Professional Services Schedule (PSS)

The Professional Services Schedule (PSS) is a GSA Multiple Award Schedule (MAS) contract vehicle that enables federal agencies to procure a wide range of management, advisory, and professional support services from pre-qualified contractors at pre-negotiated rates.

What is the Professional Services Schedule (PSS)?

The PSS is one of the largest and most widely used GSA Schedule categories, covering services such as management consulting, program evaluation, financial management, human resources, logistics consulting, language services, and related advisory support. Like all GSA Schedules, the PSS is a multiple-award vehicle meaning many contractors hold contracts simultaneously, and individual agencies issue task orders by competing among PSS holders through GSA eBuy or direct ordering. The schedule was incorporated into the consolidated GSA Multiple Award Schedule program but continues to be recognized as a major service category under its own SINs. PSS contractors range from large management consulting firms to small boutique advisory shops, and the schedule includes both unrestricted and small-business-friendly ordering options. Because the PSS covers such a broad range of professional expertise, it is among the most commonly used vehicles by civilian agencies for non-IT advisory and analytic work.

Why PSS matters for government contractors

The PSS is often the fastest path for management consulting and professional services firms to enter the federal market. Once a firm has a PSS contract, it can receive orders from any federal agency without competing in a full open market solicitation. The vehicle is especially important for small and mid-size consultancies that lack the resources to win agency-specific IDIQs but can compete effectively on task orders within the Schedule.

Example

A boutique strategy consulting firm wins a PSS contract with SINs for management and financial consulting. The Government Accountability Office issues a task order request through eBuy for an organizational effectiveness study. The firm submits a quote, wins the work, and delivers a final report, all without needing a pre-existing agency relationship or agency-specific contract.

Frequently Asked Questions

How is the PSS different from OASIS+?

OASIS+ is a more complex, higher-ceiling vehicle typically used for larger, more integrated professional services engagements. The PSS is generally simpler to obtain and used for a broader range of advisory and consulting tasks. Many firms hold both to maximize their coverage of the professional services market.

What professional services are NOT covered by the PSS?

The PSS does not cover IT services (which fall under IT-specific schedules), construction and architecture-engineering (covered by separate vehicles), or classified professional services. Firms offering these services should explore the appropriate specialized schedule or vehicle.

Can agencies use the PSS for large, multi-year contracts?

Yes. While individual PSS task orders can vary in size, agencies can issue substantial multi-year task orders under the schedule. There is no task order ceiling limitation on PSS orders unless the agency imposes one internally.

How long does it take to get a PSS contract?

GSA processes PSS applications through the MAS program. Timelines vary but typically range from a few months to over a year depending on application completeness, current GSA workload, and whether additional negotiations are required on pricing or terms.