Agency + NAICS PSC rankings

Top PSC paths for NAICS 541990 under Department of the Interior.

Use this ranking when the research starts with Department of the Interior and NAICS 541990, and you want the strongest service-code pages inside that exact buyer + industry slice.

Best next ranking moves

Move faster from Department of the Interior + NAICS 541990

Use the strongest next click when this buyer + industry slice is already the right lane and you want to get to the best detail page faster.

Agency + industry PSC rankings

Top PSC paths inside Department of the Interior + NAICS 541990

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

1

PSC R499

38 visible recipients · SUPPORT- PROFESSIONAL: OTHER

$5,933,331,473
2

PSC R425

16 visible recipients · SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL

$3,726,930,274
3

PSC R408

21 visible recipients · SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT

$2,624,544,142
4

PSC D399

7 visible recipients · IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS

$1,214,367,438
5

PSC N059

1 visible recipients · INSTALLATION OF EQUIPMENT- ELECTRICAL AND ELECTRONIC EQUIPMENT COMPONENTS

$714,047,199
6

PSC DA01

9 visible recipients · IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR)

$702,666,542
7

PSC AD93

1 visible recipients · R&D- DEFENSE OTHER: OTHER (ADVANCED DEVELOPMENT)

$580,723,361
8

PSC U009

1 visible recipients · EDUCATION/TRAINING- GENERAL

$533,998,762
9

PSC R604

1 visible recipients · SUPPORT- ADMINISTRATIVE: MAILING/DISTRIBUTION

$527,296,762
10

PSC AD92

1 visible recipients · R&D- DEFENSE OTHER: OTHER (APPLIED RESEARCH/EXPLORATORY DEVELOPMENT)

$508,606,091
11

PSC D307

4 visible recipients · IT AND TELECOM- IT STRATEGY AND ARCHITECTURE

$435,087,489
12

PSC AZ13

1 visible recipients · R&D- OTHER RESEARCH AND DEVELOPMENT (ADVANCED DEVELOPMENT)

$386,142,023
13

PSC R706

5 visible recipients · SUPPORT- MANAGEMENT: LOGISTICS SUPPORT

$378,493,080
14

PSC R414

1 visible recipients · SYSTEMS ENGINEERING SERVICES

$366,486,713
15

PSC D302

4 visible recipients · IT AND TELECOM- SYSTEMS DEVELOPMENT

$337,447,827
16

PSC C219

5 visible recipients · ARCHITECT AND ENGINEERING- GENERAL: OTHER

$312,346,891
17

PSC R423

1 visible recipients · SUPPORT- PROFESSIONAL: INTELLIGENCE

$300,026,977
18

PSC AD26

1 visible recipients · R&D- DEFENSE OTHER: SERVICES (MANAGEMENT/SUPPORT)

$266,348,133
19

PSC AN42

2 visible recipients · HEALTH R&D SERVICES; HEALTH CARE - OTHER; APPLIED RESEARCH

$237,384,882
20

PSC F999

5 visible recipients · OTHER ENVIRONMENTAL SERVICES

$236,588,245
21

PSC R699

10 visible recipients · SUPPORT- ADMINISTRATIVE: OTHER

$229,192,723
22

PSC AC33

1 visible recipients · NATIONAL DEFENSE R&D SERVICES; DEFENSE-RELATED ACTIVITIES; EXPERIMENTAL DEVELOPMENT

$209,187,901
23

PSC R799

4 visible recipients · SUPPORT- MANAGEMENT: OTHER

$206,854,070
24

PSC R406

1 visible recipients · SUPPORT- PROFESSIONAL: POLICY REVIEW/DEVELOPMENT

$206,162,587
25

PSC R421

2 visible recipients · TECHNICAL ASSISTANCE

$185,066,523
26

PSC AC12

1 visible recipients · NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; APPLIED RESEARCH

$172,150,443
27

PSC C211

4 visible recipients · ARCHITECT AND ENGINEERING- GENERAL: LANDSCAPING, INTERIOR LAYOUT, AND DESIGNING

$169,793,039
28

PSC U006

1 visible recipients · EDUCATION/TRAINING- VOCATIONAL/TECHNICAL

$169,226,881
29

PSC R431

3 visible recipients · SUPPORT- PROFESSIONAL: HUMAN RESOURCES

$167,164,198
30

PSC AC13

1 visible recipients · NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; EXPERIMENTAL DEVELOPMENT

$163,377,119
31

PSC D318

5 visible recipients · IT AND TELECOM- INTEGRATED HARDWARE/SOFTWARE/SERVICES SOLUTIONS, PREDOMINANTLY SERVICES

$162,116,832
32

PSC R707

1 visible recipients · SUPPORT- MANAGEMENT: CONTRACT/PROCUREMENT/ACQUISITION SUPPORT

$157,212,136
33

PSC D310

2 visible recipients · IT AND TELECOM- CYBER SECURITY AND DATA BACKUP

$148,147,937
34

PSC B599

4 visible recipients · SPECIAL STUDIES/ANALYSIS- OTHER

$147,120,643
35

PSC AJ13

1 visible recipients · GENERAL SCIENCE & TECHNOLOGY R&D SVCS; GENERAL SCIENCE & TECHNOLOGY; EXPERIMENTAL DEVELOPMENT

$130,101,211
36

PSC DD01

5 visible recipients · IT AND TELECOM - SERVICE DELIVERY SUPPORT SERVICES: ITSM, OPERATIONS CENTER, PROJECT/PM (LABOR)

$127,500,687
37

PSC DF01

4 visible recipients · IT AND TELECOM - IT MANAGEMENT SUPPORT SERVICES (LABOR)

$123,562,515
38

PSC Z2KZ

1 visible recipients · REPAIR OR ALTERATION OF OTHER CONSERVATION AND DEVELOPMENT FACILITIES

$123,113,672
39

PSC B537

2 visible recipients · SPECIAL STUDIES/ANALYSIS- MEDICAL/HEALTH

$119,453,445
40

PSC DA10

1 visible recipients · IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SOFTWARE AS A SERVICE

$110,552,445
41

PSC R410

1 visible recipients · SUPPORT- PROFESSIONAL: PROGRAM EVALUATION/REVIEW/DEVELOPMENT

$95,572,589
42

PSC R702

2 visible recipients · SUPPORT- MANAGEMENT: DATA COLLECTION

$92,283,546
43

PSC L010

1 visible recipients · TECHNICAL REPRESENTATIVE- WEAPONS

$91,066,191
44

PSC AZ16

1 visible recipients · R&D- OTHER RESEARCH AND DEVELOPMENT (MANAGEMENT/SUPPORT)

$88,501,490
45

PSC 7H20

1 visible recipients · IT AND TELECOM - PLATFORM PRODUCTS: DATABASE, MAINFRAME, MIDDLEWARE (HW, PERPETUAL LICENSE SOFTWARE)

$70,199,220
46

PSC C1AA

1 visible recipients · ARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS

$69,423,467
47

PSC DC01

1 visible recipients · IT AND TELECOM - DATA CENTER SUPPORT SERVICES (LABOR)

$60,698,311
48

PSC AZ14

1 visible recipients · R&D- OTHER RESEARCH AND DEVELOPMENT (ENGINEERING DEVELOPMENT)

$56,789,259
49

PSC AC31

1 visible recipients · NATIONAL DEFENSE R&D SERVICES; DEFENSE-RELATED ACTIVITIES; BASIC RESEARCH

$43,142,580
50

PSC DH01

1 visible recipients · IT AND TELECOM - PLATFORM SUPPORT SERVICES: DATABASE, MAINFRAME, MIDDLEWARE (LABOR)

$41,548,005

Other buyer + code ranking views

Move around Department of the Interior and NAICS 541990

Switch back into the broader buyer NAICS ranking layer or go straight into the detailed buyer + NAICS page when you want recipient-level browsing.

Directory graph

Move into full directory hubs

Use this ranking page as a shortcut, then branch back into the wider agency, NAICS, PSC, state, and top-list hubs when you want broader browse coverage.