Drucker developed an extensive consulting business built around his personal relationship with top management. He became legendary among many of post-war Japan's new business leaders trying to rebuild their war-torn homeland. He advised the heads of General Motors, Sears, General Electric, W.R. Grace and IBM, among many others. Over time he offered his management advice to nonprofits like the American Red Cross and the Salvation Army. His advice was eagerly sought by the senior executives of the Adela Investment Company, a private initiative of the world's multinational corporations to promote investment in the developing countries of Latin America.