Global enterprise leaders trust Callbox’s 20-year expertise as a premier lead generation company for Software, SaaS, Cloud, Cybersecurity, Fintech, and AI to grow revenue, expand markets, sell new products, and fast-track market entry.
Trusted by global enterprise leaders
A full-service B2B lead generation agency combining AI-powered outreach with dedicated SDR teams — delivering qualified meetings for Software, SaaS, Cloud, Healthcare, and 50+ industries.
Precision-targeted outreach to key decision-makers using AI-enriched data and multi-channel engagement at scale.
Learn more →Our trained SDRs qualify and book meetings so your sales team spends 100% of their time closing.
Learn more →Hyper-personalized campaigns targeting your highest-value enterprise accounts with tailored messaging.
Learn more →Drive qualified attendance and pipeline from virtual events, webinars, and in-person conferences.
Learn more →Fully-managed, dedicated sales development reps embedded directly into your go-to-market motion.
Learn more →Expand into new geos with localized campaigns across APAC, EMEA, LATAM, and North America.
Learn more →Our lead generation experts craft specialized strategies tuned to your market's buying cycle and key decision-makers.
Our B2B lead generation process combines AI prospecting, verified contact data, and multi-channel outreach to deliver consistent, scalable pipeline growth.
We map your ideal customer profile, target industries, and key decision-maker personas with precision.
Our AI + human team builds a verified, GDPR-compliant prospect list tailored to your goals and regions.
We engage via phone, email, LinkedIn, and digital — with personalized, sequenced messaging for each prospect.
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
Callbox's AI doesn't run in a single channel. It powers a unified intelligence loop across email, voice, social, and data — with human GTM expertise at every critical touchpoint.
Explore the full Callbox AI AdvantageAI researches every prospect individually — their role, company news, and intent signals — then writes a genuinely unique email for each. Not mail merge. Not templates. True 1:1 at any volume.
Callbox pairs AI voice agents — running 24/7 for high-volume transactional calls — with human SDRs who handle the consultative conversations that close deals. AI scales the volume. Humans drive the outcome.
AI analyzes a prospect's recent posts, career transitions, and network activity before crafting each connection request and message. Every touch is timed and synced with email and voice for a coordinated multi-channel sequence.
Every contact is built from a multi-source waterfall — ZoomInfo, Lusha, Apollo, Clearbit, and more — then verified, enriched with 200+ firmographic and intent signals, and continuously refreshed so your pipeline never goes stale.
AI amplifies. Humans close. Teams pairing AI outreach volume with human consultative skill are 3.7× more likely to hit quota than those using either approach alone. Every Callbox program is built on that model.
Real results, told by the B2B leaders who lived them.

Improves lead quality and sales appointment rates

Boosts outreach efficiency and gains stronger pipeline visibility

Scales lead generation and strengthens market presence

Expands market reach and accelerates sales outreach
4 of the 5 largest companies in the world trust Callbox for outsourced sales and marketing solutions.
“We’ve seen a significant increase in lead generation and conversion rates since partnering with Callbox. Their team is professional and consistently delivers results.”
“Callbox generated leads in a stable, consistent pattern for over a year. Their multi-channel approach exceeded our expectations across European markets.”
“Callbox was instrumental in launching our new product into the US IT market. The quality of leads and booked appointments was consistently outstanding.”
Expand your reach and connect with new leads from the world's top B2B markets across North America, Asia-Pacific, Latin America, and EMEA.
10,000+ campaigns across US and Canadian markets with deep expertise in tech, finance, and healthcare.
Explore NA campaigns→B2B marketing expertise spanning Singapore, Australia, New Zealand, and broader Asian markets with local teams.
Explore APAC campaigns→Over $100M revenue generated for LATAM-focused campaigns across Colombia, Brazil, and Mexico.
Explore LATAM campaigns→GDPR-compliant outreach helping European enterprises scale their B2B pipelines across the EU and UK.
Explore EU campaigns→Book a free strategy session with a lead generation expert. No commitment — just a clear plan to grow your pipeline.