Hi, I have assisted young companies for more than twenty years. Valuation, Company Narrative and Financials can be prepared with experience and professionalism by quite a few solid firms.
However, at very early revenue I am not certain paying for a valuation, etc. is worth the money at this time.

It's likely your young company hasn't made enough money or had nearly enough customers to prove demand for your service [proof of concept].

You would be wise to continue to build your customer base and revenue in order to have a shot at convincing investors to invest.