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Callbox

Callbox

Review
9.4/10
🇺🇸 Encino, CA·250-999 employees·Est. 2004·Reviewed Mar 2026

The largest provider of outsourced B2B marketing and sales support

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Best For
Global B2B companies needing multi-channel, multilingual lead generation
Hourly Rate
$25-49/hr
Min. Project
$1,000+
Industries
Software, SaaS, Cybersecurity

About Callbox

Global B2B lead generation company founded in 2004, delivering 1.3M+ qualified leads across 20,000+ campaigns. Combines AI-powered tools with human expertise for multi-channel outreach including phone, email, LinkedIn, chat, and events across 15+ languages.

Who Callbox Is Best For

Global B2B companies needing multi-channel, multilingual lead generation. This agency is typically a strong fit for organizations that value consistent execution, clear reporting, and practical collaboration in Encino, United States. Engagements perform best when stakeholders align on measurable KPIs and maintain a regular optimization cadence across strategy and delivery.

Why Choose Callbox

20+ years experience
1.3M+ leads delivered
15+ languages
Global coverage

Callbox Services

Lead GenerationAppointment SettingAccount-Based MarketingEvent MarketingWebinar MarketingDatabase Services

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