How to Massively Enrich LinkedIn Data with Mobile Phone Numbers

The Scenario

You successfully scraped LinkedIn data using Evaboot, Captain Data, PhantomBuster, TexAu, or another extraction tool. You have a CSV with names, titles, companies, and LinkedIn URLs.

Now you need direct mobile phone numbers.

The traditional approach: look up each profile individually. For 500 contacts, that’s hours of manual work.

The Datagma approach: upload your file, get it back with mobile phones added, in under 2 minutes.

Step-by-Step: Bulk Phone Enrichment from LinkedIn Data

Step 1: Prepare Your CSV

Your CSV should have at least one of these columns:

• LinkedIn Profile URL (preferred — highest match rate)
• Full Name + Company Name (alternative)
• Email address (alternative)

Clean any obvious formatting issues before uploading.

Step 2: Upload to Datagma File Upload

1. Log into app.datagma.com
2. Go to File Upload
3. Upload your CSV file (up to 50,000 rows)
4. Map your columns to Datagma’s fields (LinkedIn URL, name, company)
5. Select Phone Enrichment as the enrichment type

Step 3: Download Your Enriched File

Datagma processes your file and adds:

• Direct mobile phone number (not a landline or switchboard)
• Confidence score for each number
• WhatsApp status — whether the number has an active WhatsApp account

Standard files return in 2–5 minutes.

What to Expect: Match Rates

Phone enrichment match rates depend on:

• Geography: US, UK, DACH, and Nordics have the highest coverage; France is excluded due to local data regulations
• Seniority: C-level and VP contacts are slightly harder to find than mid-management
• LinkedIn data quality: profiles with more information have higher match rates

Expected match rates:

• US professionals: 35–50%
• Western Europe: 25–40%
• India and APAC: 20–35%

These are conservative estimates. Datagma consistently outperforms Lusha and Apollo in mobile-specific coverage in independent benchmarks.

Why Mobile-Only Matters

Datagma only returns direct mobile numbers — never landlines or company switchboards.

This is critical because:

• A switchboard number requires you to go through a gatekeeper
• A landline may reach the reception desk, not the person
• A direct mobile bypasses every layer of filtering

If we can’t find a direct mobile, we don’t charge you.

API Option: Enrich in Real Time

For ongoing workflows, use the Datagma API to enrich LinkedIn profiles in real time:

GET https://gateway.datagma.net/api/ingestion/v2/phoneFinder
  ?apiId=YOUR_KEY
  &linkedinUrl=https://www.linkedin.com/in/johndoe

This works in Clay, Zapier, Make, n8n, and any tool that supports HTTP requests.

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