Many have rooted their businesses in big cities with immigrant populations large enough to insulate them from everyday situations that demand English. After gaining traction in their own communities, they have used the tools of modern communication, transportation and commerce to tap far-flung resources and exploit markets in similar enclaves around the country and the world.
“The entire market is Hispanic,” Mr. Sanchez said of his business. “You don’t need English.” A deal, he said, is only a cheap long-distance phone call or a few key strokes on the computer away. “All in Spanish,” he added. Immigrant Entrepreneurs Succeed Without English – NYTimes.com.