Advertising and Marketing: WDFA Marketing
WDFA Marketing, under the leadership of CEO Raj Prasad, has grown over 13,969 percent in just three years.

Business Products and Services: Listen Up Espanol
Portland-based Listen Up Espanol, a call center for Spanish-speaking customers, is cashing in on the Latin population boom.

Computer Hardware: Maxlinear
Maxlinear CEO Kishore Seendripu took bootstrapping to the next level by recruiting seven founders to work for free.

Construction: Direct Exteriors
Direct Exteriors President Mike McAlpin devised an algorithm for where disasters will strike so he can be there to clean up the mess.

Consumer Products and Services: Scentsy
With 8,094 percent growth in three years, the sudden success of wickless candle company Scentsy saved it's founders from bankruptcy.

Education: FortuneBuilders
FortuneBuilders CEO Than Merrill shares his trade secrets on the A&E series Flip This House, where he restores distressed properties.

Engineering: Appareo Systems
Appareo Systems grew 1,752 percent over three years designing and building electronic devices for the aviation industry.

Environmental Services: Cleanscapes
Cleanscapes President Chris Martin took cleaning up the streets of Seattle very seriously, eventually landing a $36 million deal with the city.

Financial Services: Debt Free Associates
What recession? Debt Free Associates, which grew over 12,376 percent in three years, is one of a few companies that look forward to a downturn.

Food and Beverage: Signature Foods
Signature Foods carved out a niche by packaging frozen food for small, third-party manufacturers, earning $28 million in revenue in 2009.

Government Services: Luke & Associates
Growing 16,636 percent in three years, Luke & Associates staffs Army- and Airforce-base hospitals and clinics with doctors and nurses.

Health: Physicians' Pharmaceutical
With $8.7 million in revenue in 2009 and 9,307 in three-year growth, Physicians' Pharmaceutical helps doctors set up in-house pharmacies.

Human Resources: Pursuit of Excellence
As CEO of Pursuit of Excellence Marie Diaz coaches clients on leadership and organizational development.

Insurance: QuoteWizard
QuoteWizard allows customers to shop around for insurance coverage, growing 5,951 percent over three years.

IT Services: Carbonite
By selling unlimited online backup space for personal computers Carbonite grew 11,208 percent in three years, earning $19.1 million in revenue.

Logistics and Transportation: Coyote Logistics
Coyote Logistics CEO Jeffrey Silver implemented backhauling to make his trucking company more efficient and productive.

Manufacturing: Intergroup International
A devastating fire was hardly a setback for Intergroup International CEO Neil Gloger, who still managed to grow the company 1,285 percent in three years.

Media: Blurb
Blurb CEO Eileen Gittins started her own publishing company, giving individuals the power to self-publish books.

Real Estate: Platinum Realty
Bootstrapping CEO Scott DeNeve survived when the housing bubble burst by cramming into a small office and keeping debts to zero.

Retail: Modcloth
Modcloth, run by a husband and wife team, is a website that sells vintage clothing and drew in $15.6 million in 2009.

Security: Lifelock
Lifelock CEO Todd Davis gave out his Social Security number to demonstrate his confidence in his identity theft prevention company.

Software: Vendormate
Serial entrepreneur Andy Monin created the Vendormate software to help health care facilities manage vendors, earning $10.7 million in 2009.

Telecommunications: Clearaccess
Founder Ken Hood created Clearaccess to assist broadband service providers with managing customers and devices, growing 3.460 percent in the process.

Travel: SaveOnResorts.com
Growing 1,055 percent in three years and earning $3.7 million in 2009, SaveOnResorts.com helps resorts sell time shares for discounted rates.