He built three companies by following the flaw each business revealed in the last. The harder trick was deciding what could never be for sale.

He spent weekends ruling on inches and weekdays building companies. The same instinct carried Bart Longson from a recession-battered real-estate business to Clicklease: decide, adjust, and keep the play moving.

He started a dot-com in college, turned association paperwork into a software business, ran relief operations in the Philippines and built a national clinic network. Craig Weston's latest project asks a harder question: what happens when an entrepreneur's blueprint becomes public geography?

After four decades in corporate strategy, a Coast Guard veteran from rural Utah tried retirement. Then Verdis Norton built his consequential second act - a global company begun when he was 69.

Before he led marketing, Michael Arce studied networks, managed web developers, helped run a landscaping company, and tested entrepreneurship three times. His career makes a useful case for collecting skills before collecting titles.

He took a $10 million business to zero on purpose, rebuilt it for Main Street, and learned that the smartest founder in the room is often the one willing to abandon the wrong answer.