So basically if you're wondering about current corps, they're a few current superpowers (in ehh.. different views...)

Seraphin Initiative? or SI I think that's how you spell it.
Leader: ?
SI is a corp that has standards to join, and is a mostly (or all) EU corp, have to be a decent player to get in. English speaking for the most part but they have some who are multi-langual.

Zion TCD
Leader: Zion Shad
Zion has A LOT of members, they were number one for kills and war points (not by much) overall in previous versions of the game, they focus on teamwork and I think they all have mics. English speaking.

Synergy Gaming
Leader: Numbers (not spelled correctly)
Synergy is a team-work based corp that has similar standards to SI, mostly and English speaking corp with quite a few members from the caribbean (god I love those accents) they don't want to set standards high and want to have fun, while still being a decent corp, from my understanding.

Rise of Legion or ROFL
Leader: ?/multiple
This is actually an alliance with several diffrent corps with diffrent objectives for all of them. The most powerful and highest standards of which is Pink.Fluffy.Bunnies but I do not believe that they have corp-battled with anyone outside of their own alliance.

Imperfects
Leader: Omnipotents Zitro
Winner of the beta testers tournament and undefeated in corp matches this is the elite corp of the game. Right behind Zion TCD in kills and warpoints with also the highest real KDR corp, and home to the best assault rifle and infantry in the current game. Imperfects merged with Global Conflict (see globalconflict.enjin.com) earlier in the beta for the beta tourney competition.

SVER TRUE BLOODS (STB)
Leader: QuickGloves
This MAG (google search MAG ps3) based clan is much like synergy gaming in the way of teamwork, having fun, but still remaining a formidable corporation. Part of the EntropyVirus Alliance, (see entropyvirus.com) has decent numbers and fairly decent players.

errr if I forgot anyone lemee know I'll right you up real quick :p

You do realize the game isn't in Open Beta yet, right? They just moved us over to Tranquility. It may be a few weeks from now that they actually open it up completely.

SyN leader: Mavado (Numbz)
Seraphim Initiative leader: Sha Kharn Clone
Hellstorm leader: i think its DJINN Punisher

also i would like to point out that Imperfects currently are number 1 corp but number 2 isn't decided imo because there many good corp haven't matched up against each other yet to decided who is number 2 like SI, PFBz, STB, SyN, TI nad others but nothing is fixed in stone any corp can climb the leader and be number 1 if they truly wanted to.

A. PFBhz fights any and all who are willing to fight them good sir

B. i believe our alliance level ceo is mitauchi since hes the one with the rofl blog

c. its pink fluffy bounty hunterz do a little research on names

SI were actually second on leaderboards for kills and war points (ahead of imperfects) - if ur keeping it factual

STB isn't worth mentioning, get raped 3 games today yo. Never seen any good Hellstorm or Zion players either.

Universal Allies. Deejae's corp.

What about L.O.T.I.S. Betamax, Betamax Beta, Project 9, Tronharder Freegaurd, im sure there are others but these are the corps i see consistently when i play besides the ones already mentioned.