Founded in 2004, Callbox is the largest provider of outsourced B2B marketing and sales support services for businesses and organizations worldwide. Using an account-based marketing approach in reaching a global database of contacts from over 35 million businesses, Callbox enables companies to establish and expand markets by connecting with prospects through six lead generation avenues: voice, email, social, chat, website and webinars.

To increase sales productivity, Callbox provides support to its clients by giving their sales teams access to a full stack of sales and marketing tools that drive up lead conversion. Equipped with decades of marketing expertise and powered by intuitive sales technology, Callbox helps companies grow their business exponentially.