Data Scraping & Enrichment: How to Build a Quality Lead List

Step 1: Define Your Ideal Customer Profile (ICP)

Before scraping a single lead, define exactly who you're targeting:

• Industry: SaaS, e-commerce, healthcare, etc.
• Company size: 10-50 employees, 50-200, 200+
• Job titles: CEO, VP of Marketing, Head of Operations
• Geography: USA, UK, specific states or cities
• Revenue range: $1M-$10M, $10M-$50M

The tighter your ICP, the higher your reply rates. A list of 500 perfect-fit leads outperforms 5,000 random contacts every time.

Step 2: Scrape with Apollo

Apollo is the go-to platform for B2B lead scraping. Use advanced filters to find contacts matching your ICP:

• Filter by job title, seniority, and department
• Filter by company industry, size, and tech stack
• Export with email, phone, LinkedIn URL, and company data
• Use "People & Account" search for precision targeting

Pro tip: Export in batches of 200-500 to maintain quality control. Review each batch before moving to enrichment.

Step 3: Enrich with Clay + Leadmagic

Raw scraped data isn't enough. Enrichment adds critical data points that make your outreach personal:

• Clay Tables: Import your Apollo export, then use Clay's waterfall enrichment to fill in missing data — company revenue, tech stack, recent funding, LinkedIn activity
• Leadmagic: Verify email addresses and add mobile phone numbers. This step catches invalid emails before they damage your sender reputation
• Company signals: Recent hiring, job postings, and technology changes that indicate buying intent

Step 4: Validate & Clean

The final step before any campaign launch. Remove:

• Invalid or catch-all email addresses
• Duplicate entries across lists
• Generic emails (info@, admin@, support@)
• Contacts who've previously unsubscribed
• Incomplete records (missing first name or company)

Target: Keep your email validity rate above 95% before loading into your sending tool.