C-level

noun[before a noun]1

1. •
   The highest-ranking executives of an organization, who have the word chief in their titles: CEO, COO, CFO, etc.

   • I am seeking a position at the C-level.
   • “Executives Are Quitting to Spend Time With Family … Really”, in New York Times, 16 February 2022: “Chief executives, chief financial officers and other C-level executives are walking off the job, too.”