Seed giant Monsanto has been named in Corporate Responsibility (CR) Magazine's 2010 list of 100 Best Corporate Citizens for the third year in a row.

Monsanto ranks No. 31 overall and leads the agricultural products sector on the magazine's 11th annual ranking of corporate responsibility performance of major US companies.

Jerry Steiner, executive vice-president, sustainability and corporate affairs for Monsanto, said: "Monsanto is honored to be recognised among the '100 Best Corporate Citizens' for our leadership in such important areas as climate change and employee relations. As an agricultural technology leader, we strive to deliver products that benefit farmers and the global communities they serve, while protecting the environment. This ranking is a testament to the Monsanto employees who carry out this mission with integrity and ingenuity every day."

First published in 1999, the 100 Best Corporate Citizens list ranks large-cap Russell 1000 companies based on publicly available information in seven key categories: Environment, Climate Change, Human Rights, Philanthropy, Employee Relations, Finance and Governance.

Monsanto has been included on CR Magazine's list since 2008. This year, Monsanto improved its score in the areas of climate change and employee relations.