Separate size from frequency
Large obligations can come from a small number of major actions. Actions and active fiscal years show whether purchasing is sustained.
Federal PSC Codes
Search every four-character PSC product or service recorded across complete FPDS contract history. Compare market size, purchasing frequency, customer breadth, and the most recent recorded activity.
PSC Directory
Federal PSC Directory
Every four-character PSC code with recorded activity anywhere in FPDS contract history is included. Open a code to continue into its market profile.
3,572 published PSC codes.
| PSC | Product or service | Obligations | Actions | Active FYs | Federal customers | Latest activity |
|---|---|---|---|---|---|---|
| AD91 | R&D- Defense Other: Other (Basic Research)Federal contract product or service | $16.34B | 67,145 | 48 | 34 | Sep 9, 2026 |
| AD26 | R&D- Defense Other: Services (Management/Support)Federal contract product or service | $15.97B | 54,646 | 48 | 162 | Sep 10, 2026 |
| 1315 | Ammunition, 75Mm Through 125MmFederal contract product or service | $15.95B | 6,918 | 48 | 40 | Jul 16, 2026 |
| Z119 | Maint-Rep-Alt/Other Admin BldgsFederal contract product or service | $15.91B | 132,785 | 46 | 145 | Oct 15, 2025 |
| G099 | Social- OtherFederal contract product or service | $15.81B | 48,240 | 49 | 147 | Oct 14, 2026 |
| AC54 | R&D- Defense System: Weapons (Engineering Development)Federal contract product or service | $15.63B | 7,704 | 48 | 14 | Jul 7, 2026 |
| D319 | It And Telecom- Annual Software Maintenance Service PlansFederal contract product or service | $15.48B | 85,478 | 15 | 165 | Sep 29, 2026 |
| J018 | Maint/Repair/Rebuild Of Equipment- Space VehiclesFederal contract product or service | $15.46B | 1,467 | 48 | 22 | Sep 1, 2026 |
| S208 | Housekeeping- Landscaping/GroundskeepingFederal contract product or service | $15.45B | 196,145 | 49 | 136 | Oct 15, 2026 |
| 6350 | Miscellaneous Alarm, Signal, And Security Detection SystemsFederal contract product or service | $15.08B | 112,479 | 49 | 200 | Oct 15, 2026 |
| AZ13 | R&D- Other Research And Development (Advanced Development)Federal contract product or service | $15.07B | 17,639 | 48 | 60 | Sep 14, 2026 |
| S299 | Housekeeping- OtherFederal contract product or service | $15.02B | 107,623 | 49 | 179 | Oct 15, 2026 |
| Q402 | Nursing Home, Long-Term & Adult Day Care ServicesFederal contract product or service | $14.95B | 337,179 | 49 | 20 | Oct 15, 2026 |
| K016 | Modification Of Equipment- Aircraft Components And AccessoriesFederal contract product or service | $14.85B | 16,708 | 48 | 18 | Sep 18, 2026 |
| AD21 | R&D- Defense Other: Services (Basic Research)Federal contract product or service | $14.83B | 65,540 | 48 | 158 | Sep 18, 2026 |
| Q301 | Reference Laboratory TestingFederal contract product or service | $14.78B | 143,621 | 49 | 141 | Oct 15, 2026 |
| M151 | Operation Of Ammunition FacilitiesFederal contract product or service | $14.67B | 9,883 | 43 | 6 | Mar 22, 2023 |
| 1925 | Special Service VesselsFederal contract product or service | $14.65B | 4,841 | 48 | 44 | Sep 21, 2026 |
| AD25 | R&D- Defense Other: Services (Operational Systems Development)Federal contract product or service | $14.59B | 47,367 | 48 | 133 | Aug 26, 2026 |
| 1990 | Miscellaneous VesselsFederal contract product or service | $14.26B | 9,413 | 48 | 57 | Sep 30, 2026 |
| 5985 | Antennas, Waveguides, And Related EquipmentFederal contract product or service | $14.26B | 131,052 | 49 | 106 | Oct 15, 2026 |
| Y1DA | Construction Of Hospitals And InfirmariesFederal contract product or service | $14.24B | 21,549 | 16 | 9 | Oct 15, 2026 |
| AZ16 | R&D- Other Research And Development (Management/Support)Federal contract product or service | $14.15B | 18,081 | 48 | 88 | Sep 14, 2026 |
| Q503 | Medical- DentistryFederal contract product or service | $13.97B | 42,202 | 49 | 41 | Oct 15, 2026 |
| 5805 | Telephone And Telegraph EquipmentFederal contract product or service | $13.89B | 154,930 | 49 | 233 | Oct 13, 2026 |
| AC21 | National Defense R&D Services; Atomic Energy Defense Activities; Basic ResearchFederal contract product or service | $13.75B | 24,366 | 48 | 14 | Sep 28, 2026 |
| Y141 | Construct/Hospitals & InfirmariesFederal contract product or service | $13.67B | 26,649 | 48 | 30 | Jul 6, 2026 |
| AJ11 | General Science And Technology R&D Services; General Science And Technology; Basic ResearchFederal contract product or service | $13.50B | 68,094 | 49 | 84 | Oct 15, 2026 |
| Y161 | Construct/Family HousingFederal contract product or service | $13.47B | 18,735 | 45 | 52 | Aug 11, 2023 |
| S205 | Housekeeping- Trash/Garbage CollectionFederal contract product or service | $13.38B | 182,029 | 49 | 140 | Oct 15, 2026 |
| S111 | Utilities- GasFederal contract product or service | $13.38B | 103,775 | 50 | 114 | Oct 15, 2026 |
| R704 | Support- Management: AuditingFederal contract product or service | $13.36B | 47,906 | 46 | 225 | Oct 15, 2026 |
| R410 | Support- Professional: Program Evaluation/Review/DevelopmentFederal contract product or service | $13.34B | 43,802 | 16 | 154 | Oct 15, 2026 |
| 5825 | Radio Navigation Equipment, Except AirborneFederal contract product or service | $13.18B | 20,609 | 49 | 108 | Oct 9, 2026 |
| 8970 | Composite Food PackagesFederal contract product or service | $13.13B | 73,103 | 49 | 73 | Oct 7, 2026 |
| D310 | It And Telecom- Cyber Security And Data BackupFederal contract product or service | $13.12B | 27,625 | 39 | 188 | Sep 25, 2026 |
| AR92 | R&D- Space: Other (Applied Research/Exploratory Development)Federal contract product or service | $13.08B | 3,216 | 48 | 9 | Sep 29, 2026 |
| K015 | Modification Of Equipment- Aircraft And Airframe Structural ComponentsFederal contract product or service | $12.91B | 14,093 | 49 | 21 | Oct 14, 2026 |
| AN13 | Health R&D Services; Health Care Services; Experimental DevelopmentFederal contract product or service | $12.81B | 6,393 | 46 | 29 | Oct 15, 2026 |
| B541 | Special Studies/Analysis- DefenseFederal contract product or service | $12.77B | 25,543 | 44 | 40 | Oct 15, 2026 |
| R608 | Support- Administrative: Translation And InterpretingFederal contract product or service | $12.73B | 269,668 | 45 | 191 | Oct 15, 2026 |
| 2530 | Vehicular Brake, Steering, Axle, Wheel, And Track ComponentsFederal contract product or service | $12.70B | 137,436 | 48 | 61 | Sep 9, 2026 |
| 2330 | TrailersFederal contract product or service | $12.68B | 37,799 | 49 | 115 | Oct 15, 2026 |
| 6115 | Generators And Generator Sets, ElectricalFederal contract product or service | $12.56B | 61,283 | 49 | 130 | Oct 14, 2026 |
| DG01 | It And Telecom - Network Support Services (Labor)Federal contract product or service | $12.53B | 16,227 | 7 | 118 | Oct 15, 2026 |
| 7E20 | It And Telecom - End User: Help Desk;Tier 1-2,Workspace,Print,Output,Productivity Tools (Hw/Perp Sw)Federal contract product or service | $12.50B | 81,285 | 7 | 147 | Oct 15, 2026 |
| 1230 | Fire Control Systems, CompleteFederal contract product or service | $12.48B | 7,309 | 48 | 70 | Sep 29, 2026 |
| Y1BZ | Construction Of Other Airfield StructuresFederal contract product or service | $12.46B | 7,861 | 16 | 18 | Oct 14, 2026 |
| Z1DA | Maintenance Of Hospitals And InfirmariesFederal contract product or service | $12.29B | 33,002 | 16 | 18 | Oct 15, 2026 |
| R418 | Support- Professional: LegalFederal contract product or service | $12.25B | 194,464 | 45 | 204 | Oct 15, 2026 |
Reading PSC Data
How to evaluate a federal market by PSC
PSC identifies the contractor product or service associated with an award action. Read obligations together with action frequency, active fiscal years, customer breadth, and recent activity before treating a classification as an addressable market.
Follow the customers
Federal customer count shows whether demand is concentrated in a narrow buyer set or distributed across government.
Validate current relevance
Latest activity helps separate active federal markets from classifications that primarily describe older contract history.