University of Göttingen. Spoken languages: German, English and French.
Managing director, Planhaus GmbH, Goettingen, 1976-1979; private practice law, Dusseldorf, Germany, 1986; managing board, Wertgarantie AG, Hannover, Germany, 1986-1988; publisher, Caston GmbH Information, Hannover, Germany, since 1988; partner, Herfurth & Partner, Hannover, Germany, since 1988. Member international committee Chamber of Industry and Commerce, Hannover. Member counsel forum International Law and Trade, Cologne.
Lieutenant Bundeswehr, 1971-1973. Member Association of Young Entrepreneurs (regional president 1990-1992), Young Entrepreneurs of Europe (delegate 1989-1992), Association of Entrepreneurs (regional board directors since 1993).
Married Angelika Otto, April 19, 1984. Children: Carl Constantin, Antonia.