The 16-month House investigation into tech largest companies — Amazon, Apple, Facebook and Google — is officially over. Released last week, the House Judiciary Committee’s report accuses the four companies of abusing their power and cites multiple problems in the way each of the four companies operate.

“The report, which was released on Tuesday and concludes a 16-month investigation into Amazon, Apple, Facebook and Google, recommended breaking up the companies and passing the most sweeping reforms to antitrust laws in decades,” notes this article in the New York Times.

Hobbling competition, harvesting data without consumer knowledge, excessive profit-taking and commissions, even collusion are among the charges leveled in the 449-page report. (If you have the stamina, you can read the full report here.)

“In a 449-page report that was presented by the House Judiciary Committee’s Democratic leadership, lawmakers said the four companies had turned from ’scrappy’ start-ups into ‘the kinds of monopolies we last saw in the era of oil barons and railroad tycoons,’” write Cecilia Kang and David McCabe in another New York Times piece. “The lawmakers said the companies had abused their dominant positions, setting and often dictating prices and rules for commerce, search, advertising, social networking and publishing.”