More than 2,000 businesses and organizations have been lobbying on tax issues so far this year.

House and Senate Republicans recently passed a pair of tax bills that slash the corporate tax rate and give extra goodies to industries with some of the most active lobbyists. These include tax breaks for alcohol manufacturers, energy producers, and tech companies.

This is not a coincidence.

America’s largest corporations have been lobbying Congress on tax issue for years. Over the past two decades (when groups were required to start disclosing their lobbying activity), more businesses have entered the game, and they are lobbying a lot harder than they used to.

 Center for Responsive Politics

With Republicans in control of the House and Senate, and the prospect for a deal on tax reform looking promising, lobbying reached a pinnacle this year, with 2,065 groups pushing their cause, according to reports published by the nonpartisan Center for Responsive Politics. The efforts are employing more than 6,000 lobbyists, the nonpartisan Public Citizen counted.

The four organizations that reported the most lobbying activity on tax issues so far this year are Fortune 500 companies with a huge stake in the outcome: Comcast, Microsoft, Altria Group (formerly Philip Morris), and NextEra Energy. (Disclosure: Comcast, through its NBCUniversal subsidiary, is one of several major investors in Vox.com’s parent company, Vox Media.)

In all, these companies have spent millions of dollars this year alone lobbying on tax issues. Their disclosure reports show at least one common goal: lowering the corporate tax rate.

The reports also show aggressive campaigns for specific benefits. These companies aren’t getting everything they’ve lobbied for, but many have made it into the final bills. These include deductions for advertising expenses, lowering excise taxes on alcohol, and keeping the research and development Read More Here