SMS Startups

iMessage + iCloud for Android. 4 Million users. 7 Billion messages. 55% DAU/MAU

The easiest and most private way to share things with your significant other (YC W12)

HIPAA-Compliant Group Communication Platform, YC W2012, StartX F2011

Web & Smartphone Instant Messanger with 250m downloads.

The Global SMS and Voice API

Real-time mobile communication

Instant, affordable audience response without clickers, using any mobile device.

Hands free voice texting (YC W12)

1-to-1 marketing on a mass scale to help SMBs actively reach, engage and reward consumers

Let your friends make decisions for you.

Text Powered Applications for Business

Mail Chimp for SMS and Social Marketing

OpenTable for no reservation restaurants

GROU.PS is a social groupware platform with 3.5MM muv. It's the Y! Groups of Facebook era

Mobile & Social Marketing

Create your mobile social network in ten seconds

Mobile research and marketing in the developing world

Knowledge Messaging

Social Mobile Calendar on Facebook

Turnkey mobile marketing and display advertising for SMBs.