Google and Microsoft are the #1 and #2 most social corporations, according to a new report by NetProspex, a social media sales and marketing contact database.

Tech companies dominated the list, but not exclusively. Other companies in the top 25 include Amazon.com, Best Buy, Apple, Williams-Sonoma, Gap, Electronic Arts, Pulte Homes, and Walt Disney, which has fallen to #25 from the #5 spot since the last time the report was done in May. Goldman Sachs was #50.

Most of the corporations on the list were either very large, consumer-facing brands like Target or were related to the high tech industry.

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The NetProspex report measured social media activity across industries, job titles, geographic region and specific corporations. Employees in the "Search Engines - Online Portals," media, banking and marketing industries were most active in social media. Other surprises in the list were "Cleaning Products" (#11) and "Home Appliances" (#16).

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The industries with the least social employees were "Trucking, Moving & Storage," "Laundry & Dry Cleaning Services" and "Funeral Homes & Funeral-Related Services." The report also concluded that employees at funeral homes and in the tobacco industry "don't tweet."