Aon Hewitt can be contacted by calling the head office of the parent corporation, Aon plc, on 020 7623 5500. Give them a ring to speak to a representative who can answer your question.
Aon Hewitt, formerly Hewitt Associates, is a human resources and outsourcing solutions provider and a subsidiary of Aon plc. Its current headquarters are in Lincolnshire, Illinois.
The company provides advice and solitions relating to human resources. From recruitment to retirement, Aon Hewitt can help you and your company meet your human capital needs.