Q. Which companies issue preferred shares of stock?

Preferred stocks differ from common stock in several ways.  Preferred stocks have dividends.  The payment of the preferred stock dividends comes before the payment of dividends to the common stock.  Common stock holders have voting rights, while preferred stock holders do not.  In these ways, preferred stocks are similar to bonds.  Interest gets paid to bond holders before dividends get paid to common stock holders, and bond holders have no voting rights.  

• Quantum Online lists preferred stocks and has free registration. See also their explanatory material about finding tickers for preferred stock.

• Refinitiv Workspace.
  • Click Screening & Analysis, in the left-side column,
  • then Deals & League Tables,
  • then Equity.
  • Search in Security Type for preferred.
• Bloomberg - Use F7 the Pfd key.

CRSP does not have pricing data for preferred stock.