Author

Levi Nagy

Head of Operations & Client Success

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Manages end-to-end client onboarding and infrastructure deployment at LeadSonar. Oversees delivery of 1M+ inboxes and ensures seamless integration for high-volume outbound teams.

Articles by Levi

How to Build an Outbound List From Scratch: A Step-by-Step Workflow

A from-zero workflow to build an outbound list: define the ICP, source, enrich through an 18-20-provider waterfall at ~85% hit rate, grade by ICP fit, and verify deliverability inside one workspace that replaces 5+ point tools.

July 13, 2026

B2B Lead List Building: Best Practices Backed by Real ICP Data

The best practices for lead list building start with grade over volume. In a 103,000-contact B2B sample scored by LeadSonar, 40.6% earned an A ICP grade and over 91% qualified at B-or-better. Here is how to build a list that reads that way.

July 10, 2026