ACPO (Association of Chief police Officers) - is a private company
It is for now, but will soon no longer will be, and is hardly comparable to a full commercial Limited Company

"ACPO's limited company status is no longer considered fit for purpose and the current President Sir Hugh Orde has stated publicly his desire to consider alternative structures for the Association.
"Our role is to be the professional voice of the service, willing to talk to anyone with a serious interest in policing, because in senior police officers we have the world class knowledge and experience to explain it best. Against that backdrop it seems clear to me that ACPO's private company status, though adopted for good reasons, is now unhelpful and makes little sense to the public... We are not resistant to ideas about reform: on the contrary, chief officers welcome it."
Sir Hugh Orde Sept 2009
It is:
"The Association of Chief Police Officers (ACPO) is an independent, professionally led strategic body. In the public interest and, in equal and active partnership with Government and the Association of Police Authorities, ACPO leads and coordinates the direction and development of the police service in England, Wales and Northern Ireland. In times of national need ACPO, on behalf of all chief officers, coordinates the strategic policing response."
