This article surveys previously underexamined American and British intelligence networks that operated in the Netherlands during the eighteenth century and demonstrates the relevance of the eighteenth-century Dutch Republic to the larger history of the Netherlands, early modern Europe, and the revolutionary Atlantic. The Dutch Republic's favourable geographic location, its postal services, its sophisticated press, and its mercantile economy made it an ideal place to extract information and build intelligence networks, shaping power politics in the eighteenth-century British Atlantic. Additionally, this article illustrates how these Anglo-American intelligence networks affected the Dutch Republic and the revolutionary Atlantic. In the late 1770s, American revolutionaries successfully deployed their intelligence network to unleash a propaganda campaign that aimed to convince the Dutch public of their cause. By infiltrating the liberal and sophisticated Dutch printing press, the American revolutionaries not only succeeded in fostering political support among the Dutch public; they also created a transatlantic intellectual exchange with the Dutch opposition that laid the foundations of the Dutch Patriot movement of the 1780s and ultimately the dissolution of the Dutch Republic as a whole in 1795.