Travel Technology - Who makes Dell keyboards

I want to buy a new desktop keyboard just like a few Dell ones that I have already. Who makes those keyboards? Are they a rebrand of the MS-ones like the mouse?

MS ones are not exactly a "rebrand", they are made specifically for MS. Logitech makes a lot of the mice for Dell, HP etc... but I presume it will be hard to find who makes Dell's keyboards as they produce so much of them I doubt they will sell to other parties...

Why not just order more dell keyboards?