The following organisations are members of the Greening Arundel network: Arundel Agenda 21, Arundel Bee Project, Arundel Community Orchard Group, Arundel Gardens Association, Arundel Tree Wardens, the Community Apiary, Friends of Priory Pocket Park, Juniper cafe/Chamber of Commerce and Norfolk Estate and Arundel Castle Trustees Ltd. The network is coordinated by a committee representing member organisations, as well as Arundel Community Partnership, Arundel Town Council, Arun District Councillors and staff, the South Downs National Park Authority and West Sussex County Council.