Family owned and operated since 1990. What has made Gabriella's Pizza such a unique and successful pizza restaurant? It was probably a combination of having the freshest ingredients, competitive prices, and a giant, delicious 3-pound big slice pizza. CEO Gabriella’s quest to create the best pizza started during a culinary apprenticeship in Boston's North End, home to more than 100 authentic Italian eateries. It was here that Gabriella got the idea for the business that would eventually grow to more than 40 locations in Arizona, California, Florida, Massachusetts, and New Hampshire.