Table: “Total Employee Political Contributions (2015-2016)”, in Wall Street Journal, November 2, 2017. p. B4.
Alphabet/Google: $8,501,288.
Facebook: $2,634,732.
Twitter: $651234.
Source: FEC.
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Table: “Liberal Giving: Employee Contributions: Presidential Campaigns (2015-2016)”, in Wall Street Journal, November 2, 2017. p. B4.
Alphabet/Google: Hillary For America: $1,547,930 [98.4%]; Donald J Trump for President: $24892 [1.6%].
Facebook: Hillary For America: $461604 [99%]; Donald J Trump for President: $4669 [1.0%].
Twitter: Hillary For America: $122613 [96.8%]; Donald J Trump for President: $4060 [3.2%].
Source: FEC.
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I added the percentages to the second table for clarity.
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