This study introduces platform bricolage as an approach for industrial digital platform‐based innovation. Using a rich multiple‐case study design, it examines bricolage‐based modes of practice in the early formation of industrial digital platforms. The focus is on emergent platforms where limited resource recombination is crucial for innovation. Drawing on cross‐case analysis of small and medium‐sized enterprises (SMEs) forming three successful industrial digital platforms, the study derives and explains two core principles underpinning platform bricolage: (1) timely and creative mobilization of limited and heterogeneous resources; and (2) ongoing centrality of the customer within the platform development. By introducing platform bricolage, this study offers insights into collaborative innovation in resource‐constrained environments.