Outsourced SDR Agency
Drive More Sales with SDR + Growth Engine
Yes, we provide outsourced SDRs. But we go beyond outsourcing with data, AI, strategy, technology, and a dedicated team that drives consistent qualified meetings and sustained pipeline growth.
Trusted by global enterprise leaders
Beyond Common Roadblocks in SDR Outsourcing
Scaling a pipeline takes more than hiring outsourced SDRs to make calls. B2B teams struggle with bandwidth, lead quality, and prospect engagement. Callbox solves these challenges with a complete sales development program that includes SDRs, data, content, AI, and multi-channel outreach.
SDRs Spread Too Thin
In-house reps get stuck juggling admin, research, and meetings. Our SDRs focus on pipeline building, supported by content teams, data analysts, and AI tools to keep sales focused on closing.
Difficulty Reaching Decision-Makers
Breaking into buying groups takes more than cold calls. Our SDRs are backed by multi-channel outreach, targeted content, and AI-powered data to connect with the right people.
Low Show Rates and Missed Meetings
No-shows happen without proper nurturing. We use SDR follow-ups, content touchpoints, and automated reminders to secure commitment and improve show rates.
Limited Capacity to Scale Outreach
Scaling outreach needs more than headcount. With Callbox, SDRs are part of a system of data enrichment, digital outreach, and event marketing that flexes with your goals.
Why Companies Choose Callbox for SDR Outsourcing
Dedicated SDRs within a Complete Team
Our SDRs don’t work in isolation. They collaborate with Client Success Managers, Data Analysts, Digital Marketers, and Content Specialists.
TALK TO SALESProven Multi-Channel, AI-Powered Strategies
We combine voice, email, LinkedIn, chat, and events with AI-driven personalization to create more touchpoints and higher engagement.
TALK TO SALESCRM-Integration and Full Transparency
While many B2B appointment-setting companies operate in silos, Callbox integrates directly into your CRM or sales platform. You get real-time access to performance dashboards, prospect activity, and full-funnel visibility.
TALK TO SALESSee the Callbox Difference: Beyond Outsourced SDR
Our outsourced SDRs, backed by data and multi-channel outreach, consistently deliver qualified leads that match your ideal buyer profile and show real intent.
We don’t just book meetings. SDRs work with nurturing campaigns, reminders, and content to ensure decision-makers actually show up and your sales calls are productive.
With SDRs supported by AI-driven insights and strategy, prospects stay engaged and responsive, reducing time to close and accelerating revenue growth.
Clients report 3x top-of-funnel improvement because SDRs are integrated with data, content, and full-funnel support, not limited to basic appointment setting.
Helping B2B Teams Scale with Outsourced SDR + Full Program Support
We help software, SaaS, tech, healthcare, finance, and service-based companies fill their pipelines with qualified opportunities. Our outsourced appointment setter are part of a complete program designed for complex B2B sales.
Our clients say we're the #1
Lead Generation Company
Opmetrix's in-house sales team struggled with low conversions due to poor lead quality and limited engagement methods.
Callbox's year-long lead generation program created a steady flow of qualified meetings, fueling revenue growth, prompting a renewal with expanded services.
We have seen an increase in our lead generation and conversion rates.
Infoshare Sciences sought a strategic partner to improve lead generation and nurture leads, in order to solidify their market position.
Callbox's lead generation program resulted in partnerships with four of Australia's largest supermarket organizations, and over $150M revenue growth, leading to a successful and ongoing collaboration.
Callbox was able to generate leads in a stable pattern for a long period, over one year.
Outsourced Appointment Setting Fuels IT Consulting Firm’s Expansion
Learn how Callbox’s appointment setting for IT consulting enabled a firm to engage decision-makers, strengthen its sales pipeline, and grow its market presence.
Read Full Case Study