Cold Brew Carts in Boston, MA

Solarium Coffee runs a full mobile espresso bar across Greater Boston and MetroWest, using single-estate coffee roasted in Massachusetts and scratch-made syrups. Owners Ben and Halle handle planning directly and are usually behind the cart on the day. Their pricing is published up front with no surcharges, and they have served MIT, Harvard, the Boston Red Sox, Levi's, Anthropologie, and FIFA. Setup needs a 6x6 ft space and a 15 amp outlet, with a tent and generator available for outdoor events.

$849 for one barista (up to 100 guests), $1,449 for two baristas (100 to 300+ guests)

The Coffee Trike is a self-contained mobile coffee shop built on a custom Dutch WorkCycles trike, rolling since 2012 and named one of Business Insider's 50 Coolest Small Businesses in America. It carries a full espresso bar plus cold brew, hot chocolate, and specialty drinks, with coffee roasted in Somerville and fully compostable cups. They cater corporate meetings, charitable galas, wedding receptions, and open houses anywhere in New England.