"One World Advertising
is an internationally aware organization established by C. Elliot Friday
for the purpose of monitoring out planetary advertising environment and developing strategies for its improvment."
That's the official line from their essay "A Proposal to Coke and Pepsi" included in the original release of Negativland's album Dispepsi. For said album, they granted Negativland the use of their apparently extensive archives.
For more information, consider contacting firstname.lastname@example.org.