State + PSC NAICS rankings

Top NAICS paths for PSC R408 in District of Columbia.

Use this ranking when the research starts with District of Columbia and PSC R408, and you want the strongest industry-code pages inside that exact geography + service slice.

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State + service NAICS rankings

Top NAICS paths inside District of Columbia + PSC R408

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

1

NAICS 541611

6 visible recipients · Administrative Management and General Management Consulting Services

$806,179,531
2

NAICS 541512

1 visible recipients · Computer Systems Design Services

$604,008,453
3

NAICS 541219

1 visible recipients · Other Accounting Services

$158,116,461
4

NAICS 541519

3 visible recipients · Other Computer Related Services

$120,203,318
5

NAICS 541330

1 visible recipients · Engineering Services

$81,925,792
6

NAICS 541350

1 visible recipients · Building Inspection Services

$79,539,497
7

NAICS 541612

1 visible recipients · Human Resources Consulting Services

$54,145,485
8

NAICS 541990

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

$35,123,691
9

NAICS 518210

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

$30,766,020
10

NAICS 561110

1 visible recipients · Office Administrative Services

$11,623,632
11

NAICS 541511

1 visible recipients · Custom Computer Programming Services

$10,420,480
12

NAICS 561210

1 visible recipients · Facilities Support Services

$8,402,678
13

NAICS 541380

1 visible recipients · Testing Laboratories and Services

$7,368,833
14

NAICS 611430

2 visible recipients · Professional and Management Development Training

$5,124,861
15

NAICS 541690

2 visible recipients · Other Scientific and Technical Consulting Services

$4,893,465
16

NAICS 561920

1 visible recipients · Convention and Trade Show Organizers

$4,516,828
17

NAICS 611699

1 visible recipients · All Other Miscellaneous Schools and Instruction

$3,961,046
18

NAICS 541715

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

$1,860,550
19

NAICS 541613

1 visible recipients · Marketing Consulting Services

$245,000
20

NAICS 523930

1 visible recipients · Investment Advice

$95,954

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