Solution for Mapping Addresses

[Eric Stafford]

Greetings all.

I have a commercial tenant who is looking for properties within a mile from a specific competitor and is also outside of 5 miles from any of their own current locations.  I have a list of addresses for both the tenant and the competitor in RI, MA, and NH. 

What kind of solutions are out there for me to be able to upload both sets of data and map them out so we can begin to search for any properties that satisfy that criteria?

Ideally, I'm looking for something scalable incase future requests like this come along for other commercial tenants. Otherwise I'd just take the few hours it be to print out a large map and thumbtack the locations manually. 

Thanks in advance.

Eric