Our services can be obtained through a variety of government contract vehicles, providing our clients with fast, easy access to our services.

GSA Multiple Award Schedule (MAS) Number GSA00F280GA

The Multiple Award Schedule (MAS) is an indefinite delivery/indefinite quantity (IDIQ) multiple award schedule, providing direct access for all government agencies to simple or complex fixed-price or labor-hour professional services. It uses the streamlined procurement procedures in FAR Subpart 8.4 and simplified acquisition procedures. MSI is a holder of the following Special Item Numbers (SINs) under the MAS:

Marketing and Public Relations

  • SIN 541820/541820RC – Public Relations Services
  • SIN 541613/541613RC – Marketing Consulting Services
  • SIN 541910/541910RC – Marketing Research and Analysis
  • SIN 541810ODC/541810ODCRC – Other Direct Costs

Business Consulting Solutions

  • SIN 541611/541611RC – Management and Financial Consulting, Acquisition and Grants Management Support, Business Program and Project Management Services


  • SIN 611430/611430RC – Professional and Management Development Training

Technical and Engineering Services (non IT)

  • SIN 541690/541690RC – Integrated Logistics Support

Order Level Materials

  • SIN OLM/OLMRC – OLMs are supplies and/or services acquired in direct sup­port of an individual task or delivery order placed against a Schedule contract or BPA.

MSI’s catalog and price list can be found here: Federal Supply Schedule brochure.

MSI’s catalog can also be accessed through the GSA website:

MSI point of contact: Kathy Shelton, Director of Operations
Email: [email protected]
Cell: 540-840-7205

One Acquisition Solution for Integrated Services (OASIS)

OASIS is a Multiple Award, Indefinite Delivery, Indefinite Quantity (MA-IDIQ) contract vehicle that provides flexible and innovative solutions for complex professional services.

Services under OASIS are awarded under seven North American Industry Classification System (NAICS) pools. Tetra Tech was awarded three contracts for work in NAICS Pools 1, 3, and 4. Work may cross over multiple disciplines and span many areas of expertise with task orders being assigned in the NAICS pool with the greatest percentage of anticipated requirements.

Read more.

MSI is the prime holder of the following global IQCs, IDIQs and BPAs (click on the contract vehicle below for additional information):

USAID Programming Effectively Against Conflict and Extremism (PEACE) IQC Number AID-OAA-I-13-00042

MSI point of contact: Ali Poyac-Clarkin, Technical Director
Email: [email protected]
Tel: 703-979-7100

Global Support Which Implements Fast Transition IV (SWIFT IV) IQC Number AID-OAA-I-14-00012

MSI point of contact: Ryan Young, Technical Manager
Email: [email protected]
Tel: 703-979-7100

USAID Human and Institutional Capacity Development (HICD) for Critical Priority Countries (CPCs) IDIQ Number AID-OAA-I-13-00049

MSI point of contact: Suzanne Bond, Technical Director
Email: [email protected]
Tel: 703-979-7100

USAID Science, Technology, Innovation and Partnership (STIP) Training and Capacity Building and Support Blanket Purchase Agreement Number AID-OAA-E-16-00013

MSI point of contact: John Haecker, Technical Director
Email: [email protected]
Tel: 703-979-7100

USAID Governance Integration for Stabilization and Resilience in the Middle East and North Africa (under the OASIS Schedule)

MSI point of contact: Dr. Perin Arkun, Senior Project Manager
Email: [email protected]
Tel: 703-979-7100

Monitoring, Evaluation, and Learning Services in the Middle East and North Africa (MENA-MELS)

MSI point of contact: Christine Mulligan, Chief of Party
Email: [email protected]
Tel: 703-979-7100

MSI is the prime holder of the following U.S. Department of State Global Performance Management and Evaluation Services IDIQs:

  • Security: IDIQ Number D17PC00110
  • Science & Technology: IDIQ Number D17PC00462
  • Business & Trade: IDIQ Number D17PC00483
  • General Crosscutting: IDIQ Number D17PC00485

Click for more information on State Department IDIQs held by MSI.

MSI point of contact, Betsy Bury, Practice Area Leader, Strategy, Evaluation and Analysis
Email: [email protected]
Tel: 703-979-7100

MSI point of contact: Kathy Shelton, Director of Operations
Email: [email protected]
Tel: 703-979-7100

Learn more about the United Nations Framework Convention on Climate Change – Facilitation, Training and Coaching IQC.

MSI point of contact: John Haecker, Technical Director
Email: [email protected]
Phone: 703-979-7100


If you’d like to learn more about our great organization, we’d love to hear from you.
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