More than a quarter of chief financial officers, treasurers and mergers and acquisitions bosses quizzed said they had lost trust in the banks, mainly due to fears of insolvency.
But they blamed the institutions themselves, rather than the bankers.
Many remain satisfied with their bankers and their ability to provide analysis and support, the survey from Dow Jones found.
The most important factor considered when choosing a bank was the relationship with the bank and the bank’s commitment to the customer, the study showed.
JP Morgan came out on top for debt and equity capital markets and M&A.
Deutsche came second for debt and equity capital markets while Goldman Sachs was number two for M&A.
Adam Smallman, global managing editor for investment banking, Dow Jones, said: “Banks may need to be more flexible and provide increasingly tailored services to attract and retain clients.
“Building a deeper, more knowledgeable relationship with clients may help to bring back trust at the institution level.”
One third of those surveyed said they were experiencing difficulties accessing capital although the majority said it was “easy”.
But access to credit is more difficult with tougher terms and transaction fees on the rise.
More than 220 chief financial officers, treasurers, and heads of mergers and acquisitions and debt capital markets were surveyed.