This definition is used by a number of government agencies and private organisations including:
- Welsh Government
- South West Wales Economic Forum (SWWEF) 
- South West Wales Integrated Transport Consortium (SWWITCH)
- South West Wales Tourism Partnership (SWWTP)
- West Wales Chamber of Commerce (WWCC)
A different definition is used in the EU Nomenclature of Territorial Units for Statistics, which refers to South West Wales as a subdivision of West Wales and the Valleys comprising Carmarthenshire, Ceredigion and Pembrokeshire.
- "South West Wales News - BBC News". BBC News.
- Welsh Assembly Government - Tourism to South West Wales
- South West Wales Economic Forum
- "玄人好みのあおぞら銀行". www.swwitch.net.
- South West Wales Tourism Partnership
- South West Wales
- West Wales Chamber of Commerce Archived 2009-08-31 at the Wayback Machine
- "Geography - NUTS: Wales: Directory".
- One Big Garden (gardens and parkland in South West Wales)
- Visit Wales: South West Wales
- Inspirational South West Wales
- Wales.com: south west Wales