If you're here looking up OneBeacon Insurance customer care, you probably already know who they are. But it helps to get an idea of how big they are and what their support operation looks like if you are a customer. OneBeacon Insurance also goes by or is associated with the names OneBeacon Insurance Group Ltd, OneBeacon Insurance Group. They are considered to be part of the following sectors and industries: Financials, Insurance. OneBeacon Insurance is associated with terms like private, insurance by their customers and industry analysts. They are similar to companies like Delta Dental Insurance, United Concordia Dental, Esurance, CareFirst, Protective Life, HomeServe UK, Blue Cross Blue Shield Association. They employ 1,500 people according to customers in the know.