Find coverage by US Zip of 40 service providers

I have a list of about 40 service providers from the United States. I need the list of Zip codes where each of these providers is offering a specific service. 25 of these cover less than 10 US states and the rest cover between 10 and 52 states.

This project might be a little more involved than many people realized. The 40 providers are Internet service providers offering different services across the US. I want Zip codes only where they offer Gigabit (1,000Mbps) Internet. This has to be accurate.
I have adjusted budget in recognition of the complexity.