The complete platform for enterprises to engage customers across every channel—Bulk SMS, WhatsApp Business API, Email, USSD, Shortcodes, and intelligent Feedback systems.
Every interaction delivered reliably across channels that matter. From marketing campaigns to critical notifications, GreySilicon powers communication that drives results.
Reach millions instantly with enterprise-grade SMS delivery. Local numbers in 140+ countries with automatic failover and real-time analytics.
Learn more →Send rich media messages with verified business accounts. Perfect for customer service, notifications, and personalized engagement at scale.
Learn more →High-volume email delivery with 99.95% SLA-backed uptime. Advanced deliverability, inbox tracking, and detailed analytics.
Learn more →Interactive mobile services without internet. Perfect for banking, surveys, and services in emerging markets.
Learn more →Capture customer insights across all channels. Real-time sentiment analysis, automated workflows, and actionable intelligence.
Learn more →Built for scale, reliability, and performance that enterprises demand.
2.5 second average delivery for 95% of messages worldwide
End-to-end encryption with ISO 27001 & SOC 2 compliance
Track delivery, engagement, and conversion in real-time
Local presence in 140+ countries with automatic routing
Guaranteed delivery with multi-route redundancy
RESTful APIs, webhooks, and comprehensive SDKs
See how companies use GreySilicon to transform customer communication.
"GreySilicon's WhatsApp Business API helped us reach customers where they are, increasing response rates by 250%."
"Switched from our previous provider and saw immediate improvements in deliverability and customer satisfaction."
"USSD and feedback systems reduced our support load while improving customer satisfaction scores."
For teams that need direct programmatic access, GreySilicon offers comprehensive APIs that power communication infrastructure for thousands of companies worldwide.
{
"to": "+1234567890",
"message": "Your order is on the way!",
"channel": "whatsapp",
"template": "order_update",
"params": {
"order_id": "ORD-12345",
"eta": "2:30 PM"
}
}Start transforming your customer communication today.