You can often get matte screens as an option from ODM resellers such as Eurocom, Sager et al. Those guys buy barebones machines or parts from Clevo & others and then fit them to order. Jayne's 17" monster is one of those. It came with a glossy screen but they would have put a matte one in if asked. A few years ago while idly considering replacing my laptop I inquired about that and they were quite happy to do it.
Alternatively you can always buy a matte screen & install it yourself. I did that to Jayne's machine when the screen died. It's so much nicer to use her laptop now that we're not also watching the window behind us.