AngelList

Mobile educational games

Identify and reward your most influential users with our drop-in social platform.

Modern People Search Engine. YC W2012. Ark.com

Mobile Engine for Web Devs

Everyone's second job

Cloud Simulation Platform

A Revolutionary Cloud Service for Building Massively Scalable Real-Time Apps

Twilio for big data analytics

Youtube for Business.

Discover which of your friends are voters, and campaign with them to elect candidates.

Heroku for WordPress

DropBox-meets-LinkedIn for finance

Easiest and most stylish commerce platform for SMB market

NLP Technology that brings meaning to the social content

Build apps that communicate

Oh, the places you'll go

Inbox for your online conversations and relationships.

Basecamp for Social Media + directory/community of social media tools

Modern Email Platform for Developers

Evolving the user experience for web interaction

PowerInbox brings apps to your emails, just like the iPhone brought apps to your phone.

A Better Way to Rank & Measure Content

Walkie Talkie app for iPhone and Android

Digital Personal Training (Platform)

Simple Online Publishing