Answering my own post:
all from Xilinx. After competing with NeoCad for a few
years Xilinx bought
them in 1995 and used the NeoCad tools.
I looked up some more facts. NeoCad was founded in November 1991 and had
about 50 employees when it was sold to Xilinx in March 1995 for $35 million.
The large FPGAs back then were pushing 10,000 gates.
Michael Holley
www.swtpc.com/mholley