One Acquisition Solution for Integrated Services (OASIS) is a government-wide multiple award, indefinite delivery, indefinite quantity (MA-IDIQ) task order contract. OASIS is designed to address government agencies' needs for a full range of professional service requirements for solutions that span multiple core professional service disciplines (program management, management consulting, logistics, engineering, scientific, and financial); contain significant IT components (but are not IT requirements themselves); contain ancillary support components [commonly referred to as other direct costs (ODCs)]; allow flexibility for all contract types at the task order level; and integrate multiple professional service disciplines. 

OASIS provides agencies with total integrated solutions for many professional service-based requirements on a global basis. Areas of expertise include, but are not limited to:

  • Communication
  • Compliance
  • Defense
  • Disaster
  • Energy
  • Environment
  • Financial
  • Health
  • Intelligence
  • Security
  • Transportation

OASIS may be used to support and/or improve an organization's Program Management, Management Consulting, Engineering, Scientific, Logistics, and Financial disciplines that span all lifecycle phases for a total integrated solution, as depicted in the OASIS Program Architecture and Core Disciplines illustration (see link in right side bar).

Regardless of an agency's expertise or mission space, OASIS can be used to support and improve an organization's program management, management consulting, engineering, logistics, or financial services requirement to deliver a total integrated solution.​​​​​​​​​​​​​​​​


  • Spans 28 North American Industry Classification System (NAICS) codes and six NAICS code exceptions under the economic subsector 541, Professional, Scientific, and Technical Services
  • Potential 15-year contract (5-year base period with one 5-year option and an additional 5 years of task order performance when applicable)
  • No ceiling
  • Supports CONUS and OCONUS
  • All task order contract types (e.g., fixed price, cost reimbursement, incentive, time and materials, labor hours, or hybrid)
  • Ancillary support, integral and necessary as part of a total professional service solution for which there is not a labor category specified in OASIS, is allowable
  • ODCs including travel, materials, equipment, and subcontractors are allowable to obtain a total professional service solution
  • Aggressive small business subcontract goals–50% of subcontracted dollars
  • Pre-competed, easy-to-use contract with streamlined ordering procedures based on FAR 16.505
  • Complimentary scope and compatibility review
  • Innovative tiered access fee ranging from 0.1 percent to 0.75 percent based on obligation level
How to Use

The General Services Administration (GSA) designed the OASIS contract for easy use and has provided two flexible options for placing task orders:

  • If your organization has its own contracting officer, you can use the OASIS Direct Order/Direct Bill feature. Contracting Officers who do not have an OASIS delegation of authority issued by GSA can obtain one through a simple procedure managed by the GSA OASIS Program Office. Visit GSA's Delegation of Procurement Authority website at: http://www.gsa.gov/portal/content/178207
  • GSA's Assisted Acquisition Services (AAS) can help you navigate all or part of the OASIS task-order process, from procurement through performance and closeout. Access the Assisted Acquisition website to learn more: http://www.gsa.gov/portal/category/21310

For additional information, refer to "How to Use OASIS" at:


Program management services: Leading, facilitating, and ensuring the strategic planning, implementation, coordination, integration, and evaluation of programmatic activities and administrative systems. ManTech's capabilities include, but are not limited to:

  • Intelligence Analysis
  • Business Intelligence Support
  • Cost/Schedule/Performance Analysis
  • Cost Estimation and Analysis
  • E-Business Support
  • Information Analytics
  • Technical Assessment
  • Integrated Program Management
  • Project Management
  • Capabilities Integration and Development
  • Acquisition Support
  • Regulatory Compliance
  • Risk Assessment and Mitigation
  • Integration of Support Systems
  • Requirements Management
  • Manpower Estimating
  • Stakeholder Requirements Analysis
  • Decision Analysis
  • Technical Planning
  • Program Management
  • Cost/Performance Trade-Off Analysis and Studies
  • Risk Management
  • Configuration Management
  • Technical Data Management
  • Interface Management
  • Threat Analysis
  • Knowledge Based Acquisition
  • Vulnerability Assessment
  • Counterintelligence Support
  • Program Documentation
  • Planning, Programming, Budgeting, and Execution Processes

More Info


Management consulting services: Helping organizations improve their performance, primarily by analyzing existing organizational problems and developing improvements. ManTech's capabilities include, but are not limited to:

  • Business Process Reengineering
  • Business Case Development Support
  • Change Management
  • Strategy Development
  • Concept Development and Requirements Analysis
  • Knowledge Management
  • Training and Facilitation
  • Strategic Planning
  • Strategic Forecasting
  • Long-Range Planning, Futures, and Forecasting
  • Tactical and Readiness Planning
  • Information Analytics
  • Technical Advisory Services
  • Cost/Schedule/Performance Improvement
  • Relations and Coordination with Law and Policy Making Entities

More Info


Logistics services: Managing the flow of resources (not just goods) between the origin and destination to meet the requirements. Logistics integrates information, transportation, inventory, warehousing, material handling, packaging, security, and any other function necessary to the flow of resources. ManTech's capabilities include, but are not limited to:

  • Deployment Logistics
  • Logistics Management and Support Services
  • Disaster Management/Contingency Operations
  • Repair and Alteration
  • Logistical Studies and Evaluations
  • Integrated Logistics Support (ILS) Technical Requirement Creation
  • ILS Risk Assessments
  • Logistics Optimization
  • Analysis and Recommendation of Support Equipment
  • Logistics Design
  • Supply Chain Management and Provisioning
  • Infrastructure Services Including Transportation and Delivery
  • Logistics Operations Support
  • Logistics Operations and Maintenance
  • Distribution and Transportation Logistics Services
  • Logistics Training Services
  • Security
  • Integrated Logistics Support Technical Requirement Creation
  • Value Chain Management
  • ILS Schedules Creation and Performance Tracking
  • Technology and Industrial Base Analysis
  • Test Range Support
  • Lifecycle Sustainment
  • Supportability Analysis and Implementation
  • Inventory Management

More Info


Engineering services: Consulting, investigating, evaluating, planning, designing, systems engineering, technology pilots, configuration management, design, process improvement, environmental, human factors, IV&V, integration, quality assurance, life cycle management, operation and maintenance, aeronautical, chemical, and electrical services, etc. ManTech's capabilities include, but are not limited to:

  • Systems Engineering
  • Lifecycle Management
  • Configuration Management
  • Concept Development
  • System Integration
  • Engineering Process Improvement
  • Design Documentation and Technical Data
  • System Verification and Validation
  • Interoperability
  • Environmental Management
  • Technical Documentation
  • Red Teaming and Wargaming
  • System Security and Information Assurance
  • Prototyping and Fabrication Support (ManTech maintains a 10,000 sq. ft. clean room fabrication/integration facility)
  • Engineering (Aeronautical, Astronautical, Chemical, Electrical, Mechanical, Metallurgy/Materials, etc.)
  • Communications Engineering
  • Data Analytics
  • System Design
  • Quality Assurance
  • Integration
  • Requirements Analysis
  • Architecture Design (for Hardware and Systems)
  • System Safety Engineering
  • Baseline (Configuration) Management
  • Environmental Consulting and Remediation
  • Architecture Design
  • Radar Engineering
  • Advanced Technology Pilots and Trials
  • Operation and Maintenance or Direct Support of an existing Weapon System or Major System
  • Software Independent Verification and Validation (for non-IT requirements)
  • Modeling and Simulation
  • Human Systems Integration
  • Systems Engineering Training
  • Data Management
  • Risk Management
  • Technical Planning
  • Independent Verification and Validation
  • Test and Evaluation
  • System Effectiveness and Analysis
  • Natural Resources Management
  • Mission Assurance
  • Launch Processing and Verification
  • Software Development (for non-IT requirements)
  • Optical Engineering (ManTech maintains an Optical Test Lab)

More Info


Scientific services: Applying comprehensive scientific and professional knowledge to plan, conduct, evaluate, and manage fundamental research, knowledge enhancement, and/or technology development and innovation. ManTech's capabilities include, but are not limited to:

  • Environmental Sciences
  • Engineering Sciences
  • Physical Sciences
  • Decision Support Sciences

More Info


Financial management services: Planning, directing, monitoring, organizing, and controlling the monetary resources of an organization. ManTech's capabilities include, but are not limited to:

  • Budget Analysis and Tracking
  • Cost Estimating and Analysis Support
  • Impact Statement Development
  • Cost Performance Risk Assessments
  • Total Ownership Cost Determination
  • Disbursement and Reconciliation Support
  • Business Information Services
  • Financial and Financial Risk Analysis
  • Financial Management
  • Safeguarding Personal Data
  • Return on Investment Analysis
  • Program Management for Financial Services
  • Lifecycle Cost Determination
  • Economic Analysis
  • Affordability Analysis
  • Analysis of Cost Alternatives
  • Should-Cost Determinations

More Info


Other Details
​​DUNS Number: 139627525

CAGE Code:  5N741
Email: OASIS@ManTech.com

Contract Numbers:

Key Certifications and Credentials:

  • ManTech is CMMI Level 3, ISO 9001:208, and AS9100C certified
  • ManTech holds both DCMA-approved purchasing and estimating systems
  • ManTech has numerous cleared facilities and personnel


Key Personnel:

Paula Bayliss
Program Manager
2250 Corporate Park Drive
Herndon, VA 20171
Phone: (703) 633-2458
Email: Paula.Bayliss@mantech.com

Jeromy Block
Contracts Manager
2250 Corporate Park Drive
Herndon, VA 20171
Phone: (703) 218-6440
Email: Jeromy.Block@mantech.com

Tess (Maria) Palao
Director, Small Business Program GWAC Center
2250 Corporate Park Drive
Herndon, VA 20171
Phone: (703) 814-4224
Email: Tess.Palao@mantech.com

James Fraser
Vice President GWAC Center
2250 Corporate Park Drive
Herndon, VA 20171
Phone: (703) 326-3467
Email: Jim.Fraser@mantech.com

Terrance Hobson
Business Development Manager
Phone: 703-814-4300
Email: Terrance.Hobson@ManTech.com

Mark Christiansen
Business Analyst
Phone: 703-814-4219
Email: Mark.Christiansen@ManTech.com

Section 508

As the premier provider of professional services to the Federal Government, ManTech assists federal agencies and their clients in properly interpreting and implementing the requirements of Section 508 of the Rehabilitation Act of 1973 ("Section 508"). ManTech is ready to advise our customers at any time during the EIT procurement lifecycle–from performing Section 508 requirements analyses or market surveys to providing compliant goods or services needed by our customers to meet their mission requirements. When providing goods and services covered by Section 508, ManTech informs its customers about Section 508 compliance so that they may make informed procurement decisions and satisfy the requirements of the A​ct. Section 508 compliance information may include completed compliance matrices in the form located at http://www.section508.gov or other information from our third-party EIT product suppliers and manufacturers.