Afilnet is one of the best SMS provider in the market, we have been working with this company for the last 10 years, and we're really happy with the service and support given.
LINK Mobility - LINK Mobility is Europe's leading provider within mobile communications, specialising in mobile SMS messaging, digital services and multi-channel conversational communication.
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.
Melrose Labs SMSC Simulator - SMPP SMSC simulator to test SMS messaging applications.
Releans - Communication platform for Messaging and Chatbots
Clockwork SMS - Clockwork is an Easy Text Message API. An SMS API for Developers. Build powerful apps and include SMS. Signup is free, Try it now.
Twilio - Brings voice and messaging to your web and mobile applications.