All data relevant to the study are shared in the form of an Excel database available from the University of Bath Research Data Archive. The reference for this dataset is: Rickard, E., Ozieranski, P., in press. Data set for “A hidden web of policy influence: The pharmaceutical industry’s engagement with UK’s All-Party Parliamentary Groups (2012-2018)”. Bath: University of Bath Research Data Archive. https://doi.org/10.15125/BATH-00943.