Organic, With Strong Opening,
Is Latest Hot Net-Consulting Firm

Jonathan Nelson sold T-shirts and managed a New York nightclub before settling down to run Web design firm Organic Inc. in 1993.

Now his San Francisco agency is the latest Internet-consulting firm to strike it rich by tapping the public market. Shares of Organic began trading Thursday at an offering price of $20 and finished at $39.9375. Earlier this week, Organic increased the price range for its initial public offering to between $18 and $20 a share, up from between $12 and $14 a share. Organic sold 5.5 million shares in...