Research on the influence of industry on chemical regulation has mostly been conducted within the framework of the production of ignorance. This special issue extends this research by looking at how industry asserts its interests––not just in the scientific sphere but also at other stages of policy-making and regulatory process––with a specific focus on the types of tools or instruments industry has used. Bringing together sociologists and historians specialized in Science and Technology Studies (STS), the articles of the special issue study the arenas in which instruments and practical guidelines for public policy are negotiated or used. The aim is to observe the devices in the making or in action, from the selection of actors to the production of thresholds, criteria, and other technical regulations. The introduction highlights how industry influence on expertise and regulation is undoubtedly far more pervasive and multifarious than has been conceptualized to date by social scientists. Putting this issue back at the heart of both the STS and social sciences research agendas is increasingly urgent and could lead to new inquiries able to highlight these logics even more widely, using fresh empirical examples.