Pass parameter to View

Hi,

I'd like to give customers access to my application but I'd like to give each of them a different filtered view of my main View based on their userid.

So, I'd like to have a table of userids giving the company name associated with each userid. When a particular user logs on I'd like to lookup their company name and put it in a variable. I'd then like to be able to give all customers access to the same View but have the Base Filter for that view only contain the records that match the company name for that user.

I hope that makes sense.

Thanks,

Lee