Founded 1993, Opus Investment Management is a registered investment advisory firm that manages more than $7.3 billion in assets and is based in Worcester, Mass. It provides investment management services and solutions to insurance companies, foundations and endowments, public and corporate retirement funds, pension plans and other institutional investors. It offers a wide range of services, such as research analysis and portfolio and risk management. The company s portfolio development process includes security selection, valuation assessment, and portfolio construction and monitoring. It is a wholly owned subsidiary of the Hanover Insurance Group, a holding company for a group of insurers. The company offers a wide range of property and casualty products and services to individuals, families and businesses through a network of independent agents.