Korein Tillery’s attorney roster is just 25 strong, but this St. Louis-based firm has racked up an impressive list of wins during the past year. Perhaps the most surprising victory came in the form of a $105 million settlement with Swiss agribusiness giant Syngenta A.G. on behalf of more than 1,000 water systems around the country where the company’s widely used herbicide atrazine turned up.

The chemical, which has been around since the 1950s and often is used to kill weeds in corn and sugarcane fields, has been linked to several forms of cancer and birth defects.