O S I Management Inc   
Personnel Consultants

1629 K St NW Ste 300

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About Company

OSI is the oldest continuously operated business center under one ownership in Washington DC, having started under the corporation entitled Washington Office, Inc, in 1981.

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Hours of Operation

9am5pm MF

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1629 K St NW Ste 300
Washington DC USA, 200061631
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Jack Pearce
202 8350680

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