A startup told me that one of their investors didn't like it that they were selling to newly founded startups, and wanted them to sell to bigger companies, who have more money. If investors tell you this, write them off as idiots. Selling to startups is the best thing you can do.

Sure, startups have less money, but they decide faster, and growth rate is the thing that matters for you, not the absolute numbers. If you have a good enough growth rate, the absolute numbers will take care of themselves.

Plus startups tend to be smarter, less bureaucratic, and more representative of future trends. So as well as giving you faster growth, they're also a better influence on your product.