Singapore Business Data Collection

I am assembling a fresh, accurate database of companies operating in Singapore and I need your research skills to make it happen. The core data points I must receive for each record are:

• Company name
• Company-wide or decision-maker email address
• Company owner (when that detail is published; if it is not publicly available, simply leave the field blank)

Scope
– Size is not a limitation; small firms, mid-sized outfits, and large corporations are all in play.
– Your primary hunting ground will be reputable business directories as indicated, though I am open to any additional public source that keeps the file current and compliant.
– Only Singapore-registered entities should appear in the list.

Deliverable
Provide a clean, deduplicated spreadsheet (Excel or Google Sheets) containing at least the three columns noted above. Every email must be valid and checked for syntax; bounced or obviously fake addresses will be rejected.

Acceptance criteria
1. Minimum 95 % email validity rate when spot-tested.
2. No duplicate companies.
3. File delivered on or before the agreed deadline.

If you have prior experience scraping or manually compiling Singaporean business directories and can demonstrate a solid verification workflow, I would love to see a short sample—say 10 companies—to confirm format and depth before you proceed at scale.