Billionaire Personal Email & Phone Research

I have a spreadsheet containing the names of 3,172 billionaires but no contact details at all. My first priority is to secure verified personal email addresses for each person. Wherever possible, please also add their work-related emails and direct phone numbers, yet the personal email or work email is the non-negotiable data point I need.

You are free to pull from any reliable resources—ZoomInfo, Lusha, RocketReach, Swordfish, Hunter, LinkedIn Sales Navigator, press releases, family-office websites—so long as the final data is accurate, current, and legally obtained. Bounce rates must stay very low; anything above 5 % will be rejected.

When you reply, reference past work where you have successfully located hard-to-reach or high-net-worth contacts, showing the volume handled and the accuracy achieved. A concise example of a previous enrichment project carries more weight with me than a long pitch.

Deliverable:
• The original list returned as an Excel or Google Sheet, now populated with personal email, work email (if found), and direct phone number columns, plus a source/verification note for each entry.

I will review a small test sample first; once its accuracy is confirmed, the remaining records can be completed in agreed milestones.