NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
523991
NAICS 523991 — Trust, Fiduciary, and Custody Activities
Trust, Fiduciary, and Custody Activities
NAICS 523991 is the national industry code for trust, fiduciary, and custody activities establishments in the United States. The Small Business Administration sets a size standard of $47.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
SBA: $47.0
View full SBA standard
Related industries in 52399 (All Other Financial Investment Activities)
View parent 52399Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.
Cross-references & crosswalks
NAICS 2017 equivalent 523991
Trust, Fiduciary, and Custody Activities
View full 2022 → 2017 crosswalkSBA size standard description
Trust, Fiduciary and Custody Activities
Changes to receipts-based standard: [object Object]