He was Chief of the Statistical Engineering Laboratory (SEL), Applied Mathematics Division of the National Bureau of Standards (NBS).
Churchill Eisenhart was brought to the NBS from the University of Wisconsin–Madison in 1946 by Edward Condon, Director of the NBS, to establish a statistical consulting group to "substitute sound mathematical analysis for costly experimentation."
He was allowed to recruit his own staff and, over the years, he brought many notable and accomplished statisticians to SEL.
He retired in 1983 after which he formed the Standards Alumni Association, which he headed until his death in 1994.
Eisenhart was honored with an Outstanding Achievements Award of the Princeton University Class of 1934 and with Fellowships in the ASA, the American Association for the Advancement of Science, and the Institute of Mathematical Sciences.