I found a bug --- when I click on a circle with a number, the map correctly zooms in to the area and shows the companies, but when I zoom out, I am unable to load companies outside of that area, e.g. I clicked on SLC and saw the companies there, but I see no companies outside of SLC when I zoom out.

Nice. I would advise merging the countries 'México' and 'Mexico'. They return different sets of companies.

Here's the website: https://yc.foundersaround.com

This is useful. Thank you.