Equastone is a real estate investment advisor company, headquartered in San Diego, California.
Equastone owns the following skyscrapers:
It also owns several other high-rise and smaller office buildings in Texas, Colorado, Arizona, Nevada, California, and Oregon.
As of April 2009, the Equitable Building is in foreclosure, a month after its River Place Corporate Park office complex in Austin, Texas did the same.
References
Equastone Wikipedia(Text) CC BY-SA