Do you know any social entrepreneurs in the Bay Area who would like to speak to a group of high schoolers?

My dear friend is an English teacher at a charter school in East Palo Alto (a rough neighborhood). For the last three weeks of the year, she’s having her kids work on a final project around the topic of social entrepreneurship/social enterprise. She says the kids are really excited by the topic, and she’s looking for people working in the space to come and speak with her class about their experience. Do you know anyone who might enjoy doing this?