Despite the increasing interest in the adoption of corporate social responsibility by businesses in a variety of industries, hardly any attention has been paid to the agri-food sector and especially, to the Greek food sector. The agri-food sector has a strong impact on the economy, the environment and the society of each nation. In this light, the purpose of this article is to investigate the largest ninety-eight Greek food companies in dairy, meat, snack, flour & milling and fishing industries about their corporate social responsibility campaigns. A survey has been conducted based on the content analysis of the companies' website. The analysis' results show that companies in the Greek agri-food sector have started to pay attention in CSR strategies with the most portion of their CSR income to environmental campaigns even though the unfolding Greek financial crisis.