It is possible to enrich your contacts (when importing a CSV file or by selecting some contacts) owing to the ClearBit integration.
With this integration you can have information like industry or number of employees for your contacts companies.
To do so, you can go in the Data Desk section (in your settings), then on Enrichment and click on the blue message "You must first connect your ClearBit account to use this option".
Then, you can go on https://dashboard.clearbit.com/api and copy / paste the "secret API key" (the first one proposed on ClearBit) on the dedicated slot. Then click Connect ClearBit.
The two tabs Settings and Mapping will allow you to customize your integration. The History tab will show you all past enrichments.