Which U.S. insurer, founded in 1875, uses the Rock of Gibraltar as its famous symbol?

The U.S. insurer founded in 1875 and associated with the Rock of Gibraltar is Prudential Financial.

Prudential was founded in Newark, New Jersey, by John Fairfield Dryden. Its original business focused on life insurance, including affordable industrial policies designed for working-class customers and often collected through home visits.

The company adopted the Rock of Gibraltar as a symbol of strength and security in the late nineteenth century. The advertising phrase “The Rock” became closely associated with Prudential, although the company’s formal corporate name is Prudential Financial.

Prudential Financial should not be confused with Prudential plc, the British financial-services group. They are separate companies with different corporate histories and home markets.