Here is a list of in-game organizations that players may officially join in addition to being part of an alliance. You may be a part of any number of organizations, so long as you aren't violating their restrictions. The catch is that you have to buy a skill point for each organization you join, so most only join one at most. Which organization you are a part of should be listed on your character sheet. You may leave an organization at any time to join a different one, but you may incur a bounty or other temporary penalties.

All organizational perks are lost when a member leaves an organization.

Keep in mind that organization benefits may be expanded upon in the future.

Note that organizations and their benefits are being modified for ADBZ 6. You may still join them, if you wish.

Galactic Patrol
Theme: Good/Lawful organization bent on ridding the galaxy of evil.
Requirements:
Benefits:

Saiyan Empire
Theme: Evil/neutral org dedicated to serving the King and doing what's best for the empire with a penchant for physical attacks.
Requirements: Must be a saiyan. Hybrids may join, but some benefits are only accesible to full blooded saiyans.
Benefits:

Planet Trade Organization
Theme: Chaotic/evil organization that places profits over everything else. They raid planets and enslave people, so a large part of their emsemble is stolen tech.
Requirements: Anyone can join, but leadership roles and some benefits are reserved for full blooded Changelings.
Benefits:

Fallen Empire
Theme: Chaotic neutral, Glind based do anything for the 'greater good' of destroying the kaioshin.
Requirements:
Benefits:

Scholars
Theme: Good/neutral students of the universe, ki, and the unoffical legacy of the Lost. Androids tend to join them in order to access the rare technology they have to offer.
Requirements:
Benefits: