Scraped Polish Company Email Database

I need a clean, up-to-date spreadsheet that lists Polish companies at scale. The file must contain three columns only—Company Name, Email Address, and Sector—and total no fewer than 300 000 unique records. Automated web-scraping or API harvesting is the only collection method I will consider; manual research is out of scope.

Please structure the delivery as a single XLSX (or compatible) file. In your proposal tell me:
• how many records you can supply for each sector you intend to cover,
• your total price for the full dataset, and
• the estimated turnaround time.

Data quality matters: I will sample for duplicate domains, obvious syntax errors, and bounced addresses, so plan for basic validation before hand-off.

If this is within your capabilities, I look forward to seeing your sector breakdown and quote.