UPI

UPI, or United Press International, is a news wire service based in the United States, providing coverage of national and world news, politics, business and other current affairs. Its stories are read directly on its website and are also distributed to other news outlets that carry its wire coverage as part of their own reporting, extending its reach well beyond its own site and its direct readers.

Its ads.txt file lists 73 ad systems, 67 selling ad spots directly and 36 through resellers, indicating a largely direct-sold path into the site's ad spots.