NOA vs AMBC Comparison

North American Construction Group Ltd is Canada's heavy civil construction and mining contractor provider. The company has provided services to oil, natural gas, and resource companies. The Company provides a wide range of mining and heavy civil construction services to customer in the resource development and industrial construction sectors within Canada, the United States, and Australia. The Company's reportable segments are Heavy Equipment Canada, Heavy Equipment Australia, and Other. Heavy Equipment Canada and Heavy Equipment Australia include all of aspects of the mining and heavy civil construction services provided within those geographic areas. Other includes mine management contract work in the United States, its external maintenance and rebuild programs.

Ambac Financial Group Inc is a financial services holding company. It operates in two principal businesses segments: Insurance Distribution and Specialty Property & Casualty Insurance. Insurance Distribution segment includes Managing General Agents, Underwriters and other appointed and delegated underwriting businesses (collectively MGAs or MGA/Us), an insurance broker, and other distribution and underwriting businesses. Specialty Property & Casualty Insurance includes five carriers (collectively, Everspan). Key revenue is generated from Insurance Distribution.