This research identifies the extent to which individual marketing mix elements are adapted for international markets and how company, industry, and market factors influence the level of adaptation. The study is based on a survey of executive-level managers in U.S.-based companies that market products internationally. The survey obtained information on the extent of adaptation across the marketing mix elements and on company, industry, and market factors that influence this process. The results indicate that adaptation is greatest for distribution, followed by price, promotion, and product. Product adaptation is influenced by market factors, price adaptation is influenced by market and industry factors, promotion adaptation is influenced by market factors, and distribution adaptation is influenced by company factors. The results of the research can be used to both understand and manage the extent of adaptation necessary for products in international markets. © Taylor & Francis Group, LLC.