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GSA Professional Services Schedule (PSS) Prime Contractor

The GSA Professional Services Schedule (PSS) – The GSA PSS is an Indefinite Delivery/Indefinite Quantity (IDIQ) Multiple Award Schedule (MAS) contract.


This contract intends to provide direct access to simple or complex fixed-price or labor-hour professional services. Services and solutions offered by GSA PSS include advertising and marketing, business consultations, environmental solutions, financial and business solutions, language services, and logistic and professional engineering solutions.


Williams Consulting LLC supports the following available GSA PSS services:

  • Business Consulting

  • Business Solutions

  • Language Services

  • Logistics Solutions

  • Management Consulting

  • Technical Assistance


Contract Number: GSOOF209DA

Contract Vehicle: Professional Services Schedule

Contract Period: 2016 - 2026


Contract Benefits

  • Simplified acquisition procedures

  • Brings a wide variety of industry partners to the negotiating table

  • Customizes terms and conditions in task orders

  • Ensures adequate participation by small businesses, including setting aside RFQs for various socioeconomic subgroups

  • Shortens procurement procedures


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