Welcome,
I am native Polish speaker and I would like to help You with your project. Usually I work here as a translator, but I've also finished some projects related to data mining (some of them, because of only 1 tag You used, are invisible for your project). For example one of my last project was to find women's apparel wholesalers in 6 countries. I had to prepare Excel file with important information, such as country, website, email address etc. That project was really specified, can You tell me what kind of companies do You need, all that exist in Poland? Then I could adjust my bid, since now it's completely default. Please also check my feedback on my profile to ensure, that I'm reliable freelancer.
Regards,
Michal