In the context of the ongoing industrial digitization, location-based services (LBS) can play a key role in improving internal company workflows and processes and the associated supporting activities. A lack of standardized indoor-positioning technologies and complex integration with the existing infrastructure are two of the main barriers for the implementation of LBS. In this paper, we present an approach for the design of industrial indoor LBS or (I²LBS), which supports companies during the early design and planning phase, taking into account their unique prerequisites.