Private company

Commonwealth Financial Network

Logo: Commonwealth Financial Network, CC BY-SA 4.0, via Wikimedia Commons3

American investment advisor firm

Commonwealth Financial Network is a privately held Registered Investment Adviser–independent broker/dealer in Waltham, Massachusetts, and 110 Plaza in San Diego, California, and a new office to be opened in 2024 in Cincinnati, Ohio. The company was founded in 1979 by Joseph S. Deitch and was incorporated under the name Commonwealth Equity Services. In 1999, the name Commonwealth Financial Network was adopted.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1979Founded1
  • Industryfinancial services1
  • HeadquartersWaltham1

Commonwealth Financial Network is a privately held Registered Investment Adviser–independent broker/dealer in Waltham, Massachusetts, and 110 Plaza in San Diego, California, and a new office to be opened in 2024 in Cincinnati, Ohio. The company was founded in 1979 by Joseph S. Deitch and was incorporated under the name Commonwealth Equity Services. In 1999, the name Commonwealth Financial Network was adopted. As of 2017, Deitch remains Chairman of the firm. The firm is owned and controlled by its 13 managing principals.2

Timeline

  1. 1979Founded Founded1

Sources

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