[2][5] In 1983, McCullough was the inaugural Chairperson of the North Queensland Sports Foundation.
From 1989 to 1999, he was President of Wheelchair Sports Australia (now Australian Athletes with a Disability).
McCullough put in place a marketing and fundraising strategy that aimed to raise $1.5 million for the team to compete at the 1996 Atlanta Paralympic Games.
[7] Whilst President, he negotiated an agreement with the Sydney Paralympic Organising Committee so that the Federation received $5.5 million for marketing rights over the four years leading to the 2000 Sydney Paralympics.
[2] These financial arrangements coupled with the Australian Governments Paralympic Preparation Program led to the Australian team finishing 2nd on the medal tally at the 1996 Atlanta Games.