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.
Trusted by global enterprise leaders
We connect companies with their ideal customers
Callbox is trusted by enterprise and scaling businesses in over 60+ countries for lead generation, sales appointment setting, and outbound sales development.
B2B Lead Generation
Precision-targeted outreach to key decision-makers using AI-enriched data and multi-channel engagement at scale.
Appointment Setting and Outsourced SDR
Fully-managed, dedicated sales development reps embedded directly into your go-to-market motion.
Account-Based Marketing
Hyper-personalized campaigns targeting your highest-value enterprise accounts with tailored messaging.
Event & Webinar Marketing
Drive qualified attendance and pipeline from virtual events, webinars, and in-person conferences.
Cross-border Lead Gen
Expand into new geos with localized campaigns across APAC, EMEA, LATAM, and North America.
See what Callbox can do for your business
From ICP definition to qualified meetings in weeks
Our lead gen services combine AI prospecting, verified contact data, and multi-channel outreach to deliver consistent, scalable pipeline growth.
Define Your ICP
We map your ideal customer profile, target industries, and key decision-maker personas with precision.
Build & Enrich Data
Our AI + human team builds a verified, GDPR-compliant prospect list tailored to your goals and regions.
Multi-Channel Outreach
We engage via phone, email, LinkedIn, and digital — with personalized, sequenced messaging for each prospect.
Deliver Qualified Leads
Your pipeline fills with sales-ready leads and confirmed appointments. Your team closes the deals.
Average pipeline growth
within 90 days of launch
Reduction in sales cycle length
with pre-qualified appointments
Campaigns executed globally
across 50+ markets
Average time-to-first-lead
from kickoff to pipeline activity
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.”
“Their GDPR-compliant outreach gave us confidence to scale across the EU without compliance concerns.”
“Professional, data-driven, and results-focused — exactly what we needed for our European expansion.”
Trusted by B2B Teams Worldwide
The Lead Gen Partner Top-Rated Companies Choose
Real pipeline isn’t measured in star ratings alone—it’s measured in closed revenue and qualified meeting show-up rates. Rated among the top B2B lead generation services on Clutch, G2, and Google, Callbox combines two decades of outbound sales support service with multi-channel AI accuracy.
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.