In San Franscisco area, Agama is good. It's in Fremont. They have good training for Salesforce. Sales Force had good market 2 years ago, i do not know now.
In Irving, Techchamp was good but recently Fed. raided them i think. So try to stay away from Indian/ Nepali consultancies in Irving area.

Try this one: Apex Tech IT Training South Plainfield, NJ