Browse the directory.

Communications

Poplar is a direct mail platform that enables brands to send personalized, automated mailers through a modern API. It allows marketers to integrate direct mail into their marketing automation stacks, treating it like a digital channel with features like A/B testing, analytics, and triggered sending.

Communications

Stream provides APIs and SDKs for developers to quickly build scalable, real-time experiences like chat, activity feeds, video calling, and AI-powered content moderation into their applications. They serve a global customer base and emphasize reliability and developer experience.

Communications

Front is a customer communication hub that brings emails, texts, chats, and social messages into a single collaborative inbox. It helps support, sales, and account management teams to deliver exceptional service at scale.

Communications

OpenPhone is a VoIP phone system designed for modern businesses, offering features like dedicated business numbers, team collaboration on calls and messages, call recording, and IVR. It serves as a flexible alternative to traditional phone lines, accessible via web and mobile apps.

Communications

JustCall is a cloud-based communication system for sales and support teams. It unifies phone calls, SMS, WhatsApp, and more into a single platform, integrating with over 100 CRMs and business tools to streamline workflows and improve agent productivity.

Communications

OVHcloud SMS is a service for sending and receiving text messages programmatically via an API. It is part of the broader OVHcloud ecosystem, a global cloud infrastructure provider.

Communications

LINK Mobility is a global Communications Platform as a Service (CPaaS) provider offering enterprise solutions for mobile messaging, including SMS, WhatsApp, RCS, and Email. They serve various industries by enabling marketing promotions, notifications, billing, and security communications.

Communications

Clickatell is a CPaaS (Communications Platform as a a Service) provider that enables businesses to communicate, engage, and transact with their customers through mobile messaging channels like SMS and WhatsApp.

Communications

Kandy is a Communications Platform as a Service (CPaaS) that enables partners to white-label and embed real-time communications like voice, video, and messaging into their own applications and services.

Communications

Wazo is a comprehensive, open-source communication platform offering CPaaS, UCaaS, and CCaaS solutions. It provides APIs and SDKs for voice, video, and messaging, enabling service providers and enterprises to build and deploy customized, integrated communication experiences.

Communications

Commio (formerly ThinQ) provides a cloud communications platform for voice and text messaging, enabling businesses to manage multiple carriers, reduce costs, and ensure reliability through built-in redundancy.

Communications

TxtSync provides an SMS API that allows businesses to send and receive text messages globally. It supports use cases like two-factor authentication, appointment reminders, and marketing campaigns, with a focus on ease of use and pay-as-you-go pricing.

Communications

Textlocal was a service providing bulk SMS messaging, mobile marketing campaigns, and API integrations for businesses. The platform is being decommissioned on November 30th, 2025, with all customers being migrated to a new, more comprehensive platform called Webex Interact.

Communications

EZ Texting is an SMS marketing platform for businesses to send mass text messages, automate campaigns, and connect with their audience. It offers features like mass SMS/MMS, two-way texting, and automated workflows without requiring coding skills.

Communications

360dialog is a verified WhatsApp Business Solution Provider that offers a scalable and reliable API. It enables independent software vendors and enterprises to integrate WhatsApp messaging for marketing, sales, and customer support.

Communications

GatewayAPI is a global SMS gateway provider that enables businesses to send and receive text messages through a powerful and developer-friendly API. They focus on providing a reliable, secure, and easy-to-integrate messaging solution for various use cases like notifications, marketing, and two-factor authentication.

Communications

8x8 is a Communications Platform as a Service (CPaaS) provider that enables developers and businesses to integrate a wide range of communication channels like SMS, voice, and video into their applications. They serve enterprise clients globally, offering scalable and reliable infrastructure for customer engagement.

Communications

Routee is a cloud communications provider that offers a suite of APIs for messaging (SMS, MMS, Viber, WhatsApp), voice, and user verification. They serve businesses looking to integrate communication features into their applications for marketing, customer service, and security purposes.

Communications

Mailjet is an all-in-one platform for transactional and marketing email and SMS. It provides APIs and tools for developers and marketers to send, track, and deliver messages to their customers.

Communications

SlickText is a text message marketing platform designed for businesses to send mass texts, automate marketing campaigns, and engage in one-on-one customer conversations. It serves over 15,000 brands, focusing on list growth and personalized messaging.