Releans is a global leader in customer engagement, powering a broad range of communication channels to reach your customers.
Jasmin SMS Gateway - Jasmin is a very complete open source SMS Gateway with many enterprise-class features such as:
Afilnet - In Afilnet we work every day with hundreds of companies to improve their Bulk SMS, Email Marketing and Social Networks campaigns, enhancing customer acquisition and loyalty
Kannel - Open Source WAP and SMS Gateway
Twilio - Brings voice and messaging to your web and mobile applications.
Ozeki NG SMS Gateway - Ozeki NG SMS Gateway is a powerful, reliable and flexible SMS Gateway application.
Pony Express HQ - Pony Express HQ is an SMS text message marketing for small businesses, real estates, clubs, communities, dispensaries or non-profits. Send and receive text messages and images online with the large group of customers. Group texting app no reply all.