersecurity
Emerging citizen technology
FedRAMP
Federal identity, credentials, and access management
Robotic process automation community
Technology modernization fund
Training
About us
Explore about us
Background and history
Overview
Mission and strategic goals
Role in presidential transitions
Careers
Get an internship
Launch your career
Elevate your professional career
Discover special hiring paths
Resources and related links
Events and training
Our training programs
Newsroom
Agency blog
Congressional testimony
GSA does that podcast
News releases
Speeches
Videos
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Leadership directory
Federal Acquisition Service
Public Buildings Service
Staff offices
Regions
Region 1 | New England
Region 2 | Northeast and Caribbean
Region 3 | Mid-Atlantic
Region 4 | Southeast Sunbelt
Region 5 | Great Lakes
Region 6 | Heartland
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Region 11 | National Capital Region
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  6. OASIS Plus
  7. About OASIS Plus

About OASIS+

One Acquisition Solution for Integrated Services Plus or OASIS+, is a suite of governmentwide, multiple-award contracts designed to support federal agencies’ procurement requirements for services-based solutions. This suite of services contracts is available for use by agencies throughout the Federal Government who hold a Delegation of Procurement Authority or DPA.

OASIS+ is a collection of indefinite delivery, indefinite quantity or IDIQ contracts, of which the contract base period is five years with one option period of five years that may extend the cumulative contract ordering period to 10 years. Task orders can be awarded under OASIS+ any time prior to the expiration of the ordering period of the master contracts. Notwithstanding, the OASIS+ IDIQ master contracts (contractor specific) can have different award dates; however, all contracts for each specific MAC have the same contract end dates (e.g., all of the Small Business contracts will end on the same date).

OASIS+ contracts may be used by all federal agencies, including the Department of Defense and Federally Funded Research and Development Centers, or FFRDCs, but are not open to state and local governments at this time.

Orders issued against the OASIS+ contracts are considered Interagency Acquisitions. GSA has specific statutory authority under 40 U.S.C. 501 to purchase supplies and non-personal services on behalf of other agencies. Therefore, the Economy Act does not apply to OASIS+ orders.

A streamlined program with expanded offerings

Under the OASIS+ program, this suite of contracts combines the scope of legacy OASIS, Building Maintenance & Operations, or BMO, and Human Capital & Training Solutions or HCaTS, along with new areas of service that were previously not in scope. It expands the range of service offerings for buyers and gives sellers a greater variety of areas they can compete for.

GSA is responsible for the award, administration, and management of the OASIS+ IDIQ contracts. Each task order placed against OASIS+ will have its own Requiring Activity (agency requesting services) and an Ordering Contracting Officer, or OCO (person who performs the acquisition). OASIS+ will enable federal customers to acquire innovative solutions from highly qualified businesses on a contract vehicle designed to be Best-in-Class, or BIC: a governmentwide designation that satisfies key criteria defined by the Office of Management and Budget.

  • Learn more about contracts
  • Learn more about domains and labor categories

GSA eBuy procurement tool

Upon award of OASIS+ contracts, GSA eBuy will be the required task order solicitation tool. GSA eBuy provides ordering contracting officers and industry partners a centralized portal with real-time, automated responses when solicitations are issued, increasing acquisition efficiency and transparency. In addition, GSA eBuy provides program and contract management tools that mitigate risks associated with fair opportunity by streamlining management and oversight.

For OASIS+ customers, GSA eBuy will provide the capability to:

  • Review awarded vendors
  • Submit RFIs, RFPs and amendments
  • Manage task orders from solicitation to task order award
  • Provide a secure environment to release information only to OASIS+ contract holders

For OASIS+ industry partners, GSA eBuy serves as a single location to receive solicitations providing the capability to:

  • View solicitations/RFIs/RFPs released via GSA eBuy all in one place
  • Maintain/update email POC for automated email notifications
  • Respond to RFIs/RFPs and MRAS requests
  • Submit proposals securely and directly to the buying agency
  • Receive automated notifications
  • Act as a repository for historical solicitation documents going forward

Training is available to help you register, navigate, and use the tool:

  • Resources for a full list of trainings

Built for the future

OASIS+ represents a bold step by GSA to innovate on the successes and opportunities gleaned from the OASIS program over the years. Drawing on these learnings, we are building a more robust suite of IDIQ contracts for the next generation of professional services solutions, that will be flexible enough to meet federal customers’ increasingly complex requirements.

OASIS+ is flexible, easy to use, and allows ordering activities to solicit and/or award orders in a streamlined, high quality manner. The benefits of OASIS+ include:

  • Task orders that may be:
    • Awarded against six different IDIQ contracts that have no contract ceiling or cap on awards;
    • For work performed inside the Continental United States and/or outside Continental United States locations;
    • For complex commercial or non-commercial services;
    • For any contract type, including hybrid mix and structures of Contract Line Item Number or CLIN types tailored to individual task order requirements;
  • Open on-ramping; after the initial phase of awards, the solicitation for OASIS+ will remain continuously open, allowing potential industry partners to obtain OASIS+ contracts at any time as long as they qualify;
  • Flexible/expandable Domain-based structure; ability to add Domains based on government need;
  • A cumulative ordering period of 10 years;
  • Technology-based ordering and market research tools;
  • Access to an industrial base of highly qualified contractors;
  • Ancillary services and Other Direct Costs or ODCs defined as integral and necessary to complete a total integrated solution under a requirement are within the scope of the master contract;
  • Access to transactional data and data analytics for spend analysis and market research;
  • Save time without having to complete the following, which have already been completed at the OASIS+ master contract level;
    • FAR subpart 9.1 responsibility determinations;
    • General Services Administration Manual/Regulation (GSAM/R) 505.303-70 congressional notifications; however, the ordering agency specific policies will still be applicable/required.

OASIS+ will:

  • Fulfill federal agencies’ non-IT services requirements through highly qualified contractors and a simpler buying experience.
  • Expand access to Best-in-Class non-IT service contracts for highly qualified contractors by providing increased small business opportunities and an improved selling experience.
  • Encourage competition among services contractors to provide best value mission outcomes.
  • Maximize small business participation by removing barriers to entry and helping customer agencies acquire the best professional services solutions to meet their requirements.

Key features

  • Flexible/expandable domain-based structure
  • Global access to commercial and noncommercial structures
  • No contract ceiling or cap on awards
  • Industrial base of highly qualified contractors
  • 10-year period (base of five years + one five year option period)
  • Open on-ramping after initial awards
  • Price evaluation at the contract level
  • Task order solicitation through a single platform, GSA eBuy

Learn more about how OASIS+ compares to legacy OASIS

This text should be removed when the Views module is implemented and the buyers’ guide is no longer dependent on Text Blocks.

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Last updated: Apr 29, 2025
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