Federal Contract Vehicles

OASIS

One Acquisition Solution for Integrated Services

GSA IDIQ Expired
Obligated to date
$51.7B
Task orders
1,359
Companies awarded
72
Ceiling
No program ceiling.

Vehicle overview

One Acquisition Solution for Integrated Services (OASIS) is a government-wide contract vehicle managed by the General Services Administration (GSA). It provides complex professional services across categories such as communication, compliance, defense, disaster, energy, environment, financial, health, intelligence, security, and transportation. This primary vehicle for non-IT professional services has been succeeded by the OASIS+ program.

Eligible users include all Federal agencies and entities listed in GSA Order ADM 4800.2G. The vehicle includes a dedicated OASIS Small Business set-aside.

Vehicle details

Ordering period

OASIS Unrestricted ordering ended on March 1, 2025; existing task orders may continue through March 1, 2030.

Ceiling

No program ceiling.

Where agencies spend through OASIS

See which agencies and types of work reported the most positive obligations through OASIS in the last 12 months.

Coverage period Jul 28, 2025–Jul 27, 2026

OASIS contract holders

Contractor Obligated Task orders
BOOZ ALLEN HAMILTON INC $8.6B 166
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION $6.8B 76
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. $3.7B 84
HII MISSION TECHNOLOGIES CORP $3.7B 40
LEIDOS, INC. $3.5B 86
CACI, INC. - FEDERAL $2.6B 11
CACI NSS, LLC $2.2B 17
NORTHROP GRUMMAN SYSTEMS CORPORATION $2.1B 36
DELOITTE CONSULTING LLP $1.8B 127
MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. $1.5B 15
SMARTRONIX, LLC $1.5B 3
PERATON INC. $1.3B 25
LMI CONSULTING, LLC $1.3B 25
AMENTUM SERVICES, INC. $1.1B 22
PARSONS GOVERNMENT SERVICES INC. $974.0M 36

Top 15 of 72 companies by obligations.

NAICS coverage

NAICS 541330

Frequently asked questions

What is OASIS?
One Acquisition Solution for Integrated Services (OASIS) is a government-wide contract vehicle managed by the General Services Administration (GSA). It provides complex professional services across categories such as communication, compliance, defense, disaster, energy, environment, financial, health, intelligence, security, and transportation. This primary vehicle for non-IT professional services has been succeeded by the OASIS+ program.
Which agency manages OASIS?
One Acquisition Solution for Integrated Services is a IDIQ managed by General Services Administration.
What can agencies acquire through OASIS?
Eligible users include all Federal agencies and entities listed in GSA Order ADM 4800.2G. The vehicle includes a dedicated OASIS Small Business set-aside.
How much has been obligated through OASIS?
$51.7B has been obligated across 1,359 task orders.
Which agencies use OASIS?
In the 12 months ending July 27, 2026, agencies with reported awards through OASIS included the Department of Defense and the Department of Homeland Security. The Department of Defense reported $3.6B in positive obligations for Engineering Services (NAICS 541330). The Department of Homeland Security reported $384.1M in positive obligations for the same type of work (NAICS 541330). The Department of Defense reported $361.3M in positive obligations for Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) (NAICS 541712). Figures use reported USAspending award data.
How many contractors hold OASIS?
72 contractors hold a position on OASIS.
What is the contract ceiling of OASIS?
OASIS has a program ceiling of No program ceiling..
Is OASIS active?
No, OASIS is not currently active — its status is expired (ordering period: OASIS Unrestricted ordering ended on March 1, 2025; existing task orders may continue through March 1, 2030.).

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