to which company has he served as the second mentioned position?
Firestone
Wendell Willkie
 where he was initially employed by Firestone, but left for a law firm, b
who is wendell willkie? American lawyer, corporate executive and the 1940 Republican nominee for President of the United States
wiki:19668902
Wendell Willkie [SEP] Introduction
He served in World War I but was not sent to France until the final days of the war, and saw no action. Willkie settled in Akron, Ohio, where he was initially employed by Firestone, but left for a law firm, becoming one of the leaders of the Akron Bar Association. Much of his work was representing electric utilities, and in 1929 Willkie accepted a job in New York City as counsel for Commonwealth & Southern Corporation (C&S), a utility holding company. He was rapidly promoted, and became corporate president in 1933. Roosevelt was sworn in as U.S. president soon after Willkie became head of C&S, and announced plans for a Tennessee Valley Authority (TVA) that would supply power in competition with C&S.