Does anyone use "The Adventurers' Guild"?

[delericho]

This, but when you look at all those guilds and organizations as a whole they pretty much add up to an adventurers' guild only spread out all over the place.

Yep... mostly.

The one big advantage of breaking it up like that is that multiple factions means multiple agendas, and potentially conflicting agendas. So if Bob the Fighter's mercenary company comes into conflict with Alice the Wizard's college of sorcery, that generates, or at least adds spice to, an adventure.

(And I'm presuming that's more or less why the 5e products have five factions rather than just associating the PCs with the Harpers and having done.)

 

[TarionzCousin]

Monte Cook had the Delvers Guild in his Ptolus campaigns. He published info about it here: http://www.drivethrurpg.com/product/25533/Secrets-of-the-Delvers-Guild?it=1

 

[Grakarg]

Not normally, but for the current campaign I'm running I do (sorta)!

All PC's are members of the "Imperial Merchant Adventurer's Company", and its a hexcrawl campaign focused on early colonization, exploration, and typical derring-do!

The organization is inspired by the real world Company of Merchant Adventurers of London (est. 1407) and Company of Merchant Adventurers to New Lands (est 1551).

Names so great, I clearly had to use a version of them.