I'm not sure if any companies would do that as I'm not sure they'd consider it adequate promotion... Worth a shot though!
There are companies that will provide some facilities in return for a share of the profits (I know some vending machine companies do this, possibly some laundry companies also).
The other option is renting - at one of our properties we rent the vending machine, which can work out much cheaper for a start-up. I believe some laundry companies will also do the same.
Best tip I can give you is to buy in bulk. Go to your local electronics store and bargain away. You'd be surprised at how much money you can get off when you are buying 20 TVs for example...
With fridges, go for second-hand in a quality brand. I can recommend Skope fridges (not sure if you can get them where you are). They last forever with only minimal problems and you can pick up a second hand one for half the price of a new one.
In general, go with commercial products. Domestic products are cheaper, but it tends to be false economy as they tend not to put up with the high usage you get in a hostel. Maytag commercial coin operated washers/driers are very good quality and barely ever have problems.