NAICS Sector 54

Professional, Scientific, and Technical Services Federal Contracts

Federal awards across the Professional, Scientific, and Technical Services sector, aggregated from 147,092 contract actions and 50 detailed NAICS codes. Explore spending, the agencies that buy, and the NAICS codes inside this sector.

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Contract actions

147,092

13,176 unique vendors

Total obligated

$220.5B

all years on record

NAICS codes

in this sector

Open opportunities

357

active solicitations

NAICS codes in Professional, Scientific, and Technical Services

Engineering Services (541330)31,723 Other Computer Related Services (541519)22,860 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) (541715)22,279 Computer Systems Design Services (541512)12,932 Administrative Management and General Management Consulting Services (541611)10,928 Custom Computer Programming Services (541511)7,112 All Other Professional, Scientific, and Technical Services (541990)6,785 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) (541712)4,033 Environmental Consulting Services (541620)3,658 Other Scientific and Technical Consulting Services (541690)3,189 NAICS 541930 (541930)3,058 All Other Legal Services (541199)2,495 NAICS 541380 (541380)2,475 Computer Facilities Management Services (541513)2,068 NAICS 541310 (541310)1,848 Process, Physical Distribution, and Logistics Consulting Services (541614)1,577 Research and Development in Biotechnology (except Nanobiotechnology) (541714)949 Research and Development in the Social Sciences and Humanities (541720)711 Surveying and Mapping (except Geophysical) Services (541370)675 NAICS 541211 (541211)662 Other Accounting Services (541219)587 NAICS 541940 (541940)555 Human Resources Consulting Services (541612)544 Other Management Consulting Services (541618)465 Research and Development in the Physical, Engineering, and Life Sciences (541710)405 Advertising Agencies (541810)335 NAICS 541110 (541110)322 NAICS 541350 (541350)248 Marketing Consulting Services (541613)202 Marketing Research and Public Opinion Polling (541910)194 Geophysical Surveying and Mapping Services (541360)191 NAICS 541430 (541430)160 NAICS 541410 (541410)134 Research and Development in Nanotechnology (541713)112 NAICS 541191 (541191)100 NAICS 541820 (541820)98 Research and Development in Biotechnology (541711)93 Other Services Related to Advertising (541890)87 NAICS 541320 (541320)67 Indoor and Outdoor Display Advertising (541850)56

Top agencies buying in this sector

Department of Defense68,501 awards

Department of Health and Human Services9,541 awards

National Aeronautics and Space Administration7,787 awards

Department of Justice7,610 awards

Department of Transportation7,279 awards

Department of Veterans Affairs5,694 awards

General Services Administration5,656 awards

Department of Homeland Security4,886 awards

Department of State4,085 awards

Department of the Interior3,745 awards

Department of Energy3,381 awards

Department of Commerce3,315 awards

Small business set-asides in Professional, Scientific, and Technical Services

8(a) Business Development$7.9B · 7,631 awards

Small Business$1.1B · 1,731 awards

Service-Disabled Veteran-Owned$706.5M · 946 awards

HUBZone$322.2M · 594 awards

Other Set-Aside$343.3M · 257 awards

Women-Owned Small Business$238.3M · 84 awards

Veteran-Owned Small Business$5.6M · 46 awards

Indian / Tribal$49.4M · 33 awards

Spending by fiscal year

FY 2026$58.7B · 32,509 awards

FY 2025$147.3B · 103,325 awards

FY 2024$14.5B · 11,258 awards

About federal contracting in Professional, Scientific, and Technical Services

The Professional, Scientific, and Technical Services sector spans 50 NAICS codes and 147,092 recorded contract actions worth $220.5B, an average of $1.5M per award. In FY2026, agencies obligated $58.7B across 32,509 actions in this sector. About 8% of awards went to small businesses through programs such as 8(a) Business Development, Small Business, Service-Disabled Veteran-Owned. The most active buyer is Department of Defense. Browse the NAICS codes above to drill into a specific industry, or see open Professional, Scientific, and Technical Services solicitations.

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