AresManagement LP and Apollo Investment Corp. have each expressed interest toacquire 's assets,Reuters reported April 28, citing "people familiar with the matter."

Interested parties in American Capital's auction alsoinclude Fortress Investment GroupLLC and BlackstoneGroup LP, according to the report.

In January, American Capital announced that its boardcompleted the initial phase of its strategic review process and authorized thecompany to proceed with soliciting offers to buy the company or its variousbusiness lines in whole or in part.

The companies refrained from comment, the news outlet said.