April 28, 2020 Tech Blog 48 — Teal & Tristan Cooper — Founders of VendiBean April 28, 2020 Tech Blog Fresh Brewed Tech Teal & Tristan Cooper are the co-founders behind VendiBean, a barista at the touch of a button. The startup’s sleek coffee vending machines can be found in various locations, like college campuses, hospitals, and offices.