He left Prime in 2004 to work with Hunter New England Area Health Service as a communications and business development manager.

[8] Anderson was a director of Centreboard Media, a local public relations and marketing consultancy with experience in events such as the Tamworth Country Music Festival.

[9][10] Anderson has been active in community groups in the region, including Westpac Rescue Helicopter, the Salvation Army, the St Nicholas School Board, and Ronald McDonald House in Tamworth.

In a first initiative for the Nationals, Anderson was endorsed following a plebiscite where 4,293 local people voted from a pre-selected field of four candidates.

[7] On 9 June 2023, Anderson was granted retention of The Honourable title by the Governor for life, for having served as a Member of the Executive Council for more than three years.