Very sorry to hear about this.
The knock on effect of this company going under is staggering. I know of at least two other companies that are making big redundancies just on the back of this announcement.
For what it's worth IF you are being made redundant then the MINIMUM you can expect is statutary reduncy pay.
When I last looked it was £250 for every year you had been with the company capped at (I think) £3000.
If the company has gone bust I don't know if this applies, if you are in a trade union they should have a legal help line to sort this out.
Best of luck to all of you.