A more recent edition of NAICS is available.
2012 Edition

national industry 523999

Miscellaneous Financial Investment Activities


This U.S. industry comprises establishments primarily engaged in acting as agents and/or brokers (except securities brokerages and commodity contracts brokerages) in buying or selling financial contracts and those providing financial investment services (except securities and commodity exchanges; portfolio management; investment advice; and trust, fiduciary, and custody services) on a fee or commission basis.

The immediate parent of national industry 523999 is international industry 52399: All Other Financial Investment Activities

Illustrative Examples

  • Exchange clearinghouses, commodities or securities Stock quotation services
  • Gas lease brokers' offices

2012 NAICS Edition Cross References

  • Establishments primarily engaged in:
  • Investment banking, securities dealing, securities brokering, commodity contracts dealing, or commodity contracts brokering:are classified in Industry Group 5231, Securities and Commodity Contracts Intermediation and Brokerage;
  • Acting as principals (except investment bankers, securities dealers, and commodity contracts dealers) in buying or selling financial contracts:are classified in Industry 523910, Miscellaneous Intermediation;
  • Furnishing physical or electronic marketplaces for the purpose of facilitating the buying and selling of securities and commodities:are classified in Industry 523210, Securities and Commodity Exchanges;
  • Managing the portfolio assets (i.e., funds) of others:are classified in Industry 523920, Portfolio Management;
  • Providing customized investment advice:are classified in Industry 523930, Investment Advice;
  • Providing trust, fiduciary, and custody services to others:are classified in U.S. Industry 523991, Trust, Fiduciary, and Custody Activities; and
  • Financial transactions processing, reserve, and clearinghouse activities:are classified in Industry 522320, Financial Transactions Processing, Reserve, and Clearinghouse Activities.


The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Existed Equivalent Value
2002 523999
2007 523999
2012 523999
2017 523999
2022 523999

Insurance Industry Mappings

The US Property and Casualty Insurance Industry may use the following classification descriptions which might encompass national industry 523999, Miscellaneous Financial Investment Activities:

  1. all other financial investment activity
  2. finance and insurance
  3. financial investment activity misc
  4. financial investment activity misc naic
  5. miscellaneous financial investment activity
  6. oil or gas lease operation natural gas
  7. oil or gas lease operation natural gas within city limit etc
  8. oil or gas lease operation natural gas within limit of town
  9. oil or gas lease operation natural gas within the limit of any town or city on the right of way of any railroad or in any ocean gulf or bay
  10. oil or gas lease operation natural gas within the limit of anytownor city on the right of way of any railroad or in any ocean gulf or bay
  11. other financial investment activity
  12. security broker dealer and flotation company
  13. security commodity contract and other financial investment and related activity
  14. service allied with the exchange of security or commodity not otherwise classified


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