Billionaire tech investor Peter Thiel is co-leading a $100 million investment in Provo, Utah-based smart home company Vivint , the company announced Wednesday. This is a personal investment from Thiel, who is best known for cofounding PayPal and his early investments in Facebook and Airbnb. Solamere Capital, a Boston-based private firm that counts former US presidential candidate Mitt Romney as a partner, was the other co-lead.