Uno Pizzeria & Grill, commonly known as Uno's, is an American restaurant chain that specializes in Chicago-style pizza. It was founded by Ike Sewell and Ric Riccardo in 1943 in Chicago, Illinois. Sewell and Riccardo wanted to introduce deep-dish pizza to Chicagoans, and they opened Pizzeria Uno, the flagship location of Uno's, which quickly became a local favorite.

As of now, Uno Pizzeria & Grill's headquarters is located in West Roxbury, Massachusetts. The company operates over 110 locations across the United States, with a strong presence in the Northeast and the Midwest. The headquarters houses the corporate team responsible for overseeing the chain's operations and expansion.

Uno's main products are deep-dish and thin-crust pizzas, which come with a variety of toppings and flavors. They also offer a wide range of appetizers, salads, pasta dishes, burgers, and sandwiches, catering to different tastes and preferences. Uno's is particularly known for its signature dish, the Chicago Deep Dish Pizza, which features a thick crust filled with layers of cheese, sauce, and other ingredients.

In terms of its global operations, Uno's has not expanded extensively beyond the United States. However, the company has been operating international locations in countries like South Korea, the United Arab Emirates, and Honduras through franchise partnerships. These international ventures have played a role in introducing Uno's unique style of pizza to new markets.

Uno Pizzeria & Grill holds a significant market position in the United States, particularly in the deep-dish pizza segment. Although it faces competition from other pizza restaurant chains, such as Domino's, Pizza Hut, and Papa John's, Uno's distinctive Chicago-style pizza sets it apart from competitors and has contributed to its success. One noteworthy event in Uno's history was its acquisition by the private equity firm, The Bravo Brio Restaurant Group, in 2002.

This acquisition provided financial stability and resources for Uno's to expand its footprint and enhance its brand. As of the latest available information, Uno Pizzeria & Grill continues to operate and serve its customers across the United States. However, there may be recent updates or changes that are not captured in this description