Agency + PSC NAICS rankings
Top NAICS paths for PSC D399 under Department of State.
Use this ranking when the research starts with Department of State and PSC D399, and you want the strongest industry-code pages inside that exact buyer + service slice.
Best next ranking moves
Move faster from Department of State + PSC D399
Use the strongest next click when this buyer + service slice is already the right lane and you want to get to the best detail page faster.
Open NAICS 541512
Jump straight into the strongest NAICS detail page inside Department of State + PSC D399.
Open top NAICS page
Open PSC D399 under Department of State
Move from the ranking layer into the full buyer + PSC page with recipient listings and overlap sections.
Open agency + PSC page
Switch to top NAICS paths for Department of State
Broaden out from PSC D399 and see which industry codes lead the whole Department of State slice.
Open top NAICS paths
Agency + service NAICS rankings
Top NAICS paths inside Department of State + PSC D399
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.
NAICS 541512
33 visible recipients · Computer Systems Design Services
NAICS 541330
11 visible recipients · Engineering Services
NAICS 541519
30 visible recipients · Other Computer Related Services
NAICS 541513
13 visible recipients · Computer Facilities Management Services
NAICS 517110
7 visible recipients · Wired Telecommunications Carriers
NAICS 541712
6 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
NAICS 541511
21 visible recipients · Custom Computer Programming Services
NAICS 541611
14 visible recipients · Administrative Management and General Management Consulting Services
NAICS 517919
1 visible recipients · All Other Telecommunications
NAICS 541710
1 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences
NAICS 561210
4 visible recipients · Facilities Support Services
NAICS 488999
1 visible recipients · All Other Support Activities for Transportation
NAICS 518210
7 visible recipients · Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
NAICS 334111
3 visible recipients · Electronic Computer Manufacturing
NAICS 561990
2 visible recipients · All Other Support Services
NAICS 333318
1 visible recipients · Other Commercial and Service Industry Machinery Manufacturing
NAICS 339999
1 visible recipients · All Other Miscellaneous Manufacturing
NAICS 511210
5 visible recipients · Software Publishers
NAICS 541990
8 visible recipients · All Other Professional, Scientific, and Technical Services
NAICS 334210
2 visible recipients · Telephone Apparatus Manufacturing
NAICS 541810
1 visible recipients · Advertising Agencies
NAICS 517911
3 visible recipients · Telecommunications Resellers
NAICS 517410
1 visible recipients · Satellite Telecommunications
NAICS 561320
1 visible recipients · Temporary Help Services
NAICS 561612
1 visible recipients · Security Guards and Patrol Services
NAICS 238220
1 visible recipients · Plumbing, Heating, and Air-Conditioning Contractors
NAICS 541380
1 visible recipients · Testing Laboratories and Services
NAICS 237130
1 visible recipients · Power and Communication Line and Related Structures Construction
NAICS 488310
1 visible recipients · Port and Harbor Operations
NAICS 541715
2 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
NAICS 561621
1 visible recipients · Security Systems Services (except Locksmiths)
NAICS 493110
1 visible recipients · General Warehousing and Storage
NAICS 561410
1 visible recipients · Document Preparation Services
NAICS 611430
1 visible recipients · Professional and Management Development Training
NAICS 519130
1 visible recipients · Internet Publishing and Broadcasting and Web Search Portals
NAICS 611699
1 visible recipients · All Other Miscellaneous Schools and Instruction
NAICS 541199
1 visible recipients · All Other Legal Services
NAICS 443120
1 visible recipients · Computer and Software Stores
NAICS 336611
1 visible recipients · Ship Building and Repairing
NAICS 423430
1 visible recipients · Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
Other buyer + code ranking views
Move around Department of State and PSC D399
Switch back into the broader buyer PSC ranking layer or go straight into the detailed buyer + PSC page when you want recipient-level browsing.
Top PSC paths for Department of State
Return to the broader buyer ranking layer before picking a different service code.
Open top PSC paths
Open PSC D399 under Department of State
Move from the ranking layer into the full buyer + PSC detail page with recipient listings and overlap sections.
Open agency + PSC page
Directory graph
Move into full directory hubs
Use this ranking page as a shortcut, then branch back into the wider agency, PSC, NAICS, state, and top-list hubs when you want broader browse coverage.