WASHINGTON — House Democrats have subpoenaed nine large banks as part of an inquiry into President Trump’s financial interests, according to people familiar with the matter, including six U.S. firms and three foreign lenders.

The list includes U.S. giants JPMorgan Chase & Co. JPM, -1.62% , Citigroup Inc. C, -3.32% , Morgan Stanley MS, -2.54% , Wells Fargo & Co. WFC, -3.46% and Bank of America BAC, -2.84% as well as Capital One Financial Corp. COF, -2.61% . It also includes Deutsche Bank DB, -1.10% DBK, -0.72% , Royal Bank of Canada RY, -0.73% and Toronto-Dominion Bank TD, -1.17% TD, -1.23% .

The total number of lenders targeted by the lawmakers hasn’t been previously reported, nor have most of their identities.

Investigators on the House Financial Services Committee and House Intelligence Committee have focused their early efforts on Deutsche Bank, which has said it in engaged “in a productive dialogue” with the committees.

An expanded version of this report appears on WSJ.com.

Also popular on WSJ.com:

Big news for people who spend hours staring at maps on planes.

Texting moves to the workplace, as do the awkward misfires.