I have faced this very situation when do consulting projects. I got a list of companies from the Advisors VFP excellecne awards available from
http://www.advisor.com/wHome.nsf/w/FAeaw1999Unfortunatly they only have the 99 awards and finalist, but maybe you can get the previous entrants by emailing advisor directly.
Also keep in mind many large companies use VFP indirectly, using a commercial product developed in VFP. Products like SBT, Accountmate, TIW's Workshop would fall into this category, each would have an extensive list of high profile customers.
In my backyard, I know that DayTimers Inc uses VFP to produce reports from data off their Mainframe & Phone systems. This project was put together by my wife because the 'IT' department was backlogged indefinately and couldn't be bothered!
It can be a tough sell to the uninformed, though.
Bob
'If the people lead, the leaders will follow'
'War does not determine who is RIGHT, just who is LEFT'