Yn ogystal, mae gennym gwmnïau llwyddiannus sy’n gweithio yn y gadwyn gyflenwi.  Yn eu plith y mae Real SFX, cwmni effeithiau arbennig sy’n gweithio ym mhob rhan o Brydain ac sydd wedi ennill gwobrau BAFTA Craft a BAFTA Cymru am eu gwaith ar Dr Who.  Enghraifft arall yw Andy Dixon Facilities, un o brif gyflenwyr cerbydau cynhyrchu a chynnal ar gyfer y diwydiant teledu a ffilm ac sydd wedi gweld twf mawr yn y blynyddoedd diwethaf.
In addition, we have some successful companies operating in the production supply chain.  These include Real SFX, a special effects company who operate across the UK and who have won BAFTA Craft and BAFTA Cymru awards for their work on Doctor Who.  Another example is Andy Dixon Facilities now a major supplier of production and support vehicles to the television and film industry and who have seen major growth over the last couple of years.