BCL
Engineer
I guess it's rail related since the next phase involves extending Caltrain (and possibly California HSR) to the terminal.
http://www.sfchronicle.com/bayarea/article/Salesforce-buys-naming-rights-to-Transbay-Transit-11274011.php
http://www.sfchronicle.com/bayarea/article/Salesforce-buys-naming-rights-to-Transbay-Transit-11274011.php