A fast-growing Chicago countertop cocktail maker that's catching on with celebrities is opening a new headquarters in Fulton Market.

Bartesian said Tuesday it's opening a nearly 10,000-square-foot office at 452 N. Sangamon St. The new space is more than five times larger than its current headquarters at 303 W Erie St., the company said.

The startup has created a Keurig-like machine for making cocktails. Its capsules can make drinks like an old fashioned, margarita, gin martini or a Long Island iced tea, with each pod offering the appropriate amount of bitters, extracts, juice concentrates and other ingredients needed to make the cocktail. Users provide their own alcohol and simply push a button to make their drink.