Consider how many companies were not politically neutral on the issue of worker's rights and unionization. Or neutral on employing members of the Communist party.

Or, quoting https://en.wikipedia.org/wiki/History_of_American_newspapers - "The Republican party was especially effective in building a network of newspapers in major cities to broadcast its statements and editorialize in its favor."

That certainly sounds like the newspaper companies of the early 1800s weren't politically neutral.