Startups are newly established businesses (often technology companies) that are in the growth and research phases. Startups are often seeking funding from venture capital firms or angel investors on their path to becoming a profitable business. A startup ceases to be a startup when the company either becomes profitable, becomes a publicly traded company (via an IPO), or is acquired by another company. Below is a list of the top startups (and a few websites that like to talk about startups). If one is missing feel free to "add a site to this list" at the bottom left." (We also have city specific startup lists here at AboutUs.org, like Portland startups, Seattle startups, Denver startups, Phoenix startups and even Australia startups. Want to create one about your city? Email Kristina@AboutUs.org.)