Ambac Financial Group, Inc. revenue for the last year amounted to 99.00 M USD, the most of which — 126.32 M USD — came from its highest performing source at the moment, Specialty Property & Casualty Insurance, the year earlier bringing 64.00 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Ambac Financial Group, Inc. 212.60 M USD, and the year before that — 65.00 M USD.