He was appointed consultant in newborn medicine in 1986.

In 1938 he was appointed consultant in plastic surgery to the Royal Air Force.

He was appointed technical consultant of the Toronto Lynx soccer club in February 2005.

In 1988, he was appointed consultant, by Unesco, for research into dance in Africa up until 1996.

He was appointed consultant at St Thomas' from 1972 until his retirement in 2005.

He was also appointed canonical consultant for Pastoral Planning for the diocese at that time.

Fish implemented Civil Service reform by having State Department applicants be required to pass an entry examination before being appointed consultant.

In 1998 he was appointed consultant to the government of the Western Cape and he continued in that role till 2002.

In 1963, Mr. Black was appointed special financial consultant to the United Nations.