The firm name pays homage to Henry Laurence Gantt; teacher, mechanical engineer, management consultant and the forefather of project management.
Gantt's scheduling and management instruments were used for ship building during World War I, the construction of the Hoover Dam during the Great Depression, and the construction of the United States Interstate Highway Network in the 1950s.
Gantt authored two books on the topic, and in the 1910s developed the scheduling and monitoring diagram, now called Gantt charts.
Used ubiquitously across industry and manufacturing, Gantt charts provide an easy, visual data display on project planning and progress.
Gantt initiated the "task and bonus" wage method, wherein workers are paid a regular wage for time worked, and also paid an additional bonus if their labour exceeds productivity targets.
He is the namesake of the annual Gantt Medal, awarded since 1929 by the American Society of Mechanical Engineers for "distinguished achievement in management and for service to the community".