How to build a targeted B2B lead list (ICP, sources, and hygiene)

Short answer: build a targeted B2B lead list by defining a tight ICP (industry, size, role, trigger), pulling contacts from 2–3 sources, verifying every email before sending, and enriching with the data you'll personalise on. A small, clean, well-targeted list out-performs a huge scraped one every time.

The process

1. Define ICP — be specific: "Heads of Sales at 20–200-person B2B SaaS in the US/UK".
2. Source — combine a database, LinkedIn, and your own site/intent signals.
3. Verify — run a verification pass; drop invalid + risky addresses.
4. Enrich — add the one or two fields you'll personalise on.
5. Segment — group by persona so messaging stays relevant.

Hygiene matters most

A list with 8% invalid addresses will wreck your deliverability before the campaign even warms up. Verify first, always.

Autocloz lets you import any list, verify it, and enrich + segment before enrollment.

> Start free — import, verify and segment your first list today.