The group conducts business in Massachusetts, New Hampshire, and New Jersey, and writes over $400 million in Direct insurance premium.

[2] As early Dedham, Massachusetts residents were establishing new farms and businesses, it became apparent that the community needed financial protection against various risks such as fire.

In the 1950s, doing business in 26 states, the group constructed its headquarters building at their current address along the Charles River.

After catastrophic events such as Hurricane Andrew, N&D eventually retrenched on its core business and now focuses on general P&C insurance in Massachusetts, New Hampshire, and New Jersey.

[6] In 2020, the company announced it would be reconstructing its corporate headquarters in Dedham, with demolition of their building in the summer of 2020.