Service companies need GSA's 00Corp (Professional Services Schedule (PSS)) schedule to prosper in the current government marketplace.

Federal contracting officers are relying more and more on government-wide acquisition contracts (GWACs) to buy professional services and the single award solicitation for professional services is becoming obsolete.

Two GWACs provide purchasing vehicles for professional service:

The GSA OASIS GWAC - OASIS is closed for new offers for the next several years and new offers are not being considered.

The 00Corp GSA Schedule, 00CORP is always open for new offers.

• Advertising and Integrated Marketing Services (AIMS)
• Language Services
• Professional Engineering Services (PES)
• Mission Oriented Business Integrated Services (MOBIS)
• Logistics Worldwide (LOGWORLD)
• Environmental Services
• Financial and Business Services

Unlike other GWACs (including OASIS),00CORP is always open for an offer (proposal). And GSA has stated that the only two professional service contracts will be OASIS and the 00CORP GSA Schedule.