The company announced today that current chief financial officer Chris Whiteside has been appointed as acting CEO while permanent replacement for Hyldager is found.

No reason was given for Hyldager’s abrupt departure. ISS said that he would serve a period of gardening leave while assisting with an orderly handover.

“The ISS Board thanked Captain Claus Hyldager for his invaluable contributions to ISS over the past twenty years, including nine years as CEO,” said ISS.

ISS