Some companies using soon-to-be-disbanded Misuzu Audit Corp. as their auditor are unable to sign up for new auditing firms, raising the possibility they could be delisted if the situation drags on, sources said Saturday.

Many of the companies are listed on stock markets for startups and some have either engaged in questionable accounting practices or remained in the red, the sources said.

As a result, auditing firms that have taken over operations from Misuzu have refused to serve as their auditors.