Cigna was formed in 1982 by the merger of the Connecticut General Life Insurance Company (CG) and the Insurance Company of North America (INA).
INA was the first stock insurance company in America and was founded in 1792. INA is considered to be the ancestor of Cigna. CG was created in 1865 by a special act of the Governor of Connecticut.
In the late 1990’s Cigna had one of the largest international networks in the traditional insurance market. However, the company sold its property and casualty business to ACE Insurance in order to concentrate on its core business.
In 1997 Cigna sold most of its life insurance operations to Lincoln National Corporation.
In 2011 Cigna acquired HeathSpring Inc for $3.8 billion to jump start its business selling medicare plans, growing its numbers from 46,000 to 400,000 Medicare Advantage members.
Today Cigna and its subsidiaries are major providers of medical, dental, disability, life, and accident insurance and related products and services. Cigna operates in 30 countries, has over 35,000 employees, and had $29.119 billion in revenue in 2012.