A deeper understanding of digital constitutionalism and valuable insights to consolidate it may be achieved by examining historical examples that illustrate how various actors and power structures were brought under constitutional control in the past. Employing comparative historical analysis, we turn to three key historical moments when constitutionalism confronted challenges from powerful non-state actors, drawing parallels with the rise of digital platforms: the East India Company, the Papacy and feudal lords. By examining how constitutionalism was ultimately imposed upon these powers, we offer novel perspectives on the challenges posed by digital powers and propose long-term strategies that could make digital constitutionalism prevail.