NAICS Code 523991

NAICS 523991

NAICS Code 523991 – Trust, Fiduciary, and Custody Activities

Definition of NAICS Code 523991: This U.S. industry comprises establishments primarily engaged in providing trust, fiduciary, and custody services to others, as instructed, on a fee or contract basis, such as bank trust offices and escrow agencies (except real estate).

  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 523991

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

  • Managing the portfolio assets (i.e., funds) of others–are classified in Industry NAICS 523920, Portfolio Management;
  • Performing real estate escrow or real estate fiduciary activities–are classified in Industry NAICS 531390, Other Activities Related to Real Estate; and
  • Awarding grants from trust funds–are classified in Industry 81321, Grantmaking and Giving Services.

Other Index Entries for NAICS 523991

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Administrators of private estates
  • Bank trust offices
  • Escrow agencies (except real estate)
  • Fiduciary agencies (except real estate)
  • Personal investments trust administration
  • Securities custodians
  • Trust administration, personal investment
  • Trust companies, nondepository

Suggested Insurance Conversion Table for NAICS Code 523991

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 8742NAICS 523991
  • CA WC: 8742
  • DE WC: 951
  • PA WC: 951
  • MI WC: 8742
  • NJ WC: 8742
  • NY WC: 8742
  • WY WC: 523991
  • GL: 47367

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 523991 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 52: Finance and Insurance
  • Subsector 523: Securities, Commodity Contracts, and Other Financial Investments and Related Activities
  • Industry Group 5239: Other Financial Investment Activities
  • Industry 52399: All Other Financial Investment Activities
  • 6 Digit Code(s) NAICS 523991: Trust, Fiduciary, and Custody Activities
  • 6 Digit Code(s) NAICS 523999: Miscellaneous Financial Investment Activities
Other helpful NAICS Downloads

View the download page for the material below.

NAICS Code 523991