Source and enrich qualified prospects

Ten good contacts beat a thousand addresses

The beginner's temptation is to buy a list of 10,000 emails and blast everyone. The result: spam complaints, a burned domain, and zero sales. Modern sourcing does the opposite: few contacts, but the right ones. Before any tool, write down your ideal customer (the famous ICP): industry, size, the role of the person you're talking to, the trigger that makes your offer useful now. A prospecting tool without a precise target just industrializes vagueness.

You don't prospect wider, you prospect sharper.

Finding the right people

Several families of tools let you build a targeted list:

  • LinkedIn Sales Navigator (~€80/mo): the standard for filtering people by industry, company size, role, seniority. It's the backbone of B2B prospecting.
  • Apollo.io (free then ~$49/mo): a database of millions of contacts with emails, finely filterable. Excellent value to get started.
  • Cognism / Lusha / Kaspr: contact databases (emails, phone numbers), often with a LinkedIn extension, more volume- or Europe-oriented.
  • Directories & registries: for local B2B, business directories, Google Maps, or company registries remain underrated free sources.

Enriching: turning a name into a reachable contact

Finding a name isn't enough; you need a valid address and a phone number. That's the role of enrichment:

  • Dropcontact (~€24/mo): finds and verifies B2B emails from a name + company, GDPR-compliant (data reconstructed, not resold).
  • Hunter.io (free then paid): finds the professional email and checks deliverability.
  • Clearbit / Apollo: enrich a record with company, size, industry, technologies used.

Essential reflex: verify emails before sending. A verification tool (Hunter, NeverBounce, Bouncer) removes invalid addresses and protects your domain's reputation. Sending to dead addresses sabotages all your future sends.

Signals: prospecting at the right moment

The best prospect is the one with a need now. Signal tools detect those triggers:

  • Fundraising, hiring, open roles: a growth signal (sources like company news databases, or tools like PhantomBuster to monitor LinkedIn).
  • Visits to your site: tools like Leadinfo or HubSpot identify the companies visiting your pages.
  • Job changes: a contact who switches company is a re-activatable prospect — Sales Navigator flags it.

Plugging a signal into your prospecting moves you from "hello, I exist" to "I'm reaching out because of [event]." The reply rate is a different world.

Automating sourcing — with restraint

Tools like PhantomBuster or Clay let you automate collection and enrichment at scale (extract a LinkedIn list, enrich it, push it to the CRM). Clay in particular combines sourcing, multi-source enrichment, and AI to personalize each row. Powerful, but to be handled with restraint: respect platform limits and GDPR. Automation amplifies a good target — it amplifies a bad one too.

GDPR isn't optional

Prospecting in B2B in Europe is allowed, but regulated: a message relevant to the person's professional activity, a clear sender identity, the ability to unsubscribe at any time, and no sensitive data. Tools like Dropcontact are built for this compliance. Clean sourcing isn't just a legal matter: it's what maintains your sender reputation, hence your ability to reach inboxes.

Push everything into the CRM

Whatever the tool, the rule from the previous chapter holds: a sourced prospect only exists if it enters the CRM, with its source and a first dated action. Most of these tools connect natively or via Zapier/Make. A list exported into a forgotten spreadsheet is worth nothing; the same list in the CRM, with a sequence ready, becomes pipeline.

Key takeaways

Sourcing means aiming sharp, not wide: define your ideal customer, find the right people (Sales Navigator, Apollo), enrich and verify their details (Dropcontact, Hunter), and prospect on signals to land at the right time. Stay GDPR-compliant to protect your sending reputation, and systematically push every prospect into the CRM. The list is ready: now you work it with follow-ups that run on their own.

We use Microsoft Clarity to understand how the site is used and improve it. By continuing to browse, you accept it. You can disable it at any time.