In 2009, Intel making a serious challenge to claim the top spot in Linux kernel contributions. Red Hat, Novell, and IBM all have substantial software businesses, with heavy investments in Linux, so it makes sense that they'd contribute heavily to the Linux kernel. But according to new data Jonathan Corbet of LWN.net announced at the Ottawa Linux Symposium, Intel has surged from 2.3 percent in 2007 to 4.1 percent in 2008 to 6.9 percent in 2009. Red Hat still sits atop the corporate pile of contributors with 12.3 percent, but within the next two years it's possible that we'll see Intel top it.
More info: CNet