Mae Bargen Ddinesig Bae Abertawe yn cael ei harwain gan Gyngor Sir Gâr, Cyngor Abertawe, Cyngor Castell Nedd Port Talbot a Chyngor Sir Penfro, mewn partneriaeth â Phrifysgol Cymru y Drindod Dewi Sant, Prifysgol Abertawe, Bwrdd Iechyd Prifysgol Bae Abertawe a Bwrdd Iechyd Prifysgol Hywel Dda. Mae’r rhaglen o fuddsoddiadau’n cael ei hariannu gan Lywodraeth y DU, Llywodraeth Cymru, a’r sector cyhoeddus a'r sector preifat.
The Swansea Bay City Deal is being led by Carmarthenshire Council, Swansea Council, Neath Port Talbot Council and Pembrokeshire Council, in partnership with the University of Wales Trinity Saint David, Swansea University, Swansea Bay University Health Board, and Hywel Dda University Health Board. The investment programme is being funded by the UK Government, the Welsh Government, the public sector and the private sector.