Type: Public
On the web: http://www.memc.com
Employees: 5,600
Employee growth: 8.9%

MEMC Electronic Materials doesn't waver from its devotion to wafers. MEMC supplies silicon wafers ranging in size from 100mm to 300mm -- four inches to one foot -- in diameter. In addition to standard prime polished wafers, MEMC makes epitaxial wafers (which have an added layer of single-crystal silicon) for advanced chips, as well as lower-grade wafers used to test chip-making equipment and production lines. The company also makes solar wafers and sells solar-grade polysilicon, both of which go into making solar cells. Its SunEdison unit develops solar energy projects in North America and Europe. Customers outside the US account for most of sales.

Key numbers for fiscal year ending December, 2010:
Sales: $2,239.2M
One year growth: 92.4%
Net income: $34.4M

Officers:
Chairman: John W. Marren
President, CEO, and Director: Ahmad R. Chatila
SVP and CFO: Mark J. Murphy

Competitors:
Shin-Etsu Handotai
Siltronic
SUMCO

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