Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

DialogTech - DialogTech is an end-to-end call attribution and conversion platform.

Event Hunt - Startups and Tech Events Curated By Locals

CallTrackingMetrics - Know who is calling and how they found you. Maximize the return on your advertising.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Marchex - Marchex is a mobile advertising analytics company that connects online behavior to real-world, offline actions.