541511 — Custom Computer Programming Services
NAICS 541511 is 'Custom Computer Programming Services', a 2022 U.S. national industry under Sector 54 (Professional, Scientific, and Technical Services); the SBA small-business size standard is $34,000,000.
Description
This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer.
Exclusions & Cross-References
- Software design, development, and publishing, or software publishing only--are classified in Industry
- 513210, Software Publishers;
- PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES 465
- Providing computing infrastructure, data processing services, Web hosting services (except software
- publishing), and related services, including streaming support services (except streaming distribution
- services)--are classified in Industry 518210, Computing Infrastructure Providers, Data Processing, Web
- Hosting, and Related Services; and
- Planning and designing computer systems that integrate computer hardware, software, and communication
- technologies, even though such establishments may provide custom software as an integral part of their
- services--are classified in U.S. Industry 541512, Computer Systems Design Services.
Overview Facts
| NAICS Code | 541511 |
|---|---|
| Industry Title | Custom Computer Programming Services |
| SBA Size Standard | $34,000,000 |
| IRS PBA Code | 541511 (exact match) |
| Sectors Hierarchy | Sector 54 → 541 → 5415 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
NAICS Structure: 541511
National Industry
Sector (2)
54
Professional, Scientific, and Technical Services
Subsector (3)
541
Professional, Scientific, and Technical Services
Industry Group (4)
5415
Computer Systems Design and Related Services
Industry (5)
54151
Computer Systems Design and Related Services
National Industry (6)
541511
Custom Computer Programming Services
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 7371 - Computer Programming Services (via SIC1987:7371→NAICS1997:541511→2002:541511→2007:541511→2012:541511→2017:541511→2022:541511)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 541511:
- Sector 54 Directory Hub — List of related industries in the Professional, Scientific, and Technical Services sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 5415
Frequently Asked Questions (FAQ)
Is 541511 a valid 2022 NAICS code?
NAICS 541511 is 'Custom Computer Programming Services', a 2022 U.S. national industry under Sector 54 (Professional, Scientific, and Technical Services); the SBA small-business size standard is $34,000,000.
What is the SBA size standard for NAICS 541511?
The SBA small business size standard for NAICS 541511 is $34,000,000 (based on receipts).
What is the legacy SIC code mapping for 541511?
NAICS code 541511 maps to the legacy 1987 SIC codes: 7371 - Computer Programming Services.