A lobbyist is a professional who seeks to influence public officials and policymakers on behalf of an individual, company, association, or interest group. Their main role is to present arguments, data, and perspectives to support specific legislation, regulations, or policies. Lobbyists act as intermediaries between stakeholders and decision-makers, aiming to shape public policy in line with their clients’ objectives. While often associated with politics, lobbying occurs in various sectors, including healthcare, finance, environment, and technology. In many countries, lobbyists must register and disclose their activities to ensure transparency.