Ambac Financial Group, Inc. revenue for the last year amounted to 78.00 M USD, the most of which — 144.00 M USD — came from its highest performing source at the moment, Legacy Financial Guarantee Insurance, the year earlier bringing 451.00 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Ambac Financial Group, Inc. 65.00 M USD, and the year before that — 41.00 M USD.