The objective of this paper is to investigate climate change awareness and mitigation effort and their associated motivating and limiting factors to pro-environmental behavior and firm demographics in small and medium-sized enterprises (SMEs) in Switzerland. For this purpose, a questionnaire was developed, conducted, and analyzed on motivating and limiting factors along with firm demographics, using descriptive statistics and ordinary least squares (OLS) and ordered probit regression models. The results show that Swiss SMEs are in general aware of climate change and (...) their resulting consequences. SMEs have taken steps to help mitigate greenhouse gas emissions through recycling, reduction of energy and water consumption, and use of recycled packaging. SMEs could however improve their environmental impact through low-carbon means of transport and use of public transport, sustainable raw material inputs, sustainable energy sources, and setting environmental goals and audits. There was a positive association between climate change awareness and mitigation. Motivating factors to pro-environmental behavior included financial advantage and responsibility towards the environment, while firm size and human resources were limiting factors. Lastly, different mitigation measures might be influenced by different motivating and limiting factors including financial advantage and pressure from interest groups, as well as firm size. (shrink)