Three more engineering and construction companies have doubled the size of KeySpan Services.
Holding company KeySpan Energy, through its subsidiary KeySpan Services Inc., acquired three more major engineering and construction companies. Paulus, Sokolowski & Sartor Inc. of Warren, N.J.; WDF Inc. of Mt. Vernon, N. Y.; and Roy Kay Inc. of Freehold, N.J., have doubled the size of KeySpan Services.
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