Sinch

Sinch provides global communications infrastructure businesses use to engage customers across messaging, voice, email, and verification. Founded in 2008, Sinch's platform combines direct carrier and inbox connectivity with compliance, security, and fraud protection built into the routing layer.

Core Capabilities

• Messaging: SMS, RCS, MMS, and WhatsApp APIs and applications for marketing campaigns, notifications, and two-way customer conversations.
• Voice: Programmable voice APIs and SIP trunking for call routing, IVR, and voice-based customer service.
• Email: Transactional and marketing email infrastructure for deliverability at scale.
• Verification: Phone number, SMS, and flash-call verification APIs for identity checks and fraud prevention.
• Agent Tools: MCP, Functions, and Skills for connecting AI agents to Sinch's communication channels, alongside support for third-party AI and partner platforms.

Differentiators

• Direct-to-carrier network: over 600 direct carrier and operator connections and more than 160 million active phone numbers, reducing the number of intermediaries between a message and its recipient.
• Compliance built in: ISO 27001, ISO 9001, PCI DSS, and SOC I and II certified; GDPR and HIPAA compliant; approved under the MEF Code of Conduct.
• Analyst-recognized: named a Leader in the 2026 Gartner Magic Quadrant for CPaaS and the IDC MarketScape for Communications Engagement Platforms.
• Open ecosystem: APIs, applications, and integrations that let businesses build directly with Sinch, connect existing technology, or bring their own AI and partner platforms.

Industry Use Cases

• Retail and e-commerce: SMS and RCS for promotional campaigns and order updates. Sinch states that Skincare brand Clarins reported a 2.5x increase in engagement after adopting RCS.
• Logistics and services: Automated delivery and appointment notifications; the vendor states that EasyPark Group reported a 97% delivery rate on SMS and RCS updates sent to its users.
• Financial services: Voice and verification APIs used for transaction confirmation and identity checks.
• Healthcare: HIPAA-compliant messaging and voice for appointment reminders and patient communication.

Considerations
Sinch supports businesses across a range of technical maturity, from teams building custom integrations directly on its APIs to those using ready-made applications with minimal setup. Pricing and channel availability vary by region and use case.

The vendor states that their infrastructure is currently supporting more than 200,000 businesses, including 8 of the 10 largest U.S. technology companies, at a scale of over 1 trillion customer interactions annually.