Lead Generation Agency Europe

B2B Lead Gen
built for
Europe & the UK

Callbox helps European enterprises connect with qualified B2B decision-makers — through GDPR-compliant outreach, multi-language SDR teams, and AI-enhanced targeting built for the European market.

Get EU Sales LeadsExplore EU Services
800+
EU Campaigns Run
GDPR
Fully Compliant
20+
Years B2B Experience

Trusted by global enterprise leaders

Our Services

End-to-end B2B
lead generation services

As a full-service B2B lead generation agency, we power your entire outbound pipeline — from AI-enriched prospecting to booked meetings.

B2B Lead Generation

Precision-targeted outreach to key decision-makers using AI-enriched data and multi-channel engagement at scale.

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Appointment Setting

Our trained SDRs qualify and book meetings so your sales team spends 100% of their time closing.

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Account-Based Marketing

Hyper-personalized campaigns targeting your highest-value enterprise accounts with tailored messaging.

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Event & Webinar Marketing

Drive qualified attendance and pipeline from virtual events, webinars, and in-person conferences.

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Outsourced SDR Teams

Fully-managed, dedicated sales development reps embedded directly into your go-to-market motion.

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Cross-border Lead Gen

Expand into new geos with localized campaigns across APAC, EMEA, LATAM, and North America.

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0+
EU Campaigns Executed
0+
European Markets Covered
0%
Avg. Lift in Appointment Rates
0+
Years of Global B2B Expertise
How It Works

From brief to booked meetings in weeks

Our proven 4-step lead gen agency process gets qualified leads in your pipeline — fast.

Step 01

Define Your ICP

We map your ideal customer profile, target industries, and key decision-maker personas with precision.

Step 02

Build & Enrich Data

Our AI + human team builds a verified, GDPR-compliant prospect list tailored to your goals and regions.

Step 03

Multi-Channel Outreach

We engage via phone, email, LinkedIn, and digital — with personalized, sequenced messaging for each prospect.

Step 04

Deliver Qualified Leads

Your pipeline fills with sales-ready leads and confirmed appointments. Your team closes the deals.

Results You Can Expect
3x

Average pipeline growth

within 90 days of launch

40%

Reduction in sales cycle length

with pre-qualified appointments

10K+

Campaigns executed globally

across 50+ markets

2 wks

Average time-to-first-lead

from kickoff to pipeline activity

EU Client Reviews

Trusted by Europe's leading B2B teams

Real results from Germany, the UK, France, and across the European region.

“Callbox delivered a steady flow of qualified leads across our key European markets.”
TK
Thomas Klein
Siemens AG
“Their GDPR-compliant outreach gave us confidence to scale across the EU without compliance concerns.”
AV
Anne Vervloet
Wolters Kluwer
“Professional, data-driven, and results-focused — exactly what we needed for our European expansion.”
NB
Nicolas Blanc
Dassault Systèmes
4.5/5
Google · 85+ reviews
4.4/5
G2 · 90+ reviews
Top
Clutch · EU Leader
Recognition

Industry-leading recognition

🏆
Clutch Top Lead Gen 2026
Global Leader
🥇
G2 Spring Leader 2025
Lead Gen Category
🌟
DesignRush Top Agency
B2B Marketing
✅
ISO Certified
Quality Management
🤝
HubSpot Gold Partner
Solutions Partner
Europe & the UK

Ready to grow your
EU pipeline?

Book a free strategy session with a Callbox EU specialist. Get a clear plan to generate qualified leads across Germany, the UK, France, and other key European markets.

Explore EU Services