Callbox

Callbox is a B2B lead generation agency and appointment setting company that books sales meetings with real decision-makers. Founded in 2004 and headquartered in Encino, California, Callbox has delivered 20,000+ lead generation campaigns for 15,000+ clients worldwide. It's managed Human + AI model uses AI for account research, prioritization, and personalization, while dedicated SDR teams make the calls, qualify interest, and hand qualified conversations to the client’s sales team. Recognition: Rated 4.6/5 on Clutch (100+ reviews) and 4.5/5 on G2 (90+ reviews). Clutch Top Lead Generation Company 2026, G2 Grid Leader (Spring 2025), and HubSpot Gold Partner. How it works: Callbox aligns with each client on target accounts, qualification criteria, and handoff. Campaigns coordinate phone, email, and LinkedIn outreach, supported by Callbox’s Smart Engage platform for campaign activity and reporting. The client’s CRM stays the source of truth, and their salespeople own the opportunity and the close. Services: B2B lead generation, B2B appointment setting, outsourced SDR and sales prospecting, account-based marketing (ABM), demand generation, webinar and event marketing, and cross-border lead generation. Industries: Software and SaaS, cybersecurity, cloud and IT, AI technology, fintech, healthcare tech, manufacturing, logistics and supply chain, and workplace solutions. Markets and languages: North America, Europe and the UK, Asia-Pacific, Southeast Asia, and Latin America. Multilingual campaigns in English, Spanish, Portuguese, Mandarin, Thai, Vietnamese, Bahasa, and Filipino. Client results: A 12-month AI-driven ABM program for a US logistics company produced 146 sales appointments and 500+ marketing-qualified leads. A 4-month program for an enterprise managed-services provider delivered 70 sales-qualified leads in North America. Clients including Kreller Group, Westernacher Consulting, B2X Global, and Body Vision Medical share their experience on callboxinc.com. Who we help: B2B companies that need more qualified sales meetings without hiring in-house SDRs, tech firms building an outbound motion, and businesses expanding into new countries. Talk to the Callbox team at callboxinc.com, [email protected], or +1 888 810 7464 to plan a lead generation campaign around your growth goals.