541511

Custom Computer Programming Services

Professional, Scientific, and Technical Services › Professional, Scientific, and Technical Services › Computer Systems Design and Related Services

SBA Size Standard

$34M average annual receipts

Revenue-Based Verify at SBA.gov →

NAICS Code Hierarchy

54

Sector

Professional, Scientific, and Technical Services

541

Subsector

Professional, Scientific, and Technical Services

5415

Industry Group

Computer Systems Design and Related Services

541511

National Industry (This Code)

Custom Computer Programming Services

Official NAICS Description

Source: U.S. Census Bureau 2022 NAICS

📘 Source: U.S. Census Bureau — 2022 NAICS Manual
This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer.

✓ Small Business Eligibility at a Glance

Based on SBA Table of Small Business Size Standards (2024)

Size Standard

$34M average annual receipts

Measurement Period

3-year average

Standard Type

Revenue-Based

Applies To

All contracts under NAICS 541511

Set-Aside Programs

8(a), WOSB, HUBZone, SDVOSB

Certification Required

No (self-certify in SAM.gov)

Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.

Cross-References

The following activities are classified elsewhere in the NAICS system:

Software design, development, and publishing, or software publishing only--are classified in Industry 513210, Software Publishers;
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.

How to Use NAICS 541511 in SAM.gov

NAICS code 541511Custom Computer Programming Services — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Computer Systems Design and Related Services space will be able to find your business.

If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of $34M average annual receipts, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 541511.

Log in Entity Registration Goods & Services Add NAICS Code Enter 541511 Save

Frequently Asked Questions

What is NAICS code 541511?

NAICS code 541511 is 'Custom Computer Programming Services', classified under the Professional, Scientific, and Technical Services sector (NAICS 54). This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer. Cross-References. Establishments prim

What is the SBA small business size standard for NAICS code 541511?

The SBA defines a small business under NAICS code 541511 (Custom Computer Programming Services) as one with $34M average annual receipts. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.

How do I register NAICS code 541511 in SAM.gov?

To register NAICS code 541511 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 541511 (Custom Computer Programming Services) to your NAICS code list. You may designate one code as your Primary NAICS code.

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Related NAICS Codes

Other codes in Computer Systems Design and Related Services

Related PSC Codes

PSC codes commonly used with this NAICS sector

Source: GSA PSC Manual April 2025

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