Marstel-Day's OASIS Schedule

What is OASIS?

OASIS and OASIS Small Business (SB) are multiple award, Indefinite Delivery Indefinite Quantity (IDIQ) contracts providing a comprehensive range of professional services delivering experience and innovation in support agency missions worldwide.

The purpose of OASIS SB is to meet the needs of customers with complex integrated professional service based requirements who cannot use, or find difficulty using, the MAS Schedules, Government-wide Acquisition contracts (GWACs), or other existing vehicles for a solution.

OASIS "Best in Class" contractors are unique in being able to provide highly professional, flexible and innovative solutions for complex professional services across a range of services. Details are:

  • Spans many areas of expertise and mission space;
  • Spans multiple professional service disciplines;
    • Environmental services;
    • Engineering services;
    • Program management services;
    • Management consulting services;
    • Logistics services;
    • Scientific services; and
    • Financial services.
  • Supports commercial and non-commercial services;
  • Available for CONUS and OCONUS requirements;
  • Can be used for classified and unclassified services.

Learn more about OASIS at:

Using Marstel-Day's OASIS Schedule

Contractual Information

OASIS Contract#: 47QRAD20D1089
DUNS#: 38090390
CAGE Code: 1WA73



Marstel-Day environmental consulting helps prepare you for the future. Our strategic and operational policies, assessments and plans for environmental compliance, pollution prevention, natural cultural resources, environmental planning, energy, climate, infrastructure and land use put you at the forefront of resilient solutions.

We understand that our clients are mission driven and often face complex business transformation issues. We help our clients by 1) Developing ideas, building programs and implementing strategic and operational concepts. 2) Facilitating collaboration among diverse stakeholders, 3) Producing highly informed and innovative courses of action, and 4) Providing cost, risk and financing alternatives, recommendations and solutions.

Specific services that we provide include but are not limited to:

  • Base Environmental Realignment and Closure
  • Resilient Infrastructure
  • Geographic Information Systems (GIS)
  • National Environmental Policy Act (NEPA)
  • Cultural Resources
  • Ecosystem Services
  • Managing Encroachment
  • Water Resiliency
  • Energy Resiliency
  • Stakeholder Engagement
  • Community Partnerships
  • Natural REsources
  • Climate Resiliency

For more information please see our business portfolio located here: Marstel-Day Business Portfolio


For more information please email:

Corporate OASIS Program Manager (COPM):
Jason Winner
701 Kenmore Ave, Suite 220,
Fredericksburg, VA 22401
Alternate COPM:
Corey Nelson
701 Kenmore Ave, Suite 220
Fredericksburg, VA 22401
Corporate OASIS Contract Manager (COCM):
Nichole Ferguson
701 Kenmore Ave, Suite 220
Fredericksburg, VA 22401
Alternate COCM:
Kathe Theisen
701 Kenmore Ave, Suite 220
Fredericksburg, VA 22401