Data provenance

Official records, clear lineage, no mystery layer.

NAICS Pulsar keeps the Census Bureau record authoritative. Search technology helps you reach the right record; it never rewrites the official title, hierarchy, or definition.

2,125official codes

20sectors

96subsectors

308industry groups

689NAICS industries

1,012U.S. industries

Primary files

Official Census sources

Structure workbookCodes, titles, levels, hierarchy, and change indicators Descriptions workbookOfficial definitions, cross-references, and description pointers Index fileAssociated business activities and search language 2022 NAICS manualThe complete official classification manual

Daily source monitoring

Each day, NAICS Pulsar checks the official source metadata. A changed source is recorded as a new observation and prepared as a new revision; the active dataset is not silently overwritten.

01 Detect02 Preserve03 Validate04 Activate

Versioned by design

Source manifests and checksums make every imported revision identifiable and reproducible.

History stays intact

New official releases are added alongside prior revisions so changes can be audited over time.

AI stays grounded

Semantic matching ranks official candidates; every answer resolves to a Census-backed record.