The wave of organizing at coffee shops across the United States isn’t slowing down. In the Boston metro area, it’s becoming hard to find a café that isn’t in the process of unionizing.

It isn’t just Starbucks, though at least four of the company’s Boston-area locations are unionizing. In the past year, the following independent coffee shops have also organized: Darwin’s Ltd, a café with four Cambridge locations; Pavement, a café with eight locations spread across Boston and Cambridge; Diesel Café, Bloc Café, and Forge Baking Company, which share ownership and are located in Somerville. All of those shops are organized with the New England Joint Board of UNITE HERE.

While the stores are small, the organizing constitutes a massive shift for the industry, where unionization was practically unthinkable just a few years ago.