ListK is the largest wholesale provider of business contacts to marketing
data companies. We serve 4 of the top 5 data and list companies globally.


Partner Data Licenses

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For our distributor partners, we are open to licensing our data for a low upfront cost plus a revenue share as you sell your lists to your clients.

Custom List Builds

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With advanced research we have the capability to offer direct marketers truly unique custom business email lists.

Business Email Appends

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Add fresh, deliverable B2B email addresses to you list by using our proprietary technology with the highest append rate in the industry.

Business Executive Lists

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Our advanced data compilation methodology offers direct marketers truly unique business list rentals with more depth and accuracy than other sources.

International Lists

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Reach international prospects in over 70 countries. Our global data experts verify every for maximum deliverablility.

Healthcare & Dr. Lists

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Our accurate database of physicians, hospital administrators and other medical professionals is continuously appended and verified.