TeleSign - a global leader in phone-based authentication and verification services with coverage in more than 200 countries and 50 languages.

With over one billion transactions processed, TeleSign is the most respected name in the field of telephone verification and authentication, protecting the largest online companies in the world. TeleSign serves some of the world's largest and most prominent web businesses in social media, lead generation, classifieds, financial services, eCommerce and cloud-based services. TeleSign guarantees enterprise-level uptime and provides industry-leading global deliverability rates.