Center for Political Accountability

An increasing number of the country's largest publicly traded companies are disclosing more than ever about political spending habits that the law permits them to keep secret.

That's the central finding of the fifth annual report from a group of academics and corporate ethicists, who say the average score among the biggest companies traded on American exchanges, the S&P 500, has gone up each year since 2014.

Though corporate political action committees must disclose their giving to candidates, those numbers are very often dwarfed by the donations businesses make to the trade associations and other outside groups that have driven so much of the steady rise in spending on elections. Conservatives say robust disclosure of these behaviors is the best form of regulating money in politics and is working fine, and this new report reflects that. Those who say campaign finance needs more assertive federal regulation will argue such corporate transparency is inconsistent and inadequate to the task, and the new report underscores that.