Clickatell

Clickatell is one of the largest mobile messaging companies in the world. Clickatell specializes in bulk messaging services and SMS gateway connectivity with guaranteed connectivity to 712 mobile networks in 212 countries. The company's multimodal mobile messaging, combining voice, e-mail, SMS and fax delivery channels, ensures customers of confirmed delivery of mission critical information. Headquartered in Redwood Shores, California, the company also has offices in the United Kingdom and South Africa.