ASUS
http://www.asus.com/event/2015/osupgrade/upgrade.html?12389293
Fujitsu
http://support.ts.fujitsu.com/content/win10/index.asp?lng=com
HP
http://www8.hp.com/us/en/ad/windows-10/coming-soon.html?jumpid=reg_r1002_usen_c-001_title_r0002
Lenovo
http://shop.lenovo.com/us/en/landingpage/windows-10/?IPromoID=LEN460257
Panasonic
http://pc-dl.panasonic.co.jp/itn/support/win10info.html