Amazon, Apple, Google, and Facebook all came out swinging against the House antitrust report that compared them to oil barons and railroad tycoons

Left to right: Apple CEO Tim Cook, Amazon CEO Jeff Bezos, Google CEO Sundar Pichai, Facebook CEO Mark Zuckerberg.ANGELA WEISS/AFP via Getty Images/Rich Fury/Getty Images/Stephen J. Cohen/WireImage/Mateusz Wlodarczyk/NurPhoto via Getty Images

• House Democrats on Tuesday published a wide-ranging antitrust report on Amazon, Apple, Google, and Facebook.
• The report decried all four companies as monopolies, and made sweeping recommendations for how to rein in their power including breaking them up.
• All four companies have responded claiming the report and its recommendations are misguided.

Big tech is getting ready to take on the House of Representatives.

The House Democrats on Tuesday dropped a 449-page report following a year-long antitrust investigation, laying out what they view as the monopoly power wielded by Apple, Amazon, Google, and Facebook.

"Companies that once were scrappy, underdog startups that challenged the status quo have become the kinds of monopolies we last saw in the era of oil barons and railroad tycoons," members of the subcommittee wrote in the report.

The report made a series of broad recommendations for leveling the competitive playing field, including new laws to prevent tech companies from using their platforms to boost their products ahead of competitors', banning mergers, and breaking up companies to prevent conflicts of interest.

The tech companies aren't taking this lying down.