Spencer Stuart, a leading executive search and leadership advisory firm, acquired talent‑related businesses from Aon, a British global professional services company. Financial terms were not disclosed. Patrick Hynes, who leads Spencer Stuart’s Leadership Advisory Services, said: “We are pleased to add these capabilities in engagement, leadership development and related advisory services to our noted expertise in leadership and organizational culture. More and more leaders now understand that to win on the outside, you first have to win on the inside."