This article deals with the emergence, presence, and gradual transformation of workplace voice in Britain. Britain is an interesting case because it has sustained one of the longest and most prolonged falls in union representation in the Western world. Some have interpreted this as a move away from institutionalized voice by both workers and employers in the face of global product market competition and attendant needs for greater labour flexibility. The article shows that union collective representation has been supplanted by non-union voice in new workplaces and, where union voice persists in older workplaces, it has been supplemented by non-union voice. The absence of formal voice in a significant minority of workplaces can be linked to certain observable firm characteristics, such as size, network externalities, ownership, and age of enterprise. The article defines workplace voice by partially drawing on insights from consumer theory, industrial organization, and transaction-cost economics.