Twilio - Brings voice and messaging to your web and mobile applications.
RevResponse - RevResponse empowers advanced Publishers to viably adapt all types of B2B activity by means of automatic promotion advances, local publicizing, and the biggest stock of expert substance.
E-goi - Email Marketing companies, SMS Marketing, software email marketing.
Yodle - Yodle is a leading local online marketing company with 50,000+ local business customers.
Maytapi - Serverless Whatsapp Api with Chat and Agent support.
AWeber - AWeber is an Email marketing software that's easy to use. Send email newsletters & autoresponders and deliver top notch emails.