Edelman is naming a new U.S. CEO, Lisa Osborne Ross, who will become the first Black woman to lead a PR firm of this size, which has $540 million in U.S. revenue, 13 offices and more than 2,300 employees across the country. Ross, formerly the U.S. chief operating officer, takes up her new post May 3. She will report to Matthew Harrington, global president and chief operating officer. Edelman’s current U.S. president and CEO, Russell Dubner, has been named global vice chairman and chair of the newly formed Edelman Trust Institute.