R&D opened its doors in 2018 as Defined Hospitality’s first cocktail bar concept in Fishtown, Philadelphia. The bar’s name, referring to “Research and Development,” is a nod to its ever-evolving cocktail menu, which changes with the seasons and incorporates experimental elements and ingredients.

Its innovative approach to mixology has been recognized by Philadelphia Magazine as one of the best bars in the city. Its lounge-like interior is sophisticated and sleek, with handsome dark wood, leatherbanquettes  seating, and brass accents, and its skilled bartenders are known for their craft and creativity, delivering unique cocktails that push the boundaries of flavor combinations. Upscale and unpretentious, R&D is a favorite for those who take their cocktails seriously.