When starting a company out of college or within your MBA I highly recommend talking to the entrepreneurship center of your school. Student entrepreneurs usually find a broad offering ranging from mentoring programs to office space to access to business angels and venture capital.

At Harvard, the Rock Center for Entrepreneurship  is doing a fantastic job. No wonder there has been so much entrepreneurship at HBS over the years. But not only at HBS or Harvard, most US educational institutions actually do a lot to promote entrepreneurship not only in classes, but by supporting their students and alumi starting new ventures . Long critiqued for a lack of entrepreneurship education and support for student and academic ventures, more and more German universities have established entrepreneurship centers as well. Pretty good examples I have personally worked with are the Spin-off Service of Ludwig-Maximilians-University in Munich as well as the Entrepreneurship program at Center for Digital Technology and Management, a joint center or Technical University Munich and Ludwig-Maximilians-University in Munich.