What kind of title is this?: Manga.
Where can I read it?: Reading links are listed for Seven Seas Entertainment, Official Site. Check availability in your region.

Synopsis

About The Dungeon of Black Company

Kinji had it made–a swank apartment, a real estate empire, and enough cash to lounge around living the good life. After a freak magical accident, he washes up in another world, all but enslaved to a crooked corporation. In a fantastical land where money is everything, there’s only one way for an Earthling to get ahead: make your fortune, by any means necessary! Dragons, goblins, and the occasional dubious potion won’t stop Kinji’s quest for the world’s biggest bank account. The Black Company is open for business! (Source: Seven Seas Entertainment)

Comedy Fantasy