Airbus UK Broughton, Bangor City, Caernarfon Town, Connah’s Quay Nomads, Llangefni Town, Newtown, Porthmadog, The New Saints and Welshpool Town have so far been pencilled in.
They join the likes of Cymru Alliance outfits Prestatyn Town, Llandudno Town and Holyhead Hotspur in the proposed competition.
Bay chairman Andy Owens said: “A reserve team is something we would like to have as part of our development plan and we have expressed interest in the league, assuming it is right for the club in the form proposed.”
Bangor boss Neville Powell told an exclusive Daily Post webchat earlier this month: “We have got a talented bunch of youngsters and I hope they are the Bangor City of the future.
“Let’s hope the Welsh Prem sort out a league for them.”
Under initial plans the league would be split into three divisions – Eastern, Central and Western.
An FAW meeting next month will discuss the plan, which is expected to meet opposition from leagues further down the North Wales pyramid.