Even after years of observing Michael Jackson businesses, I have found never mentioned companys related to him.
MJ established "99 Spanish Gate Drive LLC" on February 21, 2008 while staying in Las Vegas. The company's first officer was Michael Amir, MJ's longtime personal assistant. It has been recently taken over by the MJ Estate and shut down.
However the company's exact function is not known, the fact that the entity name refers to Prince Jefri Bolkiah's compound that MJ wanted to buy once tells a lot. The company might be responsible for managing MJ's share in the property (and this would explain the need of "Enchanted Kingdom LLC" to manage this or another property MJ wanted to get). This property is the seventh biggest one in Las Vegas as per the yearly property taxes!
According to the reports MJ moved into this home on July 1, 2007 and rented for about 6 months. Anyways the compound is now owned by the Prince and MJ has nothing to do with it.
On the very same day MJ established another company called "Desert Auto LLC". This company already existed in California since 2006, but it's profile is a complete mystery!
The Nevada entity has been closed down by the MJ Estate, however the Califorina company is still active.