Were you able to find the right Providers within google-maps ? If you're also a provider of google-maps and you're not featured in the business directory yet, you can always Add an entry for free.
The results list for google-maps in Waltham. You can find the best google-maps vendors and providers in Waltham in the Waltham Business Directory. Currently there is no company is registered in the Waltham business directory under google-maps.