Megadodo Publications

Original publishers of that wholly remarkable book, The Hitchhiker's Guide to the Galaxy, the company was headquartered in Ursa Minor, until the offices were abducted by a squadron of Frogstar fighters and brought to the Frogstar, in an attempt to capture and discipline rogue galactic president Zaphod Beeblebrox. These events, however, may all have been the result of a double-psychotic episode suffered by Zaphod, brought on by one too many Pan Galactic Gargle Blasters.

Famously secretive (or destructive) about their financial and historical records, the entire company was later bought out by Infinidim Enterprises.