SONTEK/YSI

CEO: Richard Omlor.

Financial information: Not disclosed.

No. of local employees: 65.

Investors: Privately-held, employee-owned.

Headquarters: Sorrento Valley.

Year founded: 1992.

What makes the company innovative: SonTek/YSI makes electro-acoustic instruments that measure water velocity using the Doppler principle, the same physics used by weather radar to track storms. The devices use sound to measure how fast and in what direction water is moving.

“Water, water everywhere, nor any drop to drink,” the great British poet Samuel Taylor Coleridge wrote in “The Rime of the Ancient Mariner...

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