Frederick Winslow Taylor
As Arthur D. Little focused on technical research for the first few years, the first management consultancy was started by Frederick Winslow Taylor, who in 1893 opened an independent consulting practice in Philadelphia. His business card read "Consulting Engineer – Systematizing Shop Management and Manufacturing Costs a Specialty". By inventing Scientific Management, also known as Taylor's method, Frederick Winslow Taylor invented the first method of organizing work, spawning the careers of many more management consultants. One of Taylor's early collaborators, Morris Llewellyn Cooke, for example, opened his own management consultancy in 1905. Taylor's method was used worldwide until industry switched to a method invented by W. Edwards Deming.