So all the other factions ('Murica Marines especially) are already getting organized into guilds so I was just wondering if there are any existing Orkish ones?
Thinking about starting one later today if there are none out there already.

I fear this all is completely redundant so long as most of use don't even have Beta Access.

Itz simple. Who eva iz biggest an' stompiest warboss gathers all other boyz aroun 'im and begins 'uge Waaaagghh!!

Not sure what you mean, if you mean - Do orks have guilds in the 40k background? - then not really, they have the clans which I am sure you are aware. If you mean-Does the game have guilds, can you make one and has anyone decided on one yet?-Then I would say, I dunno, but if there are I am re making my old warhammer online guild "Badmoons clan" as soon as I can.

I think it will be more something like an ork tribe, where orks from different klanz are united by the authority of a Bigboss or a Warbosss.

Lookz.
So long az I getz to Stomp sum umies, I iz good.
'Sides! Im shoor sum ork needz an Ex-Waagh Boss 'Oos Now a Zoggin' 'ard Mekk!

Well, i think we must see the game and what guild will give us. I think game clans with NPC ih a head will be more cooler

there is Da Lead Blechas if your looking for guild
http://forum.eternalcrusade.com/threads/da-lead-belchas.3813/

DA LEAD BELCHAZ!! wez da biggest and wez da best uz boyz side wit us and wez gonna make sure wez getz da stompin and lootinz right soon

Lead blehcaz, wez got plenty of shootin, choppin, and all around dakka . They even got space for suicidal/homicidal gretchin like me!