Ever wonder which U.S. companies are the biggest political donors?

The following chart, created by FindTheCompany and InsiderGov using data from the Center for Responsive Politics, shows the biggest political donations to Republicans and Democrats in the period stretching from 2002 to 2015.

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The totals include money from individual employees, company-owned political action committees, or PACs, and, in some cases, from the treasury of the actual company. They don't include so-called dark money, which is channeled through nonprofits that are not obliged to disclose details.

The chart is fully interactive; just hold your cursor over any of the bars. The “see more details” button will lead you to data on individual companies.

As the chart illustrates, many companies donate to both parties, and most make almost equal contributions to each.

Las Vegas Sands LVS, -0.60% , the casino operator headed by billionaire Sheldon Adelson and the biggest donor on the list, is an exception, contributing solely to Republican and conservative causes. Adelson himself famously funneled about $93 million to candidates and so-called super PACs in the 2012 election cycle, much of it going to Republican presidential aspirants Newt Gingrich and Mitt Romney.

Time Warner Inc. US:TWX is the main outlier on the Democratic side, plowing more than 75% of its donations to that party.

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