Textmagic - The all-in-one solution for all your business texting needs - marketing campaigns, two-way SMS chats, reminders, notifications, and internal staff communication.
Twilio - Brings voice and messaging to your web and mobile applications.
SimpleTexting - SimpleTexting offers SMS and text marketing services for companies of all sizes.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Mobiniti - Mobiniti offers a mobile marketing platform for clients to invite customers to engage with their brand through SMS via their mobile phone.
BulkSMS - SMS messaging service provider offering two-way SMS communication services.