Buy Services

There are two ways agencies can buy professional services through GSA.

Professional Services Schedule
A Multiple Awards Schedule with more than 3,700 vendors providing a full range of professional services.

One Acquisition Solution for Integrated Services Contracts (OASIS)
Multiple award, Indefinite Deliver Indefinite Quantity contracts that provide flexible and innovative solutions for complex professional services.

Professional services encompasses services that are advisory, problem-solving, and intellectual in nature and require advanced subject matter knowledge including:

Management and advisory services;
Technical and engineering services;
Research and development;
Financial services;
Business administration services;
Social services;
Marketing and public relations services; and
Legal services.

Last Reviewed: 2023-05-18

PER DIEM LOOK-UP

1 Choose a location

Error, The Per Diem API is not responding. Please try again later.

No results could be found for the location you've entered.

State

City (optional)

ZIP

Rates for Alaska, Hawaii, U.S. Territories and Possessions are set by the Department of Defense.

Rates for foreign countries are set by the State Department.

2 Choose a date

Select Fiscal Year

Travel start date (mm/dd/yyyy)

Travel end date (mm/dd/yyyy)

Rates are available between 10/1/2020 and 09/30/2023.

The End Date of your trip can not occur before the Start Date.