I don't think Buzz counts, they didn't go bankrupt.
Both Swiss and Brussels Airlines (they've dropped the SN! now) were existing airlines (Crossair and DAT) who 'obtained' valuable operating rights, etc. after their countries former national airline went out of business.
I'm looking for a company that ceased all operations and their previous name and livery came back into existence (one way or another) somehow.
Should Swiss adopt the name SWISSAIR, they would qualify.