NAICS Code 541511: Custom Computer Programming Services

National industry

SBA small business size standard: $34 million in average annual receipts

Definition

This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer.

Government contracts for this service: PSC DA01 IT Application Development Support Services

Code facts

Contract awards
1,902 In the last 12 months
Contract obligations
$10,482,072,534 In FY2025

NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.

Business activities under NAICS 541511

  • Applications software programming services, custom computer
  • Computer program or software development, custom
  • Computer programming services, custom
  • Computer software analysis and design services, custom
  • Computer software programming services, custom
  • Computer software support services, custom
  • Programming services, custom computer
  • Software analysis and design services, custom computer
  • Software programming services, custom computer
  • Web (i.e., Internet) page design services, custom

Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $129,128,508
FY2026 $11,968,550,402
FY2025 $10,482,072,534
FY2024 $11,017,323,849
FY2023 $10,752,365,791

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Palantir USG Inc. $1,658,108,585
2 General Dynamics Information Technology, Inc. $789,084,764
3 Booz Allen Hamilton Inc. $497,979,889
4 International Business Machines Corporation $308,186,863
5 Lockheed Martin Corporation $305,175,808
6 Peraton Inc. $276,549,400
7 Sprezzatura Management Consulting, LLC $215,837,137
8 Carahsoft Technology Corp $178,088,794
9 Softrams LLC $161,855,824
10 Securigence LLC $153,579,239

See the full FY2025 ranking of NAICS 541511 contractors, by parent company.

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of the Army Department of Defense $2,071,626,519
2 Air Force Department of Defense $1,758,762,343
3 Department of Health and Human Services $1,674,698,639
4 Department of Veterans Affairs $883,054,712
5 Department of Homeland Security $761,779,103
6 Department of Commerce $531,352,443
7 Department of the Navy Department of Defense $522,151,185
8 Department of Justice $381,561,544
9 Department of the Treasury $348,311,203
10 Office of the Secretary of Defense Department of Defense $327,194,135
Rank PSC code Obligated, FY2026–FY2027 Share
1 DA01 IT and Telecom – Business Application/Application Development Support Services (Labor) $3,939,724,804
2 DA10 IT and Telecom – Business Application/Application Development Software as a Service $1,589,583,458
3 7F20 IT and Telecom – IT Management Tools/Products (Hardware and Perpetual License Software) $1,265,668,063
4 R499 Other Professional Services $785,145,636
5 DF01 IT and Telecom – IT Management Support Services (Labor) $428,947,667
6 R425 Engineering and Technical Services $334,113,685
7 K058 Modification of Equipment: Communication, Detection, and Coherent Radiation Equipment $261,685,420
8 7A21 IT and Telecom – Business Application Software (Perpetual License Software) $258,528,652
9 R799 Other Management Support Services $252,515,321
10 R408 Program Management/Support Services $190,702,811

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Virginia $3,992,673,219
2 Maryland $2,035,971,027
3 California $1,826,015,535
4 District of Columbia $994,944,223
5 Alabama $473,143,330
6 Texas $467,454,569
7 Florida $253,793,843
8 Ohio $179,036,396
9 Colorado $176,894,697
10 Georgia $131,137,199
11 West Virginia $121,105,318
12 New Jersey $109,459,247
13 Massachusetts $91,236,500
14 New York $83,822,884
15 Arizona $78,212,686
16 Utah $71,112,413
17 Mississippi $58,667,179
18 New Mexico $49,329,774
19 Louisiana $46,944,453
20 Oklahoma $45,043,720
21 Pennsylvania $42,935,980
22 Alaska $37,870,787
23 North Carolina $36,403,135
24 Illinois $33,307,430
25 Wisconsin $32,227,244
26 Kansas $30,783,010
27 Kentucky $27,134,871
28 Hawaii $25,383,697
29 Missouri $21,204,147
30 Vermont $17,504,456
31 Indiana $15,853,089
32 Nebraska $14,963,899
33 Tennessee $13,073,544
34 Nevada $12,604,640
35 Delaware $10,813,962
36 Michigan $9,286,593
37 New Hampshire $9,270,827
38 Minnesota $8,237,111
39 South Carolina $7,808,448
40 Oregon $5,784,264
41 Washington $4,749,770
42 Guam $4,605,834
43 Montana $3,827,494
44 Iowa $2,253,680
45 Connecticut $1,637,140
46 Maine $1,595,310
47 Idaho $1,353,396
48 South Dakota $699,148
49 Puerto Rico $407,112
50 Arkansas $197,653
51 Rhode Island $161,181
52 Wyoming $117,743
53 North Dakota $85,627
Show all 53

Shares are of everything obligated under NAICS 541511 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Hackweek Event that will facilitate the integration of data from multiple missions and the development of new products and applications. Special Notice · Shared Services Center
Safety-Integrated Risk Information System Pre-Solicitation · Nuclear Weapons Center (AFMC)
Virtual Industry Day for Insurance Verification Services 2026 Special Notice · Federal Emergency Management Agency
IM&T, Program, Resource, Optimization, Value and Execution (IMPROVE) Pre-Solicitation · Washington Headquarters Service
NGA - HYDRA 2 Extension Limited / Sole Source Justification · National Geospatial Intelligence Agency —
Mercury Draft Solicitation Pre-Solicitation · National Geospatial Intelligence Agency
Radio Distribution System (RDS) RFI Pre-Solicitation · AFLCMC Hanscom AFB
Notice of Proposed Contract Action/ Notice of Intent to Sole Source Platform One Cerberus Help Desk Bridge 2 Pre-Solicitation · AFLCMC Joint Base San Antonio
Notice of Proposed Contract Action/ Notice of Intent to Sole Source Platform One Cerberus Help Desk Bridge 1 Pre-Solicitation · AFLCMC Joint Base San Antonio
AoI 003 Single Mobility System (SMS) Special Notice · United States Transportation Command
30 RS Mission Planning Software Tool (MPST) Solicitation · Air Combat Command (USAF)
Party Bus Operation Bridge 1 Justification and Approval Limited / Sole Source Justification · AFLCMC Joint Base San Antonio —
BATDOK Family of Systems (FoS) Pre-Solicitation · Defense Health Agency
Big Bang’s Capabilities Growth, Continued Relevance, and Operations Team (Cosmic Dawn Team 2) (FA8307-26-R-B004) Intent to Bundle Requirements (DoD-Funded) · AFLCMC Joint Base San Antonio —
Enterprise Land Mobile Radio (ELMR) Award Notice · Marine Corps (Navy) —
TECHNOLOGY LICENSING OPPORTUNITY: Scan-to-Sample Special Notice · Department of Energy
NCSS - Onboarding NHLBI to NEI OpenSpecimen Solicitation · Office of Logisitics and Acquisition Operations (NIH)
AI-Enabled Support Pre-Solicitation · Air Forces Europe and Africa (USAF)
Notice of Intent to Award Sole Source Special Notice · Marine Corps (Navy)
Notice of Intent to Award Sole Source_Legacy Applications Technical and Operational Support Services (LATOSS) Special Notice · ACC Aberdeen Proving Ground
7A--sources sought notice Special Notice · Interior Business Center (DO)
3.45 GHz Engineering Support for Enduring Coordination (3-ESEC) Notice of Intent to Sole Source Special Notice · Defense Information Systems Agency
DA01--One time buy (12/15/2026 - 12/14/2027) Multi-Facility Powerscribe One Migration Award Notice · Veterans Integrated Service Network 12 (VHA) —
Resource enterprise services (RES) support services Award Notice · Washington Headquarters Service —
IMT HDB Service IDIQ Contract Solicitation
Simulator Common Architecture Requirements and Standards (SCARS) Pre-Solicitation · Aeronautical Systems Center (AFMC)
Training Simulators & Mobile Applications Development & Maintenance for the USAF Expeditionary Operations School at Joint Base McGuire-Dix-Lakehurst NJ Pre-Solicitation · Air Mobility Command (USAF)
Foms software development Pre-Solicitation · Franchise Acquisition Servies (FAA)
F-35 JPO Enterprise Data Science and Analytics Support Pre-Solicitation · Naval Air Systems Command (Navy)
NOAA NOS OCS Coast Pilot Production System- Maintenance and Support Pre-Solicitation · National Oceanic and Atmospheric Administration
U.S. Coast Guard Augmented Reality and Virtual Reality Training Devices Pre-Solicitation
SILVAH software coding Pre-Solicitation · Forest Service
AF-PLM Capability Integration, Sustainment & Licenses Pre-Solicitation · AFLCMC Wright Patterson AFB
Strategy Execution Software, Installation and Training Pre-Solicitation · Naval Sea Systems Command (Navy)
Request for White Papers: Intelligence Resource Execution and Oversight (Project Argus) Special Notice · Washington Headquarters Service
SOLE SOURCE - HyperWorks Technical Support and Software Maintenance Special Notice · Naval Sea Systems Command (Navy)
Web Sustainment/Content Management/Cloud Hosting Pre-Solicitation · Defense Human Resources Activity
Justification - Records & Information Management Unit (RIMU) Limited / Sole Source Justification · Immigration and Customs Enforcement —
J075--Special notice Mosaic Service Plan agreement Special Notice · Veterans Integrated Service Network 16 (VHA)
DISA Cybersecurity Service Provider (CSSP) / J34 External Vulnerability Scans (EVS) and Web Vulnerability Scans (WVS) Pre-Solicitation · Defense Information Systems Agency
Website Maintenance and Design Limited / Sole Source Justification · Office of the Assistant Secretary for Administration —
Depot Maintenance Applications Consolidated 3 Pre-Solicitation · AFLCMC Wright Patterson AFB
Jury management solution (JMS) system Pre-Solicitation · Administrative Office of the U.S. Courts
High-Performance Computing Software Development and Technical Services Pre-Solicitation · National Oceanic and Atmospheric Administration
Enterprise Biometrics Matching Support Limited / Sole Source Justification · Office of Procurement Operations —
Web Support Operations and Maintenance (O&M) Award Notice · National Archives and Records Administration —
Venom Software and GARMIN System Sustainment Program for F-5 Aircraft Award Notice Award Notice · Naval Air Warfare Center (NAVAIR) —
N6852027R1003: Naval Air Systems Command (NAVAIR) Depot Maintenance System (NDMS) IT Program/Project Functional Requirements and Software Lifecycle Support (ITPSS) Request for Proposal (RFP) Special Notice · Department of the Navy
UiPath Testing Environment Limited / Sole Source Justification · Naval Supply Systems Command (Navy) —
CenTAM_Special Notice_Acquisition Update Special Notice · US Census Bureau
Show 40 more

Latest 50 of 22,812 listed here. See the rest on GovTribe.

Size standard history

Federal Register rules that named this code

Final rule Published Effective
Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation 87 FR 69118 · 3245-AH93
Small Business Size Standards: Adjustment of Monetary-Based Size Standards for Inflation 84 FR 34261 · 3245-AH17
Small Business Size Standards: Inflation Adjustment to Monetary Based Size Standards 79 FR 33647 · 3245-AG60
Small Business Size Standards: Professional, Technical, and Scientific Services 77 FR 7490 · 3245-AG07
Small Business Size Standards: Inflation Adjustment to Size Standards, Business Loan Program, and Disaster Assistance Loan Program 73 FR 41237 · 3245-AF41
Small Business Size Standards, Inflation Adjustment to Size Standards; Business Loan Program; Disaster Assistance Loan Program 70 FR 72577 · 3245-AF41
Small Business Size Standards; Adoption of Size Standards by 2002 North American Industry Classification System for Size Standards 67 FR 56905 · 3245-AF00
Small Business Size Standards; Inflation Adjustment to Size Standards 67 FR 3041 · 3245-AE56
Small Business Size Regulations; Size Standards and the North American Industry Classification System 65 FR 30836

From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.

Quick answers

What is NAICS 541511?

NAICS 541511 is Custom Computer Programming Services, a national industry in NAICS 54, Professional, Scientific, and Technical Services.

What is the NAICS code for computer programming services, custom?

The NAICS code for computer programming services, custom is 541511, Custom Computer Programming Services.

What is the NAICS code for programming services, custom computer?

The NAICS code for programming services, custom computer is 541511, Custom Computer Programming Services.

What is the NAICS code for software programming services, custom computer?

The NAICS code for software programming services, custom computer is 541511, Custom Computer Programming Services.

When did the size standard for NAICS 541511 last change?

The most recent Federal Register rule on record that names NAICS 541511 in the SBA's size standards is "Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation" (87 FR 69118), published Nov 17, 2022 and effective Dec 19, 2022.

How much do federal agencies spend under NAICS 541511?

Federal contracts under NAICS 541511 obligated $10,482,072,534 in fiscal year 2025 and $44,349,441,083 in fiscal years 2023 through 2027.

Who are the largest contractors under NAICS 541511?

The contractors with the most obligated under NAICS 541511 in fiscal years 2026 and 2027 are Palantir USG Inc. ($1,658,108,585); General Dynamics Information Technology, Inc. ($789,084,764); and Booz Allen Hamilton Inc. ($497,979,889).

Which agencies buy the most under NAICS 541511?

The agencies that obligated the most under NAICS 541511 in fiscal years 2026 and 2027 are Department of the Army ($2,071,626,519), Air Force ($1,758,762,343) and Department of Health and Human Services ($1,674,698,639).

Which PSC codes are used with NAICS 541511?

The PSC codes with the most obligated under NAICS 541511 in fiscal years 2026 and 2027 are DA01 IT and Telecom – Business Application/Application Development Support Services (Labor), DA10 IT and Telecom – Business Application/Application Development Software as a Service and 7F20 IT and Telecom – IT Management Tools/Products (Hardware and Perpetual License Software).

Where is the work under NAICS 541511 performed?

By place of performance, the states with the most contract obligations under NAICS 541511 over the last 12 months are Virginia ($3,992,673,219), Maryland ($2,035,971,027) and California ($1,826,015,535).

What is the latest contract opportunity under NAICS 541511?

The latest contract opportunity under NAICS 541511 is Hackweek Event that will facilitate the integration of data from multiple missions and the development of new products and applications, special notice from Shared Services Center, posted November 12, 2026.

On GovTribe

See everything under NAICS 541511

  • Federal contract opportunities, awards and IDVs under this code
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