Shelley Taylor’s organization RefAid is among them. A veteran tech entrepreneur, Taylor wants to make a profit. But she also wants to help people. And so she put her considerable know-how to work to develop an app designed for migrants and refugees who want to find various social services in countries where they’re located or to which they’re headed. Privately funded by Taylor and operating on servers supported by her company, Trellyz, RefAid is now in its fourth year, and grows largely by word of mouth.