America’s top 50 donors gave a combined $14.7 billion to charity last year, according to new research by the Chronicle of Philanthropy. That’s close to triple the amount given by the same set in 2016, with the majority of the deposits driven by an emerging philanthropic force: tech money.

Eleven of the top contributors made their fortunes in tech, the Chronicle’s data shows. That vanguard might still be relatively small by headcount, but they have contributed 60% of the value in overall gifts. Their grand total is $8.7 billion.

The top three biggest givers are power couples with familiar pedigree: Bill and Melinda Gates, Mark Zuckerberg, and Priscilla Chan, and Michael and Susan Dell. Each gave to a foundation or charitable-minded operation that they’ve launched and not-shyly named for themselves — that’d be the Gates Foundation, Chan Zuckerberg Initiative, and Dell Foundation, respectively. The reason for this comes back to the tech mogul mindset.

Read the full article about America's top 50 donors by Ben Paynter at fastcompany.com.