Agency + PSC NAICS rankings

Top NAICS paths for PSC R408 under Department of Homeland Security.

Use this ranking when the research starts with Department of Homeland Security and PSC R408, 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 R408

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 541512

51 visible recipients · Computer Systems Design Services

$69,219,833,343
2

NAICS 541330

48 visible recipients · Engineering Services

$60,207,855,091
3

NAICS 541611

69 visible recipients · Administrative Management and General Management Consulting Services

$27,691,724,235
4

NAICS 561210

10 visible recipients · Facilities Support Services

$15,471,534,846
5

NAICS 541712

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

$14,987,661,461
6

NAICS 541519

41 visible recipients · Other Computer Related Services

$10,226,362,048
7

NAICS 541513

11 visible recipients · Computer Facilities Management Services

$9,665,187,853
8

NAICS 541511

30 visible recipients · Custom Computer Programming Services

$8,356,673,762
9

NAICS 488190

1 visible recipients · Other Support Activities for Air Transportation

$8,097,082,835
10

NAICS 517110

1 visible recipients · Wired Telecommunications Carriers

$4,627,902,867
11

NAICS 541990

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

$3,383,621,612
12

NAICS 336411

1 visible recipients · Aircraft Manufacturing

$2,977,033,519
13

NAICS 541715

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

$1,481,013,320
14

NAICS 541710

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

$1,085,164,384
15

NAICS 541219

7 visible recipients · Other Accounting Services

$884,734,622
16

NAICS 524114

1 visible recipients · Direct Health and Medical Insurance Carriers

$862,054,427
17

NAICS 541612

6 visible recipients · Human Resources Consulting Services

$754,486,652
18

NAICS 561621

2 visible recipients · Security Systems Services (except Locksmiths)

$699,605,178
19

NAICS 561612

2 visible recipients · Security Guards and Patrol Services

$643,906,963
20

NAICS 541614

3 visible recipients · Process, Physical Distribution, and Logistics Consulting Services

$598,457,058
21

NAICS 541211

4 visible recipients · Offices of Certified Public Accountants

$558,411,729
22

NAICS 524292

1 visible recipients · Pharmacy Benefit Management and Other Third Party Administration of Insurance and Pension Funds

$508,081,723
23

NAICS 541620

6 visible recipients · Environmental Consulting Services

$414,068,597
24

NAICS 611519

2 visible recipients · Other Technical and Trade Schools

$403,324,154
25

NAICS 611430

4 visible recipients · Professional and Management Development Training

$382,717,370
26

NAICS 541690

12 visible recipients · Other Scientific and Technical Consulting Services

$369,522,935
27

NAICS 518210

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

$341,368,024
28

NAICS 561110

8 visible recipients · Office Administrative Services

$271,063,433
29

NAICS 333244

1 visible recipients · Printing Machinery and Equipment Manufacturing

$190,117,907
30

NAICS 541310

3 visible recipients · Architectural Services

$167,326,265
31

NAICS 511199

1 visible recipients · All Other Publishers

$82,346,950
32

NAICS 561320

3 visible recipients · Temporary Help Services

$76,928,006
33

NAICS 511210

4 visible recipients · Software Publishers

$73,051,021
34

NAICS 811219

2 visible recipients · Other Electronic and Precision Equipment Repair and Maintenance

$68,563,866
35

NAICS 541613

1 visible recipients · Marketing Consulting Services

$61,287,878
36

NAICS 541720

1 visible recipients · Research and Development in the Social Sciences and Humanities

$54,333,290
37

NAICS 334119

1 visible recipients · Other Computer Peripheral Equipment Manufacturing

$51,025,817
38

NAICS 541810

1 visible recipients · Advertising Agencies

$49,900,054
39

NAICS 236220

3 visible recipients · Commercial and Institutional Building Construction

$35,222,372
40

NAICS 541618

5 visible recipients · Other Management Consulting Services

$32,262,060
41

NAICS 333298

1 visible recipients · All Other Industrial Machinery Manufacturing

$31,404,060
42

NAICS 541714

4 visible recipients · Research and Development in Biotechnology (except Nanobiotechnology)

$25,164,128
43

NAICS 611420

1 visible recipients · Computer Training

$24,775,313
44

NAICS 522320

1 visible recipients · Financial Transactions Processing, Reserve, and Clearinghouse Activities

$21,551,537
45

NAICS 488310

1 visible recipients · Port and Harbor Operations

$19,762,768
46

NAICS 493110

1 visible recipients · General Warehousing and Storage

$17,945,912
47

NAICS 334290

1 visible recipients · Other Communications Equipment Manufacturing

$17,792,495
48

NAICS 562910

2 visible recipients · Remediation Services

$17,619,662
49

NAICS 561611

1 visible recipients · Investigation and Personal Background Check Services

$16,618,619
50

NAICS 334220

1 visible recipients · Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

$16,131,617

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