NAICS 541511Custom Computer Programming Services

Covers establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer. It is the default code for bespoke application development work in federal solicitations.

Size standard

$34.0 million average annual receipts

Sector: Professional, Scientific, and Technical Services

Top buying agencies

  • Department of Defense
  • GSA
  • Department of Veterans Affairs
  • Department of Health and Human Services

Includes

  • Custom application development
  • Software modernization and refactoring
  • API and integration development

Excludes

  • Packaged software publishing (513210)
  • Systems integration design (541512)

Bidding tips for 541511

  • Lead with secure development lifecycle practices — evaluators score process, not language choice
  • Name the exact frameworks and cloud environments in the requirement
  • Provide code quality and defect metrics from prior contracts

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