America's 10 Fastest-Growing Companies

Even in a sluggish economy, there are a few American companies that are killing it.

Fortune released its annual list of the fastest-growing companies in America today, ranked by revenue and EPS growth rates, and total return over three years.

Some of the companies that are doing well are a reflection of the economy, beneficiaries of the oil and natural gas boom. Others are involved in the technologies of the future, like 3D printing and fiber optic lasers.

All of them are growing at an absolutely breakneck pace.

The numbers provided are three-year averages.