Callbox
About Callbox
Callbox is a premier global B2B Lead Generation Agency specializing in sales appointment setting and outsourced sales development. Leveraging two decades of expertise, they help enterprise leaders and scaling businesses across 60+ countries (including North America, APAC, and Europe) to grow revenue and expand markets. Their unique strategy combines Human + AI technology with a Multi-Touch Multi-Channel approach (email, calls, social) to deliver qualified leads and booked meetings. Core services include B2B Lead Generation, Account-based Marketing (ABM), Outsourced SDR Support, and Event Marketing for industries like Software, SaaS, Fintech, and Cybersecurity.
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Region
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Addresses
United States
Core Services
Other Services
Service Details
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Company Reviews
Total Reviews
168
Last Rated 3/22/2026
Overall Ratings
Last Rated 3/22/2026
Afia McClenaghan
3 months ago
Spam. Had a couple calls with them and then informed them our company would not be interested, but i receive constant emails from Vincent with a copy/paste email. This isn't professional and comes across as spam. Take a hint.
Luke Genoyer
4 months ago
Had two Exploratory Meetings scheduled with a Callbox representative, but they were no-shows (Jan 21 and Feb 3). I waited in the Zoom meeting room, but nobody showed up to let me in. Their service might be fine, too bad I never had the opportunity to even speak with somebody!
Alexander Levit
1 year ago
Lead Generation for 3D Printing Co
"They were able to find the right persona, which was very difficult for us."
Anonymous
1 year ago
Lead Generation for PropTech Company
"They are communicative, reliable, and transparent."
Samantha Rutter
1 year ago
Sales Outsourcing for Software Company
"They worked collaboratively with us to understand our business."
Anonymous
1 year ago
Lead Generation for IT Services Company
"They're very prompt in responding to emails."
Kenta Iima
1 year ago
Lead Generation for Data Platform & Integration Firm
"They adapted quickly to our requests and ensured our needs were addressed promptly."
Andrew Inkpen
1 year ago
Sales Outsourcing for Software Company
"They over-deliver and meet every area of our goals."
Anonymous
1 year ago
Lead Generation for Cybersecurity Solutions Provider
"Callbox's dedication to providing all-around marketing services and their positive, can-do attitude are impressive."
Varun Suneja
1 year ago
Account-Based Marketing & Lead Gen for Diagnostics Co
"Callbox is an organization that is professionally managed and process-oriented."
Anonymous
1 year ago
Demand Generation Marketing for IT Consulting & Services Co
"The account manager was competent, and the team in general was good."
Anonymous
1 year ago
Lead Generation Services for IT Solutions Provider
"Callbox's customer engagement services were impressive."
Anonymous
1 year ago
Sales Outsourcing for IT Company
"They were friendly and professional."
Anonymous
1 year ago
Call Center Services for Healthcare Company
"Callbox was very responsive and flexible in their approach."
Jaco Marais
1 year ago
Lead Gen & Appointment-Setting for Security Solutions Co
"Callbox is trusted by top global companies to improve sales cycles, generate high-value leads, and support market growth."
Anonymous
1 year ago
Lead Generation for 3D Visualization Software Company
"CallBox had a professional workflow and good execution process."
Anonymous
1 year ago
Lead Generation for IT Company
"We're impressed with their professionalism, detail-oriented approach, and timely delivery."
Anonymous
1 year ago
Lead Generation for Cybersecurity Company
"Callbox's professionalism, efficiency, and commitment to results truly set them apart."
Lucassen Salim
1 year ago
Lead Gen & Appointment Setting for Financial Services Firm
"We're impressed with their good reporting and responsive teams."
Anonymous
1 year ago
SEO, Event Marketing & Sales Outsourcing for MSP
"The results are delivered on activity levels and client meetings."
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