NAICS Sector 54: Professional, Scientific, and Technical Services
Sector
Definition
The Professional, Scientific, and Technical Services sector comprises establishments that specialize in performing professional, scientific, and technical activities for others. These activities require a high degree of expertise and training. The establishments in this sector specialize according to expertise and provide these services to clients in a variety of industries and, in some cases, to households.
Activities performed include: legal advice and representation; accounting, bookkeeping, and payroll services; architectural, engineering, and specialized design services; computer services; consulting services; research services; advertising services; photographic services; translation and interpretation services; veterinary services; and other professional, scientific, and technical services.
Read the full definition
This sector excludes establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning, billing and recordkeeping, personnel supply, and physical distribution and logistics. These establishments are classified in Sector 56, Administrative and Support and Waste Management and Remediation Services.
Code facts
- Codes under it
- 1
- Contract awards
- 56,065 In the last 12 months
- Contract obligations
- $221,627,380,724 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $2,822,392,793 |
| FY2026 | $207,943,551,997 |
| FY2025 | $221,627,380,724 |
| FY2024 | $234,728,703,588 |
| FY2023 | $229,609,832,202 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Electric Boat Corporation | $7,642,201,622 | |
| 2 | Booz Allen Hamilton Inc. | $6,027,852,870 | |
| 3 | General Dynamics Information Technology, Inc. | $4,104,150,542 | |
| 4 | Science Applications International Corporation | $3,633,096,138 | |
| 5 | Fluor Marine Propulsion, LLC | $3,594,734,943 | |
| 6 | Accenture Federal Services LLC | $3,478,572,722 | |
| 7 | Deloitte Consulting LLP | $3,202,060,792 | |
| 8 | Caci, Inc. - Federal | $3,035,811,436 | |
| 9 | Battelle Energy Alliance, LLC | $2,497,188,747 | |
| 10 | The Johns Hopkins University Applied Physics Laboratory LLC | $2,307,750,125 |
See the full FY2025 ranking of NAICS 54 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $36,209,318,204 | |
| 2 | Air Force | $31,784,764,670 | |
| 3 | Department of the Army | $23,883,561,831 | |
| 4 | Department of Health and Human Services | $17,077,393,347 | |
| 5 | Department of Homeland Security | $15,163,151,256 | |
| 6 | Department of Energy | $11,152,655,951 | |
| 7 | Department of Veterans Affairs | $10,975,127,521 | |
| 8 | National Aeronautics and Space Administration | $8,228,701,584 | |
| 9 | Office of the Secretary of Defense | $6,201,317,019 | |
| 10 | Missile Defense Agency | $5,952,609,225 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | R425 Engineering and Technical Services | $23,096,786,257 | |
| 2 |
DA01 IT and Telecom – Business Application/ |
$20,266,532,886 | |
| 3 | R499 Other Professional Services | $19,294,527,356 | |
| 4 | 1905 Combat Ships and Landing Vessels | $7,679,849,176 | |
| 5 |
R408 Program Management/ |
$7,649,200,599 | |
| 6 | AC13 National Defense R&D Services; Department of Defense – Military; Experimental Development | $7,449,627,784 | |
| 7 |
DA10 IT and Telecom – Business Application/ |
$6,959,222,367 | |
| 8 | AC32 National Defense R&D Services; Defense-Related Activities; Applied Research | $6,573,536,550 | |
| 9 | DF01 IT and Telecom – IT Management Support Services (Labor) | $4,785,264,094 | |
| 10 | R706 Logistics Support Services | $4,777,934,012 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Virginia | $53,912,941,675 | |
| 2 | Maryland | $22,623,912,058 | |
| 3 | California | $17,257,064,290 | |
| 4 | District of Columbia | $16,933,978,222 | |
| 5 | Alabama | $8,213,441,389 | |
| 6 | Texas | $8,145,674,601 | |
| 7 | Connecticut | $8,087,292,049 | |
| 8 | Colorado | $6,569,918,552 | |
| 9 | Massachusetts | $6,450,167,948 | |
| 10 | Pennsylvania | $5,864,516,903 | |
| 11 | Florida | $5,771,554,422 | |
| 12 | New Jersey | $4,463,514,648 | |
| 13 | Arizona | $3,809,962,110 | |
| 14 | New York | $3,177,429,171 | |
| 15 | Ohio | $2,949,844,152 | |
| 16 | Georgia | $2,817,990,339 | |
| 17 | Idaho | $2,591,146,126 | |
| 18 | Illinois | $2,353,524,843 | |
| 19 | Kansas | $2,165,469,869 | |
| 20 | North Carolina | $2,007,491,637 | |
| 21 | South Carolina | $1,770,828,726 | |
| 22 | Tennessee | $1,270,532,872 | |
| 23 | Indiana | $1,081,636,616 | |
| 24 | Utah | $1,055,410,211 | |
| 25 | Missouri | $1,049,470,405 | |
| 26 | Oklahoma | $994,577,971 | |
| 27 | Hawaii | $982,588,563 | |
| 28 | New Mexico | $924,971,084 | |
| 29 | West Virginia | $776,631,149 | |
| 30 | Nevada | $759,480,113 | |
| 31 | Alaska | $689,316,503 | |
| 32 | Washington | $676,019,240 | |
| 33 | Michigan | $656,814,411 | |
| 34 | Nebraska | $561,889,469 | |
| 35 | Rhode Island | $490,960,645 | |
| 36 | Mississippi | $469,528,013 | |
| 37 | Kentucky | $361,209,918 | |
| 38 | Minnesota | $321,076,226 | |
| 39 | Louisiana | $309,525,843 | |
| 40 | New Hampshire | $264,903,071 | |
| 41 | Iowa | $257,007,334 | |
| 42 | Oregon | $193,724,110 | |
| 43 | Vermont | $185,015,910 | |
| 44 | South Dakota | $154,802,087 | |
| 45 | Montana | $151,160,011 | |
| 46 | Arkansas | $126,562,497 | |
| 47 | Guam | $125,333,368 | |
| 48 | Wisconsin | $106,655,261 | |
| 49 | North Dakota | $103,603,779 | |
| 50 | Delaware | $98,007,973 | |
| 51 | Maine | $77,602,341 | |
| 52 | Puerto Rico | $73,306,522 | |
| 53 | Wyoming | $51,827,012 | |
| 54 | American Samoa | $20,992,738 | |
| 55 | Northern Mariana Islands | $9,949,556 | |
| 56 | U.S. Virgin Islands | $3,954,899 |
Show all 56
Shares are of everything obligated under NAICS 54 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 39 more
Latest 49 of 333,760 listed here. See the rest on GovTribe.
Codes under 54
Quick answers
What is NAICS 54?
NAICS 54 is Professional, Scientific, and Technical Services, a sector of the North American Industry Classification System.
What codes are under NAICS 54?
NAICS 54 has one code under it with its own GovTribe page, 541 Professional, Scientific, and Technical Services.
How much do federal agencies spend under NAICS 54?
Federal contracts under NAICS 54 obligated $221,627,380,724 in fiscal year 2025 and $896,731,861,305 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 54?
The contractors with the most obligated under NAICS 54 in fiscal years 2026 and 2027 are Electric Boat Corporation ($7,642,201,622); Booz Allen Hamilton Inc. ($6,027,852,870); and General Dynamics Information Technology, Inc. ($4,104,150,542).
Which agencies buy the most under NAICS 54?
The agencies that obligated the most under NAICS 54 in fiscal years 2026 and 2027 are Department of the Navy ($36,209,318,204), Air Force ($31,784,764,670) and Department of the Army ($23,883,561,831).
Which PSC codes are used with NAICS 54?
The PSC codes with the most obligated under NAICS 54 in fiscal years 2026 and 2027 are R425 Engineering and Technical Services, DA01 IT and Telecom – Business Application/
Where is the work under NAICS 54 performed?
By place of performance, the states with the most contract obligations under NAICS 54 over the last 12 months are Virginia ($53,912,941,675), Maryland ($22,623,912,058) and California ($17,257,064,290).
What is the latest contract opportunity under NAICS 54?
The latest contract opportunity under NAICS 54 is Solicitation number 393274 “hanford tank farms vadose geophysical logging”, pre-solicitation, posted November 11, 2026.
On GovTribe
See everything under NAICS 54
- Federal contract opportunities, awards and IDVs under this code
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