Nice work, Here here are some additional tips :) 1. Overlapping markers problem can be resolved in a nicer way 2. markers will look nicer if replaced with ve

Nice work, Here here are some additional tips :) 1. Overlapping markers problem can be resolved in a nicer way 2. markers will look nicer if replaced with vectors (svg) 3. instead of loading all companies to the client side you could load them through ajax and win some performance