Twilio - Brings voice and messaging to your web and mobile applications.
Birdeye - #1 most trusted reputation and customer experience platform for local business
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Reputation.com - Reputation.com is a solution for tracking and improving online reviews, social media, and local search visibility for businesses.
BulkSMS - SMS messaging service provider offering two-way SMS communication services.
Podium - Podium helps your business get more customer reviews, manage customer feedback, customer interaction, and online review management from one software.