Er bod pob Ardal yn wahanol a bod cyflymder y broses gyflawni wedi amrywio ar draws pob un, gan adlewyrchu gwahanol fannau cychwyn a'u hunaniaeth unigryw, gwnaed cynnydd cadarn ym mhob lleoliad.  Erbyn mis Mawrth 2019, roedd bron i 14,000 o swyddi wedi'u cefnogi ar draws yr Ardaloedd ac roedd buddsoddiad gwerth tua £315m yn y sector cyhoeddus wedi cefnogi amrywiaeth o fuddsoddiadau.  Mae'r buddsoddiadau hynny'n cynnwys sefydlu cyfleuster Canolfan Ymchwil Gweithgynhyrchu Uwch [AMRC Cymru] yng Nglannau Dyfrdwy, creu lle swyddfa Gradd A sylweddol a datblygiadau defnydd cymysg yng Nghanol Caerdydd, datblygu'r M-SParc yn Ynys Môn a'r gwaith yn Eryri sydd wedi helpu i godi'r safle’n un a ddewisir ar gyfer datblygiadau carbon isel newydd.  Yn Ardal Dyfrffordd y Ddau Gleddau mae gwaith wedi dechrau ar Barc Bwyd Sir Benfro. Sefydlwyd rhaglen rhannu prentisiaethau gweithgynhyrchu i annog twf a sgiliau busnes yng Nglyn Ebwy, ac mae wedi bod o fudd i dros 100 o unigolion. Ym Mro Tathan rydym wedi gweld buddsoddiad gan gwmnïau fel Aston Martin ac E Cube, ac ym Mhort Talbot mae gwaith yn parhau gyda phartneriaid allweddol, gan gynnwys yr awdurdod lleol, Prifysgol Abertawe, TATA Steel a'r porthladd i fanteisio ar gyfleoedd yn yr ardal.
Whilst all Zones are different and the pace of delivery has been varied across each one, reflecting different starting points and their distinctive identities, strong progress has been made in all locations.  By March 2019, almost 14,000 jobs had been supported across the Zones and public sector investment of some £315m had supported a range of investments.  Those investments include the establishment of the Advanced Manufacturing Research Centre [AMRC Cymru] facility in Deeside, the creation of substantial Grade A office space and mixed-use developments in Central Cardiff, the development of the M-SParc in Anglesey and the work in Snowdonia which has helped elevate the site as one of choice for new low carbon developments.  In the Haven Waterway Zone work has commenced on the Pembrokeshire Food Park.A manufacturing shared apprentice programme to encourage business growth and skills has been set up in Ebbw Vale and has benefited over 100 individuals.At Bro Tathan we have seen investment by companies such as Aston Martin and E Cube, and at Port Talbot work continues with key partners including the local authority, Swansea University, TATA Steel and the port to capitalise on opportunities in the area.