Arthur J. Gallagher & Co, a global insurance brokerage, risk management and consulting services firm, completed the acquisition of Erimus Group, an established retail insurance broker with a strong presence in the North East of England. Financial terms were not disclosed. "We are delighted to welcome the Erimus team to Gallagher. This business is a great fit with our UK retail operations and provides us with a fantastic opportunity to expand our regional presence in England. We look forward to working with Paul and his colleagues to expand their service offerings," J. Patrick Gallagher, Jr., Chairman, President and CEO.