36. Trillion Communications Corp.

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Trillion Communications Corp. is the largest black-owned high-end telecommunications equipment distributor and installer. Founded in 2001, the company specializes in pre-assembly and integration testing of fiber-based solutions. In 2008, the company reported revenues of $122 million—down 20% from last year.

The Bessemer, Alabama-based company is certified by the Southern Regions and Nevada Minority Business Councils. Clients include AT&T, Qwest, and GE Capital Solutions among others.