Arthur J. Gallagher & Co completed the acquisition of Dion Leadership.

Arthur J. Gallagher & Co, a US-based global insurance brokerage and risk management services firm, completed the acquisition of Dion Leadership, a provider of leadership coaching and development consulting services. Financial terms were not disclosed. "Dion Leadership's strong client relationships and expertise in leadership and organizational development solutions will expand our capabilities in the executive consulting space. I am delighted to welcome Steve and his associates to Gallagher," J. Patrick Gallagher, Jr., Arthur J. Gallagher & Co Chairman and CEO.