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Crawlswarm

About

Not a new category. Not another promise. A precision instrument designed after two years of chaining incomplete tools to deliver genuinely actionable B2B leads.

Founder

Kevin Lefebvre.

Two years ago, we built an internal pipeline for our own B2B cold-email prospecting operation. Maps sourcing, enrichment, SMTP verification, sequences. All in-house, because no tool on the market did the whole thing cleanly.

Apollo and Lusha are strong on established B2B SaaS databases, but go shallow on local SMEs. Outscraper extracts Maps data but stops there — no reachable contact enrichment. Phantombuster handles LinkedIn well but not Maps. And none of them are built for teams who just want to run a search and get leads they can actually use.

Crawlswarm is that pipeline, packaged. Internal production code becomes an open product. Same modules, same rigor on data quality — delivered as a SaaS for teams who want results immediately.

Profile

NameKevin Lefebvre
RoleFounder · Solo builder
BackgroundB2B cold-email, sales ops, build-in-public
LocationFrance
StackTypeScript, Postgres, Next.js, Drizzle

What we stand for

Four principles that guide every product decision.

Built for real use

The pipeline runs in internal production before every public ship. No slides, no promises — tested code.

GDPR by default

Data stored in the EU. SMTP verification without sending. No pixel-spam tracking. Compliance from day one.

Build in public

Public roadmap, delays communicated without filter, clean code. Early users see the evolution in real time.

Execution speed

Monthly incremental ships. Fast iteration on beta feedback. No big-bang, no over-engineering.

Contact

A question? Response within 24h.

The early-mover advantage.

Private beta by invitation. First-month users shape the product trajectory.