Screenshot from a survey with the question, “Can you name some foundries you’ve purchased font licenses from?” The top answer is Klim (437), followed by Commercial Type (200), Grilli Type (170), Dinamo (144), Lineto (117).
A caveat of this survey is that the respondents are skewed to Klim newsletter subscribers because (from what I can see in my inbox) it may be the only foundry newsletter that shared the survey. Wish others had done the same.
It’s therefore a specific segment of font buyers, but a discerning one!