Agency + PSC NAICS rankings

Top NAICS paths for PSC F999 under Department of Homeland Security.

Use this ranking when the research starts with Department of Homeland Security and PSC F999, 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 F999

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 562910

5 visible recipients · Remediation Services

$2,525,192,833
2

NAICS 236220

3 visible recipients · Commercial and Institutional Building Construction

$1,585,996,881
3

NAICS 541330

6 visible recipients · Engineering Services

$1,355,041,272
4

NAICS 237120

2 visible recipients · Oil and Gas Pipeline and Related Structures Construction

$891,096,004
5

NAICS 561210

1 visible recipients · Facilities Support Services

$464,639,182
6

NAICS 541360

1 visible recipients · Geophysical Surveying and Mapping Services

$285,221,577
7

NAICS 541620

6 visible recipients · Environmental Consulting Services

$278,994,357
8

NAICS 541370

2 visible recipients · Surveying and Mapping (except Geophysical) Services

$221,813,700
9

NAICS 541690

1 visible recipients · Other Scientific and Technical Consulting Services

$188,201,905
10

NAICS 336611

1 visible recipients · Ship Building and Repairing

$133,766,996
11

NAICS 561612

1 visible recipients · Security Guards and Patrol Services

$81,358,178
12

NAICS 541712

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

$59,158,480
13

NAICS 541922

1 visible recipients · Commercial Photography

$19,470,996
14

NAICS 541715

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

$19,163,601
15

NAICS 541710

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

$10,372,888
16

NAICS 561720

1 visible recipients · Janitorial Services

$8,555,103
17

NAICS 237110

1 visible recipients · Water and Sewer Line and Related Structures Construction

$1,273,822
18

NAICS 541990

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

$737,962
19

NAICS 541350

1 visible recipients · Building Inspection Services

$4,979
20

NAICS 541310

1 visible recipients · Architectural Services

-$57,077

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