Professional, Scientific, and Technical Services: federal contract awards by NAICS code

Federal agencies obligated $225.2 billion on contracts coded to sector 54 from July 1, 2025 to June 30, 2026. The largest code was 541330 Engineering Services at $54.5 billion. 40 codes have a page.

541 Professional, Scientific, and Technical Services

Codes in subsector 541, largest obligations first (Jul 2025 to Jun 2026)
Code	Industry	Obligations	New awards	Median new award	Small-business share
541330	Engineering Services	$54.5 billion	8,401	$342,168	23%
541715	Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$52.5 billion	8,358	$174,220	22%
541512	Computer Systems Design Services	$33.4 billion	7,524	$35,953	24%
541519	Other Computer Related Services	$25.9 billion	22,159	$60,758	69%
541990	All Other Professional, Scientific, and Technical Services	$12.6 billion	3,430	$99,974	19%
541511	Custom Computer Programming Services	$12.0 billion	2,217	$282,154	48%
541611	Administrative Management and General Management Consulting Services	$11.2 billion	3,839	$248,710	48%
541614	Process, Physical Distribution, and Logistics Consulting Services	$4.4 billion	1,496	$77,612	40%
541513	Computer Facilities Management Services	$3.4 billion	488	$335,621	46%
541714	Research and Development in Biotechnology (except Nanobiotechnology)	$2.1 billion	356	$154,017	36%
541690	Other Scientific and Technical Consulting Services	$1.8 billion	1,118	$84,435	32%
541810	Advertising Agencies	$1.2 billion	197	$191,990	8%
541620	Environmental Consulting Services	$1.1 billion	1,743	$105,406	69%
541211	Offices of Certified Public Accountants	$945.8 million	230	$233,280	9%
541219	Other Accounting Services	$881.7 million	124	$301,500	29%
541612	Human Resources Consulting Services	$841.0 million	248	$154,032	52%
541720	Research and Development in the Social Sciences and Humanities	$789.6 million	373	$250,000	10%
541310	Architectural Services	$704.2 million	891	$187,386	37%
541380	Testing Laboratories and Services	$605.9 million	1,935	$22,680	18%
541199	All Other Legal Services	$505.0 million	1,376	$23,641	7%
541370	Surveying and Mapping (except Geophysical) Services	$457.7 million	624	$108,010	28%
541930	Translation and Interpretation Services	$439.3 million	4,198	$7,106	30%
541713	Research and Development in Nanotechnology	$392.8 million	249	$849,444	73%
541110	Offices of Lawyers	$366.0 million	331	$15,500	15%
541618	Other Management Consulting Services	$319.3 million	247	$68,782	38%
541320	Landscape Architectural Services	$297.5 million	93	$747,686	17%
541613	Marketing Consulting Services	$289.9 million	92	$143,370	52%
541910	Marketing Research and Public Opinion Polling	$217.2 million	150	$139,788	40%
541191	Title Abstract and Settlement Offices	$190.3 million	138	$32,065	7%
541820	Public Relations Agencies	$161.0 million	62	$130,248	99%
541360	Geophysical Surveying and Mapping Services	$141.0 million	153	$186,720	11%
541940	Veterinary Services	$137.5 million	442	$18,076	57%
541350	Building Inspection Services	$99.1 million	278	$25,000	23%
541430	Graphic Design Services	$31.9 million	88	$34,055	83%
541890	Other Services Related to Advertising	$29.1 million	114	$44,387	29%
541410	Interior Design Services	$26.4 million	148	$56,354	98%
541214	Payroll Services	$20.1 million	14	$43,092	45%
541850	Indoor and Outdoor Display Advertising	$6.9 million	68	$32,933	65%
541490	Other Specialized Design Services	$6.1 million	17	$33,370	94%
541922	Commercial Photography	$2.4 million	23	$34,680	79%

No page for 9 other codes in this sector, each with less than $1 million in obligations or fewer than 10 new awards in the window: 541120 Offices of Notaries, 541213 Tax Preparation Services, 541340 Drafting Services, 541420 Industrial Design Services, 541830 Media Buying Agencies, 541840 Media Representatives, 541860 Direct Mail Advertising, 541870 Advertising Material Distribution Services, 541921 Photography Studios, Portrait.

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Obligations and awards: USAspending.gov, contract award types A to D, July 1, 2025 to June 30, 2026, retrieved September 29, 2026. Definitions.