You don't mention what B and C are doing exactly, without which is hard to know the true value of your labor in relation to theirs. What is sales and support ex

You don't mention what B and C are doing exactly, without which is hard to know the true value of your labor in relation to theirs. What is sales and support exactly (are they getting new contracts, are they generating revenue, etc)? What is the product owner doing at such an early stage? I always count the technical founder of a SaaS or tech startup as at least equal to the business people, and oftentimes more, because most business people cofounders are just people with ideas and no actual talent in procuring and securing funds.