Infofree

If you are looking for mailing lists this is a good place to start.

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.