In 2012, then 19- and 16-year-old sibling entrepreneurs Alston and Brienne Ghafourifar sketched out the future of “people-centric” digital interaction on a napkin. Soon after, Steve Epstein WG96 was captivated by their vision to democratize access to communications, becoming an early angel investor—and, later, the Palo Alto tech startup Entefy’s first employee.

Entefy, now with $15 million in investment, promises to cut through the chaos created by the 100-trillion-plus messages that circulate each year. The company’s inbox-taming artificial intelligence syncs across your favorite devices to help you seamlessly interact with the people, services, and smart things in your life, cleverly scaling communications to your fingertips.

Read more from the Watchlist.