[2] The Post Office Branch of the National Association for the Establishment and Maintenance of Sanatoria for Workers Suffering from Tuberculosis Friendly Society[3] was founded in 1905 to help working class Post Office employees control costs of the tuberculosis epidemic when conventional medical insurance was not widely affordable.

The business model of weekly member fees was proposed by a Post Office clerk, Charles Garland.

In June 2012, delegates at Benenden Health's annual conference in Manchester voted to remove restrictions on membership.

It is also one of a national network of 26 hospital facilities at which Benenden Health can authorise surgical and other treatment procedures.

[7] In January 2013, Benenden Health began their sponsorship deal with York City Football Club.