Slack CEO Stewart Butterfield and Away President Jen Rubio announced on Monday that they were engaged. There are several other leaders in the tech industry who are dating — and married to — prominent venture capitalists, models, athletes, and powerful people. These are 15 of the most powerful couples in tech. Visit Business Insider's homepage for more stories. As the singer Grimes, Tesla CEO Elon Musk's maybe-paramour, might say: We appreciate power.