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International Data Group
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==References== {{Reflist|30em}} {{IDG}} {{Blackstone Companies}} {{Authority control}} [[Category:International Data Group| ]] [[Category:1964 establishments in Massachusetts]] [[Category:2017 mergers and acquisitions]] [[Category:2021 mergers and acquisitions]] [[Category:China Oceanwide Holdings Group]] [[Category:Companies based in Norfolk County, Massachusetts]] [[Category:Magazine publishing companies of the United States]] [[Category:Needham, Massachusetts]] [[Category:Privately held companies based in Massachusetts]] [[Category:Publishing companies established in 1964]] [[Category:Research and analysis firms of the United States]] [[Category:Blackstone Inc. companies]]
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