I don't recall hearing of the company (but apparently Directions Media has mentioned it since our logo is on its homepage!), but the president e-mailed me this morning to share this link.
Here's the "about" the company blurb from the website.
MapLarge is the creator of some of the largest Google Maps implementations on the Internet. Our proprietary technology allows us to map more data than anyone else. MapLarge uses patent pending methods to create simple map visualizations from complex data. Our maps scale and withstand extreme traffic spikes. If you would like more information about MapLarge and how we can benefit your project, please email or call us.