It's a subscription service that you can search for potential customers by geographic location, type of business, business size, etc.
The search works pretty well, it's relatively fast to produce a list and we're generally satisfied.
The only down side is the data is sometimes a bit stale – companies come and go and their mailing addresses change – but often remain in the database for long after their demise.
We do postal mailing to find new customers – our first send is a first class postcard to weed the address list for subsequent standard mail blasts. The undeliverable rate from Infofree is about 15-25% depending on the SIC code we are sending to.
That's probably about the normal rate of bad addresses but it's always disappointing to see all that expensive First-Class mail returned; but it does let us purge our list for subsequent flights.
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