PSC codes › DA01
PSC DA01 — Business Application/Application Development Support Services (Labor): federal contracts
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What PSC DA01 covers
Description: Support services for activities involved with application development and support to include analysis, design, development, coding, testing, and release packaging, as well as support of off-the-shelf Business Applications.
Includes: User Research, Human Center Design, Development/Security/Operations (DevSecOps), Customer Experience (UX)
Notes: Application development for new software projects and support for existing applications.
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: IT › IT Professional Service (Labor).
Largest recipients of PSC DA01 obligations, FY2025
| Recipient | Obligations | Share |
|---|---|---|
| BOOZ ALLEN HAMILTON INC | $1.2B | 5.3% |
| ACCENTURE FEDERAL SERVICES LLC | $1.1B | 4.7% |
| GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. | $1.0B | 4.5% |
| LEIDOS, INC. | $821.7M | 3.6% |
| CACI, INC. - FEDERAL | $782.5M | 3.5% |
| SCIENCE APPLICATIONS INTERNATIONAL CORPORATION | $724.6M | 3.2% |
| ORACLE HEALTH GOVERNMENT SERVICES, INC. | $616.8M | 2.7% |
| BOOZ ALLEN HAMILTON INC | $456.0M | 2.0% |
| DELOITTE CONSULTING LLP | $380.2M | 1.7% |
| ADVANTAGED SOLUTIONS, LLC | $299.2M | 1.3% |
Largest buyers of PSC DA01, FY2025
| Buyer | Obligations | Share |
|---|---|---|
| Federal Acquisition Service | $2.9B | 12.6% |
| Department of Veterans Affairs | $2.8B | 12.5% |
| Department of the Air Force | $2.4B | 10.6% |
| Department of the Navy | $2.0B | 8.9% |
| Centers for Medicare and Medicaid Services | $1.6B | 6.9% |
| Internal Revenue Service | $962.4M | 4.3% |
| Defense Logistics Agency | $835.1M | 3.7% |
| Defense Information Systems Agency | $824.0M | 3.6% |
| Department of State | $704.5M | 3.1% |
| National Institutes of Health | $601.4M | 2.7% |
USASpending.gov contract obligations by fiscal year of the action.
Who is winning new PSC DA01 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| BOOZ ALLEN HAMILTON INC | $2.3B | 87 |
| CACI, INC. - FEDERAL | $2.1B | 17 |
| ACCENTURE FEDERAL SERVICES LLC | $2.1B | 121 |
| LEIDOS, INC. | $2.0B | 6,855 |
| GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. | $1.7B | 91 |
| DELOITTE CONSULTING LLP | $815.5M | 103 |
| SCIENCE APPLICATIONS INTERNATIONAL CORPORATION | $773.6M | 64 |
| CGI FEDERAL INC. | $581.6M | 35 |
| MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. | $527.6M | 10 |
| ORACLE HEALTH GOVERNMENT SERVICES, INC. | $510.5M | 3 |
How competitive is PSC DA01?
- 85.1% of obligations on these awards were competed.
- 49.3% of competed awards that report offers drew a single offer (n=4,813).
- 35.9% went to small businesses.
- The five largest contractors hold 26.4% across 2,373 contractors.
NAICS codes used on PSC DA01 awards
| NAICS | Industry | Share |
|---|---|---|
| 541512 | Computer Systems Design Services | 46.0% |
| 541519 | Other Computer Related Services | 22.3% |
| 541511 | Custom Computer Programming Services | 18.2% |
| 541513 | Computer Facilities Management Services | 2.4% |
| 518210 | Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services | 2.2% |
| 541330 | Engineering Services | 1.6% |
| 541611 | Administrative Management and General Management Consulting Services | 1.6% |
| 561421 | Telephone Answering Services | 1.2% |
Related PSC codes
DA10 Business Application/Application Development Software As a Service · R499 Other Professional Services · R408 Program Management/Support Services · 7A21 Business Application Software (Perpetual License Software) · AC13 National Defense R&D Services; Department of Defense - Military; Experimental Development · DF01 It Management Support Services (Labor) · R425 Engineering and Technical Services · 7A20 Application Development Software (Perpetual License Software)
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