Agency + PSC NAICS rankings

Top NAICS paths for PSC R799 under Department of Homeland Security.

Use this ranking when the research starts with Department of Homeland Security and PSC R799, and you want the strongest industry-code pages inside that exact buyer + service slice.

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Agency + service NAICS rankings

Top NAICS paths inside Department of Homeland Security + PSC R799

Use these rankings when the buyer-specific PSC page is still too broad and you want the most relevant NAICS pivots inside the same slice.

1

NAICS 541330

19 visible recipients · Engineering Services

$15,816,917,447
2

NAICS 541512

13 visible recipients · Computer Systems Design Services

$15,210,904,926
3

NAICS 541611

21 visible recipients · Administrative Management and General Management Consulting Services

$11,618,180,073
4

NAICS 541519

18 visible recipients · Other Computer Related Services

$4,427,448,391
5

NAICS 561611

2 visible recipients · Investigation and Personal Background Check Services

$3,994,626,019
6

NAICS 488190

1 visible recipients · Other Support Activities for Air Transportation

$3,220,716,360
7

NAICS 541511

12 visible recipients · Custom Computer Programming Services

$1,856,219,257
8

NAICS 561612

5 visible recipients · Security Guards and Patrol Services

$1,683,934,600
9

NAICS 541990

14 visible recipients · All Other Professional, Scientific, and Technical Services

$1,681,154,498
10

NAICS 336411

1 visible recipients · Aircraft Manufacturing

$1,504,582,348
11

NAICS 541715

9 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)

$1,348,738,389
12

NAICS 561210

7 visible recipients · Facilities Support Services

$1,063,845,669
13

NAICS 541712

3 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)

$786,539,663
14

NAICS 541219

3 visible recipients · Other Accounting Services

$725,161,393
15

NAICS 236220

1 visible recipients · Commercial and Institutional Building Construction

$506,373,416
16

NAICS 561110

4 visible recipients · Office Administrative Services

$408,562,508
17

NAICS 561499

1 visible recipients · All Other Business Support Services

$381,246,156
18

NAICS 541690

6 visible recipients · Other Scientific and Technical Consulting Services

$241,060,333
19

NAICS 491110

1 visible recipients · Postal Service

$206,642,761
20

NAICS 518210

3 visible recipients · Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

$201,997,051
21

NAICS 541513

3 visible recipients · Computer Facilities Management Services

$172,123,507
22

NAICS 722310

1 visible recipients · Food Service Contractors

$146,219,989
23

NAICS 541612

3 visible recipients · Human Resources Consulting Services

$113,595,423
24

NAICS 561720

1 visible recipients · Janitorial Services

$103,213,603
25

NAICS 541618

1 visible recipients · Other Management Consulting Services

$84,402,060
26

NAICS 511210

1 visible recipients · Software Publishers

$74,790,961
27

NAICS 519120

1 visible recipients · Libraries and Archives

$61,342,241
28

NAICS 561320

1 visible recipients · Temporary Help Services

$50,267,586
29

NAICS 541211

1 visible recipients · Offices of Certified Public Accountants

$45,915,086
30

NAICS 621999

1 visible recipients · All Other Miscellaneous Ambulatory Health Care Services

$40,281,433
31

NAICS 236210

1 visible recipients · Industrial Building Construction

$27,666,648
32

NAICS 336415

1 visible recipients · Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing

$25,704,158
33

NAICS 611692

1 visible recipients · Automobile Driving Schools

$25,181,872
34

NAICS 561621

1 visible recipients · Security Systems Services (except Locksmiths)

$22,637,972
35

NAICS 488310

1 visible recipients · Port and Harbor Operations

$19,762,768
36

NAICS 511130

1 visible recipients · Book Publishers

$12,634,804
37

NAICS 336413

1 visible recipients · Other Aircraft Parts and Auxiliary Equipment Manufacturing

$10,673,659
38

NAICS 541710

1 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences

$9,994,061
39

NAICS 813110

1 visible recipients · Religious Organizations

$4,109,888
40

NAICS 611710

1 visible recipients · Educational Support Services

$3,580,934
41

NAICS 493110

1 visible recipients · General Warehousing and Storage

$3,032,695
42

NAICS 512110

1 visible recipients · Motion Picture and Video Production

$2,657,423
43

NAICS 541430

1 visible recipients · Graphic Design Services

$654,287
44

NAICS 922130

1 visible recipients · Legal Counsel and Prosecution

$39,927
45

NAICS 517110

1 visible recipients · Wired Telecommunications Carriers

$0

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