WhatsApp Contacts Data Scraping

I have a spreadsheet with 9,000 company names and full addresses that now needs its most valuable column: a working WhatsApp number for every single record. Your task is to enrich the sheet, confirm each number is live on WhatsApp, and return the data cleanly formatted.

How you’ll work
• Extract the main phone for each company, primarily through Google Maps, social media pages, the firm’s own website, or any other reliable public source you find helpful.
• Verify the number on WhatsApp using a mix of automated look-ups and quick manual checks—whichever approach gives the highest accuracy in the shortest time.
• For every successful match, create the direct wa.me link so the number can be clicked instantly.

Deliverables
1. A short sample of 5 completed rows so I can review your approach.
2. Final Excel or CSV containing: Company Name | Address | Phone Number | WhatsApp Link.
3. A brief note on any records you could not verify after reasonable effort.

Accuracy is critical: duplicate, inactive or non-WhatsApp numbers will be rejected. If you have experience in data scraping, lead enrichment, and WhatsApp verification tools, this assignment should fit perfectly into your workflow.