Bolliger & Mabillard. 
 
That's what I thought.  The people who run the company are Walter Bolliger & Claude Mabillard. 
 
Then WHY, do I keep seeing the name BolliNger & Mabillard (with an 'n'). 
 
This name appears consitently in official, and trusted sources.  The American Rollercoaster, the book by Scott Rutherford calls them this name, and I contacted Six Flags, and they say the correct name is BOLLINGER & MABILLARD.  It is even on the Six Flags Site. 
 
If this is true, why does EVERYONE call them Bolliger & Mabillard. 
 
This needs clearing up, one of the names must be incorrect, but which one??