Arthur J. Gallagher & Co, a US-based global insurance brokerage and risk management services firm, agreed to acquire BonusDrive, which offers a national automobile voluntary benefit program to channel partners such as employers, associations and insurance companies. Financial terms were not disclosed. "BonusDrive is an attractive strategic addition to Gallagher's existing voluntary benefit offerings," J. Patrick Gallagher, Arthur J. Gallagher & Co Chairman, President and CEO.