Agency + PSC NAICS rankings

Top NAICS paths for PSC R499 under Department of Transportation.

Use this ranking when the research starts with Department of Transportation and PSC R499, 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 Transportation + PSC R499

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 336411

3 visible recipients · Aircraft Manufacturing

$254,792,719,754
2

NAICS 541330

37 visible recipients · Engineering Services

$77,409,957,554
3

NAICS 541512

26 visible recipients · Computer Systems Design Services

$49,722,473,270
4

NAICS 541712

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

$37,900,391,091
5

NAICS 336413

3 visible recipients · Other Aircraft Parts and Auxiliary Equipment Manufacturing

$33,895,078,839
6

NAICS 336414

1 visible recipients · Guided Missile and Space Vehicle Manufacturing

$30,520,665,865
7

NAICS 541519

28 visible recipients · Other Computer Related Services

$11,356,910,262
8

NAICS 541611

38 visible recipients · Administrative Management and General Management Consulting Services

$8,733,835,973
9

NAICS 541513

11 visible recipients · Computer Facilities Management Services

$7,115,580,777
10

NAICS 541715

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

$6,667,974,013
11

NAICS 541710

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

$4,999,108,868
12

NAICS 334290

2 visible recipients · Other Communications Equipment Manufacturing

$3,660,935,854
13

NAICS 541511

16 visible recipients · Custom Computer Programming Services

$2,920,971,631
14

NAICS 236210

1 visible recipients · Industrial Building Construction

$2,520,010,651
15

NAICS 488190

5 visible recipients · Other Support Activities for Air Transportation

$2,213,398,734
16

NAICS 541614

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

$2,088,958,358
17

NAICS 517110

5 visible recipients · Wired Telecommunications Carriers

$2,085,050,197
18

NAICS 541720

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

$1,873,443,297
19

NAICS 541990

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

$1,453,217,649
20

NAICS 561210

7 visible recipients · Facilities Support Services

$1,290,038,383
21

NAICS 517919

2 visible recipients · All Other Telecommunications

$1,031,158,203
22

NAICS 541612

7 visible recipients · Human Resources Consulting Services

$877,634,932
23

NAICS 561621

2 visible recipients · Security Systems Services (except Locksmiths)

$654,647,170
24

NAICS 561612

2 visible recipients · Security Guards and Patrol Services

$608,552,478
25

NAICS 518210

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

$569,750,346
26

NAICS 541219

3 visible recipients · Other Accounting Services

$517,530,690
27

NAICS 517410

2 visible recipients · Satellite Telecommunications

$500,779,666
28

NAICS 541310

5 visible recipients · Architectural Services

$431,052,405
29

NAICS 488111

1 visible recipients · Air Traffic Control

$363,015,696
30

NAICS 562910

5 visible recipients · Remediation Services

$360,501,262
31

NAICS 561110

7 visible recipients · Office Administrative Services

$325,182,504
32

NAICS 541620

7 visible recipients · Environmental Consulting Services

$323,684,402
33

NAICS 541613

4 visible recipients · Marketing Consulting Services

$248,362,239
34

NAICS 611519

2 visible recipients · Other Technical and Trade Schools

$244,694,141
35

NAICS 561499

1 visible recipients · All Other Business Support Services

$203,667,348
36

NAICS 237990

3 visible recipients · Other Heavy and Civil Engineering Construction

$146,998,445
37

NAICS 541690

5 visible recipients · Other Scientific and Technical Consulting Services

$94,744,421
38

NAICS 541370

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

$76,483,287
39

NAICS 524298

1 visible recipients · All Other Insurance Related Activities

$68,756,909
40

NAICS 517311

2 visible recipients · Wired Telecommunications Carriers

$47,213,666
41

NAICS 336111

1 visible recipients · Automobile Manufacturing

$40,982,739
42

NAICS 541320

1 visible recipients · Landscape Architectural Services

$40,218,809
43

NAICS 541820

1 visible recipients · Public Relations Agencies

$37,976,112
44

NAICS 511130

1 visible recipients · Book Publishers

$37,947,977
45

NAICS 561320

3 visible recipients · Temporary Help Services

$23,721,842
46

NAICS 522320

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

$21,551,537
47

NAICS 621399

1 visible recipients · Offices of All Other Miscellaneous Health Practitioners

$19,134,287
48

NAICS 236220

2 visible recipients · Commercial and Institutional Building Construction

$18,707,359
49

NAICS 541618

3 visible recipients · Other Management Consulting Services

$16,878,187
50

NAICS 237130

1 visible recipients · Power and Communication Line and Related Structures Construction

$14,402,503

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