One thing that makes a LAN Party is the sponsors. Several hardware companies offer LAN Party sponsorships on their websites and I have compiled a list of links. Many of them will provide some free swag but it is not guaranteed. Don't expect hardware or anything expensive. For most events, the most you will get is a poster to hang, a t-shirt or two and some stickers.
- Bawls Energy Drink
Centon Electronics(Their LAN Party site is gone)
- Cooler Master
Corsair Memory(site just got redone and they thier lan page is missing)
- Creative Sound Blaster
- Crucial Technology (min. 250 gamers)
- OCZ Technology
- Razer | Professional Gaming Peripherals (min. 250 gamers)
- Velocity Micro
I am still searching for more. If you find one I missed, post it in the comments and I will add it to the list.