Red Hat

(RHAT)

acquired

Planning Technologies

, an Atlanta-based infrastructure consulting firm, in a stock swap valued at $47 million.

Red Hat will account for the acquisition as a pooling of interests. Planning Technologies' current clients include

AT&T

(T) - Get Report

,

Home Depot

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,

Delta Air Lines

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,

BellSouth

(BLS)

and a variety of government agencies.

Red Hat, a Linux operating system distributor, said Planning Technologies has more than 200 engineers and consultants.

Shares of Red Hat, which is based in Durham, N.C., remained unchanged at $6.75 in

Nasdaq

trading this afternoon.