What's the difference between a Series A website and a seed website?

A seed website proves the company exists and the product works. A Series A website sells the company to an enterprise buyer evaluating it against competitors with far more established brands. The information architecture, trust signals, use case specificity, and messaging all need to be calibrated for a CIO or procurement team, not just an early adopter. The design needs to communicate that this is a company operating at a different level than twelve months ago.