My non-tech business plan is capital asset intensive (at least $25M), but needs the asset to generate revenue. A related company is worth billions at this time. Almost all the pointers on the web are all about tech start-ups.
It sounds like you are seeking capital (as you state that you will need at least $25M) or seeking advice on who to talk with in order to raise capital.
I think that this will be a relatively hard venture to raise capital for. In that range - and given that it is non-tech probably you should talk to private equity funds with experience in related fields.
My guess is you will have a hard time to get equity or debt financing without collateral for that amount starting from standing still. Unless you have a history of success or a rich uncle.
There are many different funding sources (government, private angels, VC's, banks, crowdfunding) - there may be very few are available for something like you initially describe.
Capital intensive - and also a service business.
