Several Wall Street banks including JPMorgan Chase & Co. and Bank of America Corp. have held talks to provide as much as $8 billion in financing for a buyout of DocuSign, Inc. (NasdaqGS:DOCU) that values the company at around $13 billion, according to people with knowledge of the matter.

Jefferies Financial Group Inc. and Deutsche Bank AG are also among the lenders considering a role in funding what would be the largest leveraged buyout of the year so far, according to the people, who asked not to be identified discussing the transaction.