4.Chalkfly

Chalkfly

 

lantzillaviaFlickr

1555 Broadway St. Suite 175

What it is: An online retailer for school and office supplies
Why it's cool: Not only can you get all the school and office supplies you need, but 5% of your purchase goes to support teachers in your community.

Read more: http://www.businessinsider.com/the-coolest-businesses-in-detroit-2013-4?op=1#ixzz2QwDhjYb4