NEW YORK (FORTUNE Small Business Magazine) - How can you pick the next big thing - while it's still small?

If you're author David Thomson, you look for firms that not only pass your rigorous financial screens but also embody your seven principles.

More from FSB Help wanted for HR firm A CEO and rodeo queen King of the mountain bike Current Issue

Photo Gallery See more photos

Here are six particularly promising candidates that Thomson says stand a good chance of becoming the next major players.

They range from a sporting-goods maker to electronics retailers.

See six companies on the fast track. Click here.

-----------------------------------

49 companies batting a billion. See the list.

7 ways to join the billion-dollar club. Read more.

Could you build a $1 billion business? Take the quiz.