The Deep RiverRock Belfast City Marathon sponsors 2021

In 2021 the Deep RiverRock Belfast City Marathon is sponsored by Deep RiverRock, Athletics Northern Ireland, Daily Mirror, Belfast City Council, Better, Translink, SPAR, Belfast Live, Decathlon Belfast, Tayto, Cool FM (Downtown Radio and Downtown Country) and Four Star Pizza.   

The 2021 Deep RiverRock Belfast City Marathon and Half Marathon events are organised by Belfast City Marathon Ltd, in partnership with Athletics Northern Ireland, Belfast City Council, the Department of Regional Development, the Police Service of Northern Ireland, NI Fire and Rescue Service, NI Ambulance Service and Translink. 

The Official Charity Partner is Cancer Focus Northern Ireland.