MarketplaceKit - MarketplaceKit is a platform for building different types of online marketplaces.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Sharetribe - Build your online marketplace business. You don't need a developer.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Kreezalid - Marketplace building solution for small to midsize firms
Plivo - Plivo simplifies your customer engagement.