Morgan Stanley and other financial groups declined to comment about Mr Trump.
A Trump campaign spokeswoman said the candidate's criticism of Wall Street has been focused on the issues of large political donations and the carried interest loophole, which reduces taxes paid by hedge fund and private equity managers.
"Mr Trump is self-funding his campaign and is not beholden to these big money donors of Wall Street or any other group," the spokeswoman said, arguing that such donations often influence and control " all-talk, no-action politicians".
The spokeswoman added: "The only special interest Mr Trump is beholden to is the American people."
To date, this "outsider" rhetoric has boosted the Trump campaign. He commands 36.5 per cent support in the race for the Republican nomination in a rolling average of polls by RealClear Politics, and enjoys a clear lead in the important New Hampshire primary.
A banker who has worked on Mr Trump's real estate deals said he built good relationships with Wall Street, capitalising on financial professionals' desire for his business. He was also skilled at renegotiating debt deals, taking advantage of banks and hedge funds that wanted to get at least some money back from their investments.
Those skills helped Mr Trump at the time of his first corporate bankruptcy in 1991, which involved the debt-laden Taj Mahal casino in Atlantic City. Although Mr Trump had personally guaranteed at least $900m in Taj Mahal debt, he avoided having to declare personal bankruptcy by convincing the banks, led by Chase Manhattan Bank, to restructure the liabilities.
A year later, Mr Trump's Plaza Hotel in New York filed for bankruptcy. Citigroup stepped in, leading a handful of lenders to buy a 49 per cent stake in the property.
The Plaza was later sold to a group of overseas investors that included Saudi Prince al-Waleed bin Talal, who recently became embroiled in a Twitter fight with Mr Trump over the Republican hopeful's plan to ban Muslims from entering the US.
Mr Trump has also sparred with Wall Street. In 2008, he sued Deutsche Bank and other lenders over a $640m construction loan for Trump International Hotel and Tower in Chicago.
Mr Trump argued the financial crisis prevented him from repaying the loan to Deutsche and Fortress Investment, a hedge fund, in the allotted time.
Deutsche countersued to obtain repayment. The two sides settled in 2010, with Deutsche extending the terms of the loan for five years.
Deutsche's private bank is providing a $170m loan for one of Mr Trump's latest projects, his new hotel in Washington DC. Construction on the Trump International Hotel is due to be completed next year.