Clickatell - Simple, reliable mobile messaging cloud.
ShoutOUT - All in one business texting tool to send personalized alerts, promotions, reminders, short links and marketing campaigns, for any SMEs (hotels, restaurants, education, non profits, Woocommerce, banks, healthcare, agencies, supermarkets, weddings)
Twilio - Brings voice and messaging to your web and mobile applications.
Trumpia - SMS Marketing and Marketing Automation software for Mass SMS, internal communications & emergency alerts. #1 Text Messaging Service used by Fortune 500s.
SMS Gateway Hub - Leading Bulk SMS service provider offers transactional & promotional bulk SMS solutions to enterprises via powerful & robust API.
LinkTexting.com - LinkTexting.com offers SMS marketing solutions to convert desktop traffic to app downloads.