Over the past 20 years, professional service firms (PSFs) have come to look a lot like their clients. Many, now corporations themselves, operate in multiple countries and have hundreds—even thousands—of employees. A small cadre of principals sets direction, while professional administrators impose budgets and other financial controls. Functions that were once deemed integral, such as research, are outsourced or delegated to paraprofessionals. The firms’ proprietors, meanwhile, have overcome their qualms about advertising their services, not to mention themselves.